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-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/nothing_to_do.pass.cpp12
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/assign.pass.cpp35
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/copy.pass.cpp33
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_default.pass.cpp29
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_func.pass.cpp60
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp81
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_iterator.pass.cpp87
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_param.pass.cpp33
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eq.pass.cpp45
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval.pass.cpp279
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval_param.pass.cpp45
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/get_param.pass.cpp30
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/io.pass.cpp42
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/max.pass.cpp34
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/min.pass.cpp28
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_assign.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_copy.pass.cpp31
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_default.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_func.pass.cpp64
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_init.pass.cpp88
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp94
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_eq.pass.cpp39
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_types.pass.cpp28
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/set_param.pass.cpp31
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/types.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/assign.pass.cpp36
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/copy.pass.cpp34
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_default.pass.cpp35
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_func.pass.cpp64
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_init_func.pass.cpp78
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_iterator.pass.cpp96
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_param.pass.cpp41
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eq.pass.cpp47
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp695
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp97
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/get_param.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/io.pass.cpp44
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/max.pass.cpp30
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/min.pass.cpp30
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_assign.pass.cpp34
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_copy.pass.cpp33
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_default.pass.cpp34
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_func.pass.cpp67
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_init_func.pass.cpp79
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_iterator.pass.cpp100
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_eq.pass.cpp41
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_types.pass.cpp28
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/set_param.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/types.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/assign.pass.cpp36
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/copy.pass.cpp34
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_default.pass.cpp36
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_func.pass.cpp69
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_init_func.pass.cpp82
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_iterator.pass.cpp101
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_param.pass.cpp42
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eq.pass.cpp47
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp343
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp92
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/get_param.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/io.pass.cpp44
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/max.pass.cpp30
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/min.pass.cpp30
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_assign.pass.cpp34
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_copy.pass.cpp33
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_default.pass.cpp35
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_func.pass.cpp70
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp83
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_iterator.pass.cpp105
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_eq.pass.cpp41
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_types.pass.cpp28
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/set_param.pass.cpp32
-rw-r--r--libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/types.pass.cpp32
73 files changed, 4694 insertions, 0 deletions
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/nothing_to_do.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/nothing_to_do.pass.cpp
new file mode 100644
index 00000000000..b58f5c55b64
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/nothing_to_do.pass.cpp
@@ -0,0 +1,12 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+int main()
+{
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/assign.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/assign.pass.cpp
new file mode 100644
index 00000000000..aee3f74f26c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/assign.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// discrete_distribution& operator=(const discrete_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::discrete_distribution<> D;
+ double p[] = {2, 4, 1, 8};
+ D d1(p, p+4);
+ D d2;
+ assert(d1 != d2);
+ d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/copy.pass.cpp
new file mode 100644
index 00000000000..b133ac708da
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/copy.pass.cpp
@@ -0,0 +1,33 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// discrete_distribution(const discrete_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::discrete_distribution<> D;
+ double p[] = {2, 4, 1, 8};
+ D d1(p, p+4);
+ D d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_default.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_default.pass.cpp
new file mode 100644
index 00000000000..3c1ed6a186e
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_default.pass.cpp
@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// discrete_distribution();
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ D d;
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_func.pass.cpp
new file mode 100644
index 00000000000..34af69382c1
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_func.pass.cpp
@@ -0,0 +1,60 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class UnaryOperation>
+// discrete_distribution(size_t nw, double xmin, double xmax,
+// UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double fw(double x)
+{
+ return x+1;
+}
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ D d(0, 0, 1, fw);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d(1, 0, 1, fw);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d(2, 0.5, 1.5, fw);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == .4375);
+ assert(p[1] == .5625);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d(4, 0, 2, fw);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 4);
+ assert(p[0] == .15625);
+ assert(p[1] == .21875);
+ assert(p[2] == .28125);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp
new file mode 100644
index 00000000000..bc4494b9848
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_init.pass.cpp
@@ -0,0 +1,81 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// discrete_distribution(initializer_list<double> wl);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {10};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {10, 30};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.25);
+ assert(p[1] == 0.75);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {30, 10};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {30, 0, 10};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {0, 30, 10};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0.75);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ D d = {0, 0, 10};
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0);
+ assert(p[2] == 1);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_iterator.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_iterator.pass.cpp
new file mode 100644
index 00000000000..65e14eeed2a
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_iterator.pass.cpp
@@ -0,0 +1,87 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class InputIterator>
+// discrete_distribution(InputIterator firstW, InputIterator lastW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {1};
+ D d(p0, p0);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {10};
+ D d(p0, p0+1);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {10, 30};
+ D d(p0, p0+2);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.25);
+ assert(p[1] == 0.75);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {30, 10};
+ D d(p0, p0+2);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {30, 0, 10};
+ D d(p0, p0+3);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {0, 30, 10};
+ D d(p0, p0+3);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0.75);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {0, 0, 10};
+ D d(p0, p0+3);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0);
+ assert(p[2] == 1);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_param.pass.cpp
new file mode 100644
index 00000000000..c12fe45db92
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_param.pass.cpp
@@ -0,0 +1,33 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// explicit discrete_distribution(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {10, 30};
+ P pa(p0, p0+2);
+ D d(pa);
+ std::vector<double> p = d.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.25);
+ assert(p[1] == 0.75);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eq.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eq.pass.cpp
new file mode 100644
index 00000000000..bad06987b0c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eq.pass.cpp
@@ -0,0 +1,45 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// bool operator=(const discrete_distribution& x,
+// const discrete_distribution& y);
+// bool operator!(const discrete_distribution& x,
+// const discrete_distribution& y);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ D d1;
+ D d2;
+ assert(d1 == d2);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {1};
+ D d1(p0, p0+1);
+ D d2;
+ assert(d1 == d2);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {10, 30};
+ D d1(p0, p0+2);
+ D d2;
+ assert(d1 != d2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval.pass.cpp
new file mode 100644
index 00000000000..55080b25202
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval.pass.cpp
@@ -0,0 +1,279 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// REQUIRES: long_tests
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g);
+
+#include <random>
+#include <vector>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ D d;
+ const int N = 100;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ assert((double)u[i]/N == prob[i]);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {.3};
+ D d(p0, p0+1);
+ const int N = 100;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ assert((double)u[i]/N == prob[i]);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {.75, .25};
+ D d(p0, p0+2);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {0, 1};
+ D d(p0, p0+2);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ assert((double)u[0]/N == prob[0]);
+ assert((double)u[1]/N == prob[1]);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {1, 0};
+ D d(p0, p0+2);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ assert((double)u[0]/N == prob[0]);
+ assert((double)u[1]/N == prob[1]);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {.3, .1, .6};
+ D d(p0, p0+3);
+ const int N = 10000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {0, 25, 75};
+ D d(p0, p0+3);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {25, 0, 75};
+ D d(p0, p0+3);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {25, 75, 0};
+ D d(p0, p0+3);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {0, 0, 1};
+ D d(p0, p0+3);
+ const int N = 100;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {0, 1, 0};
+ D d(p0, p0+3);
+ const int N = 100;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {1, 0, 0};
+ D d(p0, p0+3);
+ const int N = 100;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ double p0[] = {33, 0, 0, 67};
+ D d(p0, p0+3);
+ const int N = 1000000;
+ std::vector<D::result_type> u(d.max()+1);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v <= d.max());
+ u[v]++;
+ }
+ std::vector<double> prob = d.probabilities();
+ for (int i = 0; i <= d.max(); ++i)
+ if (prob[i] != 0)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ else
+ assert(u[i] == 0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval_param.pass.cpp
new file mode 100644
index 00000000000..8d8a2242409
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/eval_param.pass.cpp
@@ -0,0 +1,45 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// REQUIRES: long_tests
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
+
+#include <random>
+#include <vector>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d;
+ double p0[] = {.3, .1, .6};
+ P p(p0, p0+3);
+ const int N = 10000000;
+ std::vector<D::result_type> u(3);
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g, p);
+ assert(0 <= v && v <= 2);
+ u[v]++;
+ }
+ std::vector<double> prob = p.probabilities();
+ for (int i = 0; i <= 2; ++i)
+ assert(std::abs((double)u[i]/N - prob[i]) / prob[i] < 0.001);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/get_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/get_param.pass.cpp
new file mode 100644
index 00000000000..4970c5aae40
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/get_param.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// param_type param() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {.3, .1, .6};
+ P p(p0, p0+3);
+ D d(p);
+ assert(d.param() == p);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/io.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/io.pass.cpp
new file mode 100644
index 00000000000..92499501659
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/io.pass.cpp
@@ -0,0 +1,42 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template <class charT, class traits>
+// basic_ostream<charT, traits>&
+// operator<<(basic_ostream<charT, traits>& os,
+// const discrete_distribution& x);
+//
+// template <class charT, class traits>
+// basic_istream<charT, traits>&
+// operator>>(basic_istream<charT, traits>& is,
+// discrete_distribution& x);
+
+#include <random>
+#include <sstream>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {.3, .1, .6};
+ D d1(p0, p0+3);
+ std::ostringstream os;
+ os << d1;
+ std::istringstream is(os.str());
+ D d2;
+ is >> d2;
+ assert(d1 == d2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/max.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/max.pass.cpp
new file mode 100644
index 00000000000..b1d1acdab50
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/max.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// result_type max() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {.3, .1, .6};
+ D d(p0, p0+3);
+ assert(d.max() == 2);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {.3, .1, .6, .2};
+ D d(p0, p0+4);
+ assert(d.max() == 3);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/min.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/min.pass.cpp
new file mode 100644
index 00000000000..ab938323814
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/min.pass.cpp
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// result_type min() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ double p0[] = {.3, .1, .6};
+ D d(p0, p0+3);
+ assert(d.min() == 0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_assign.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_assign.pass.cpp
new file mode 100644
index 00000000000..ea57852b62c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_assign.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type param_type;
+ double d0[] = {.3, .1, .6};
+ param_type p0(d0, d0+3);
+ param_type p;
+ p = p0;
+ assert(p == p0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_copy.pass.cpp
new file mode 100644
index 00000000000..b65ebb0d8c7
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_copy.pass.cpp
@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type param_type;
+ double d0[] = {.3, .1, .6};
+ param_type p0(d0, d0+3);
+ param_type p = p0;
+ assert(p == p0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_default.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_default.pass.cpp
new file mode 100644
index 00000000000..1071305f4db
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_default.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// param_type(initializer_list<double> wl);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {1};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_func.pass.cpp
new file mode 100644
index 00000000000..6d43b2234fc
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_func.pass.cpp
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class UnaryOperation>
+// param_type(size_t nw, double xmin, double xmax,
+// UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double fw(double x)
+{
+ return x+1;
+}
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa(0, 0, 1, fw);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa(1, 0, 1, fw);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa(2, 0.5, 1.5, fw);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == .4375);
+ assert(p[1] == .5625);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa(4, 0, 2, fw);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 4);
+ assert(p[0] == .15625);
+ assert(p[1] == .21875);
+ assert(p[2] == .28125);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_init.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_init.pass.cpp
new file mode 100644
index 00000000000..79d8a0b71a9
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_init.pass.cpp
@@ -0,0 +1,88 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// param_type(initializer_list<double> wl);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {10};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {10, 30};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.25);
+ assert(p[1] == 0.75);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {30, 10};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {30, 0, 10};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {0, 30, 10};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0.75);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ P pa = {0, 0, 10};
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0);
+ assert(p[2] == 1);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp
new file mode 100644
index 00000000000..7ef646707c1
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_ctor_iterator.pass.cpp
@@ -0,0 +1,94 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// template<class InputIterator>
+// param_type(InputIterator firstW, InputIterator lastW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {1};
+ P pa(p0, p0);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {10};
+ P pa(p0, p0+1);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 1);
+ assert(p[0] == 1);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {10, 30};
+ P pa(p0, p0+2);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.25);
+ assert(p[1] == 0.75);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {30, 10};
+ P pa(p0, p0+2);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 2);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {30, 0, 10};
+ P pa(p0, p0+3);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0.75);
+ assert(p[1] == 0);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {0, 30, 10};
+ P pa(p0, p0+3);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0.75);
+ assert(p[2] == 0.25);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double p0[] = {0, 0, 10};
+ P pa(p0, p0+3);
+ std::vector<double> p = pa.probabilities();
+ assert(p.size() == 3);
+ assert(p[0] == 0);
+ assert(p[1] == 0);
+ assert(p[2] == 1);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_eq.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_eq.pass.cpp
new file mode 100644
index 00000000000..6ec2c2aad4b
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_eq.pass.cpp
@@ -0,0 +1,39 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type param_type;
+ double p0[] = {30, 10};
+ param_type p1(p0, p0+2);
+ param_type p2(p0, p0+2);
+ assert(p1 == p2);
+ }
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type param_type;
+ double p0[] = {30, 10};
+ param_type p1(p0, p0+2);
+ param_type p2;
+ assert(p1 != p2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_types.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_types.pass.cpp
new file mode 100644
index 00000000000..086b7600feb
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/param_types.pass.cpp
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type param_type;
+ typedef param_type::distribution_type distribution_type;
+ static_assert((std::is_same<D, distribution_type>::value), "");
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/set_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/set_param.pass.cpp
new file mode 100644
index 00000000000..bc433ec7564
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/set_param.pass.cpp
@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+
+// void param(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::param_type P;
+ double d0[] = {.3, .1, .6};
+ P p(d0, d0+3);
+ D d;
+ d.param(p);
+ assert(d.param() == p);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/types.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/types.pass.cpp
new file mode 100644
index 00000000000..af73008ff41
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/types.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class discrete_distribution
+// {
+// typedef bool result_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::discrete_distribution<> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, int>::value), "");
+ }
+ {
+ typedef std::discrete_distribution<long> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, long>::value), "");
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/assign.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/assign.pass.cpp
new file mode 100644
index 00000000000..e5c994445d4
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/assign.pass.cpp
@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// piecewise_constant_distribution& operator=(const piecewise_constant_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::piecewise_constant_distribution<> D;
+ double p[] = {2, 4, 1, 8};
+ double b[] = {2, 4, 5, 8, 9};
+ D d1(b, b+5, p);
+ D d2;
+ assert(d1 != d2);
+ d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/copy.pass.cpp
new file mode 100644
index 00000000000..a3eb1f4a503
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/copy.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// piecewise_constant_distribution(const piecewise_constant_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::piecewise_constant_distribution<> D;
+ double p[] = {2, 4, 1, 8};
+ double b[] = {2, 4, 5, 8, 9};
+ D d1(b, b+5, p);
+ D d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_default.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_default.pass.cpp
new file mode 100644
index 00000000000..d4f339fe7f3
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_default.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// piecewise_constant_distribution(initializer_list<double> wl);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d;
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_func.pass.cpp
new file mode 100644
index 00000000000..74fa2344268
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_func.pass.cpp
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template<class UnaryOperation>
+// piecewise_constant_distribution(size_t nw, result_type xmin,
+// result_type xmax, UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double fw(double x)
+{
+ return 2*x;
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d(0, 0, 1, fw);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d(1, 10, 12, fw);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 12);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 0.5);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d(2, 6, 14, fw);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 6);
+ assert(iv[1] == 10);
+ assert(iv[2] == 14);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 0.1);
+ assert(dn[1] == 0.15);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_init_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_init_func.pass.cpp
new file mode 100644
index 00000000000..5708e45093c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_init_func.pass.cpp
@@ -0,0 +1,78 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// piecewise_constant_distribution(initializer_list<result_type> bl,
+// UnaryOperation fw);
+
+#include <iostream>
+
+#include <random>
+#include <cassert>
+
+double f(double x)
+{
+ return x*2;
+}
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d({}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d({12}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d({12, 14}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 12);
+ assert(iv[1] == 14);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 0.5);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d({5.5, 7.5, 11.5}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 5.5);
+ assert(iv[1] == 7.5);
+ assert(iv[2] == 11.5);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 0.203125);
+ assert(dn[1] == 0.1484375);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_iterator.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_iterator.pass.cpp
new file mode 100644
index 00000000000..d994b0a802b
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_iterator.pass.cpp
@@ -0,0 +1,96 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template<class InputIterator>
+// piecewise_constant_distribution(InputIteratorB firstB,
+// InputIteratorB lastB,
+// InputIteratorW firstW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10};
+ double p[] = {12};
+ D d(b, b, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10};
+ double p[] = {12};
+ D d(b, b+1, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 15};
+ double p[] = {12};
+ D d(b, b+2, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1/5.);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 15, 16};
+ double p[] = {.25, .75};
+ D d(b, b+3, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ assert(iv[2] == 16);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == .25/5.);
+ assert(dn[1] == .75);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ D d(b, b+4, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 4);
+ assert(iv[0] == 10);
+ assert(iv[1] == 14);
+ assert(iv[2] == 16);
+ assert(iv[3] == 17);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == .0625);
+ assert(dn[1] == .3125);
+ assert(dn[2] == .125);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_param.pass.cpp
new file mode 100644
index 00000000000..0ccdba6b964
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/ctor_param.pass.cpp
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// explicit piecewise_constant_distribution(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ P pa(b, b+4, p);
+ D d(pa);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 4);
+ assert(iv[0] == 10);
+ assert(iv[1] == 14);
+ assert(iv[2] == 16);
+ assert(iv[3] == 17);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == .0625);
+ assert(dn[1] == .3125);
+ assert(dn[2] == .125);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eq.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eq.pass.cpp
new file mode 100644
index 00000000000..2ef9d7b6e0f
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eq.pass.cpp
@@ -0,0 +1,47 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// bool operator=(const piecewise_constant_distribution& x,
+// const piecewise_constant_distribution& y);
+// bool operator!(const piecewise_constant_distribution& x,
+// const piecewise_constant_distribution& y);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ D d1;
+ D d2;
+ assert(d1 == d2);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ D d1(b, b+4, p);
+ D d2(b, b+4, p);
+ assert(d1 == d2);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ D d1(b, b+4, p);
+ D d2;
+ assert(d1 != d2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp
new file mode 100644
index 00000000000..5d14b3612b2
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp
@@ -0,0 +1,695 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// REQUIRES: long_tests
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g);
+
+#include <random>
+#include <vector>
+#include <iterator>
+#include <numeric>
+#include <cassert>
+
+template <class T>
+inline
+T
+sqr(T x)
+{
+ return x*x;
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 0, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 0, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 25, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 0, 1};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16};
+ double p[] = {75, 25};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16};
+ double p[] = {0, 25};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16};
+ double p[] = {1, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14};
+ double p[] = {1};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
new file mode 100644
index 00000000000..6850115875b
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
@@ -0,0 +1,97 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// REQUIRES: long_tests
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
+
+#include <random>
+#include <vector>
+#include <iterator>
+#include <numeric>
+#include <cassert>
+
+template <class T>
+inline
+T
+sqr(T x)
+{
+ return x*x;
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d;
+ P pa(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g, pa);
+ assert(10 <= v && v < 17);
+ u.push_back(v);
+ }
+ std::vector<double> prob(std::begin(p), std::end(p));
+ double s = std::accumulate(prob.begin(), prob.end(), 0.0);
+ for (int i = 0; i < prob.size(); ++i)
+ prob[i] /= s;
+ std::sort(u.begin(), u.end());
+ for (int i = 0; i < Np; ++i)
+ {
+ typedef std::vector<D::result_type>::iterator I;
+ I lb = std::lower_bound(u.begin(), u.end(), b[i]);
+ I ub = std::lower_bound(u.begin(), u.end(), b[i+1]);
+ const size_t Ni = ub - lb;
+ if (prob[i] == 0)
+ assert(Ni == 0);
+ else
+ {
+ assert(std::abs((double)Ni/N - prob[i]) / prob[i] < .01);
+ double mean = std::accumulate(lb, ub, 0.0) / Ni;
+ double var = 0;
+ double skew = 0;
+ double kurtosis = 0;
+ for (I j = lb; j != ub; ++j)
+ {
+ double d = (*j - mean);
+ double d2 = sqr(d);
+ var += d2;
+ skew += d * d2;
+ kurtosis += d2 * d2;
+ }
+ var /= Ni;
+ double dev = std::sqrt(var);
+ skew /= Ni * dev * var;
+ kurtosis /= Ni * var * var;
+ kurtosis -= 3;
+ double x_mean = (b[i+1] + b[i]) / 2;
+ double x_var = sqr(b[i+1] - b[i]) / 12;
+ double x_skew = 0;
+ double x_kurtosis = -6./5;
+ assert(std::abs((mean - x_mean) / x_mean) < 0.01);
+ assert(std::abs((var - x_var) / x_var) < 0.01);
+ assert(std::abs(skew - x_skew) < 0.01);
+ assert(std::abs((kurtosis - x_kurtosis) / x_kurtosis) < 0.01);
+ }
+ }
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/get_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/get_param.pass.cpp
new file mode 100644
index 00000000000..fdda4e8f0d6
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/get_param.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// param_type param() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ P pa(b, b+Np+1, p);
+ D d(pa);
+ assert(d.param() == pa);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/io.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/io.pass.cpp
new file mode 100644
index 00000000000..9af776d549a
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/io.pass.cpp
@@ -0,0 +1,44 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template <class charT, class traits>
+// basic_ostream<charT, traits>&
+// operator<<(basic_ostream<charT, traits>& os,
+// const piecewise_constant_distribution& x);
+//
+// template <class charT, class traits>
+// basic_istream<charT, traits>&
+// operator>>(basic_istream<charT, traits>& is,
+// piecewise_constant_distribution& x);
+
+#include <random>
+#include <sstream>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d1(b, b+Np+1, p);
+ std::ostringstream os;
+ os << d1;
+ std::istringstream is(os.str());
+ D d2;
+ is >> d2;
+ assert(d1 == d2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/max.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/max.pass.cpp
new file mode 100644
index 00000000000..772c36ed73e
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/max.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// result_type max() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ assert(d.max() == 17);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/min.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/min.pass.cpp
new file mode 100644
index 00000000000..66618ba95d7
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/min.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// result_type min() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np+1, p);
+ assert(d.min() == 10);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_assign.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_assign.pass.cpp
new file mode 100644
index 00000000000..4d3a503584e
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_assign.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ P p0(b, b+Np+1, p);
+ P p1;
+ p1 = p0;
+ assert(p1 == p0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_copy.pass.cpp
new file mode 100644
index 00000000000..de63a54edfb
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_copy.pass.cpp
@@ -0,0 +1,33 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ P p0(b, b+Np+1, p);
+ P p1 = p0;
+ assert(p1 == p0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_default.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_default.pass.cpp
new file mode 100644
index 00000000000..fd84d46713c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_default.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// param_type();
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa;
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_func.pass.cpp
new file mode 100644
index 00000000000..98e3006f3e3
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_func.pass.cpp
@@ -0,0 +1,67 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template<class UnaryOperation>
+// param_type(size_t nw, double xmin, double xmax,
+// UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double fw(double x)
+{
+ return 2*x;
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa(0, 0, 1, fw);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa(1, 10, 12, fw);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 12);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 0.5);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa(2, 6, 14, fw);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 6);
+ assert(iv[1] == 10);
+ assert(iv[2] == 14);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 0.1);
+ assert(dn[1] == 0.15);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_init_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_init_func.pass.cpp
new file mode 100644
index 00000000000..fa6530979ed
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_init_func.pass.cpp
@@ -0,0 +1,79 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// param_type(initializer_list<result_type> bl, UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double f(double x)
+{
+ return x*2;
+}
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa({}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa({12}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa({12, 14}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 12);
+ assert(iv[1] == 14);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 0.5);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ P pa({5.5, 7.5, 11.5}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 5.5);
+ assert(iv[1] == 7.5);
+ assert(iv[2] == 11.5);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 0.203125);
+ assert(dn[1] == 0.1484375);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_iterator.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_iterator.pass.cpp
new file mode 100644
index 00000000000..98d467c07e2
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_ctor_iterator.pass.cpp
@@ -0,0 +1,100 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// template<class InputIterator>
+// param_type(InputIteratorB firstB, InputIteratorB lastB,
+// InputIteratorW firstW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10};
+ double p[] = {12};
+ P pa(b, b, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10};
+ double p[] = {12};
+ P pa(b, b+1, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 15};
+ double p[] = {12};
+ P pa(b, b+2, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 1);
+ assert(dn[0] == 1/5.);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 15, 16};
+ double p[] = {.25, .75};
+ P pa(b, b+3, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ assert(iv[2] == 16);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == .25/5.);
+ assert(dn[1] == .75);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ P pa(b, b+4, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 4);
+ assert(iv[0] == 10);
+ assert(iv[1] == 14);
+ assert(iv[2] == 16);
+ assert(iv[3] == 17);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == .0625);
+ assert(dn[1] == .3125);
+ assert(dn[2] == .125);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_eq.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_eq.pass.cpp
new file mode 100644
index 00000000000..9cc554e604a
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_eq.pass.cpp
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ P p1(b, b+4, p);
+ P p2(b, b+4, p);
+ assert(p1 == p2);
+ }
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ P p1(b, b+3, p);
+ P p2(b, b+4, p);
+ assert(p1 != p2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_types.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_types.pass.cpp
new file mode 100644
index 00000000000..e039df36c98
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/param_types.pass.cpp
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type param_type;
+ typedef param_type::distribution_type distribution_type;
+ static_assert((std::is_same<D, distribution_type>::value), "");
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/set_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/set_param.pass.cpp
new file mode 100644
index 00000000000..1a3fedb0940
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/set_param.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+
+// void param(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5};
+ P pa(b, b+4, p);
+ D d;
+ d.param(pa);
+ assert(d.param() == pa);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/types.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/types.pass.cpp
new file mode 100644
index 00000000000..76032597973
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.pconst/types.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_constant_distribution
+// {
+// typedef bool result_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::piecewise_constant_distribution<> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, double>::value), "");
+ }
+ {
+ typedef std::piecewise_constant_distribution<float> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, float>::value), "");
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/assign.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/assign.pass.cpp
new file mode 100644
index 00000000000..0ba7dcb5919
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/assign.pass.cpp
@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// piecewise_linear_distribution& operator=(const piecewise_linear_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::piecewise_linear_distribution<> D;
+ double p[] = {2, 4, 1, 8, 3};
+ double b[] = {2, 4, 5, 8, 9};
+ D d1(b, b+5, p);
+ D d2;
+ assert(d1 != d2);
+ d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/copy.pass.cpp
new file mode 100644
index 00000000000..536b139dda6
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/copy.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// piecewise_linear_distribution(const piecewise_linear_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::piecewise_linear_distribution<> D;
+ double p[] = {2, 4, 1, 8, 2};
+ double b[] = {2, 4, 5, 8, 9};
+ D d1(b, b+5, p);
+ D d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_default.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_default.pass.cpp
new file mode 100644
index 00000000000..745bd6b97ec
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_default.pass.cpp
@@ -0,0 +1,36 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// piecewise_linear_distribution(initializer_list<double> wl);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d;
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_func.pass.cpp
new file mode 100644
index 00000000000..3ebaf77f756
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_func.pass.cpp
@@ -0,0 +1,69 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template<class UnaryOperation>
+// piecewise_linear_distribution(size_t nw, result_type xmin,
+// result_type xmax, UnaryOperation fw);
+
+#include <iostream>
+
+#include <random>
+#include <cassert>
+
+double fw(double x)
+{
+ return 2*x;
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d(0, 0, 1, fw);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 0);
+ assert(dn[1] == 2);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d(1, 10, 12, fw);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 12);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 20./44);
+ assert(dn[1] == 24./44);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d(2, 6, 14, fw);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 6);
+ assert(iv[1] == 10);
+ assert(iv[2] == 14);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == 0.075);
+ assert(dn[1] == 0.125);
+ assert(dn[2] == 0.175);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_init_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_init_func.pass.cpp
new file mode 100644
index 00000000000..44c76f0cf6c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_init_func.pass.cpp
@@ -0,0 +1,82 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// piecewise_linear_distribution(initializer_list<result_type> bl,
+// UnaryOperation fw);
+
+#include <iostream>
+
+#include <random>
+#include <cassert>
+
+double f(double x)
+{
+ return x*2;
+}
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d({}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d({12}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d({10, 12}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 12);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 20./44);
+ assert(dn[1] == 24./44);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d({6, 10, 14}, f);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 6);
+ assert(iv[1] == 10);
+ assert(iv[2] == 14);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == 0.075);
+ assert(dn[1] == 0.125);
+ assert(dn[2] == 0.175);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_iterator.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_iterator.pass.cpp
new file mode 100644
index 00000000000..5fce58bbd97
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_iterator.pass.cpp
@@ -0,0 +1,101 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template<class InputIterator>
+// piecewise_linear_distribution(InputIteratorB firstB,
+// InputIteratorB lastB,
+// InputIteratorW firstW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10};
+ double p[] = {12};
+ D d(b, b, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10};
+ double p[] = {12};
+ D d(b, b+1, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 15};
+ double p[] = {20, 20};
+ D d(b, b+2, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1/5.);
+ assert(dn[1] == 1/5.);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 15, 16};
+ double p[] = {.25, .75, .25};
+ D d(b, b+3, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ assert(iv[2] == 16);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == .25/3);
+ assert(dn[1] == .75/3);
+ assert(dn[2] == .25/3);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 1, 1, 0};
+ D d(b, b+4, p);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 4);
+ assert(iv[0] == 10);
+ assert(iv[1] == 14);
+ assert(iv[2] == 16);
+ assert(iv[3] == 17);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 4);
+ assert(dn[0] == 0);
+ assert(dn[1] == 1/4.5);
+ assert(dn[2] == 1/4.5);
+ assert(dn[3] == 0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_param.pass.cpp
new file mode 100644
index 00000000000..7dc47b4a3a2
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/ctor_param.pass.cpp
@@ -0,0 +1,42 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// explicit piecewise_linear_distribution(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ P pa(b, b+4, p);
+ D d(pa);
+ std::vector<double> iv = d.intervals();
+ assert(iv.size() == 4);
+ assert(iv[0] == 10);
+ assert(iv[1] == 14);
+ assert(iv[2] == 16);
+ assert(iv[3] == 17);
+ std::vector<double> dn = d.densities();
+ assert(dn.size() == 4);
+ assert(dn[0] == 25/256.25);
+ assert(dn[1] == 62.5/256.25);
+ assert(dn[2] == 12.5/256.25);
+ assert(dn[3] == 0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eq.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eq.pass.cpp
new file mode 100644
index 00000000000..766989c5889
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eq.pass.cpp
@@ -0,0 +1,47 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// bool operator=(const piecewise_linear_distribution& x,
+// const piecewise_linear_distribution& y);
+// bool operator!(const piecewise_linear_distribution& x,
+// const piecewise_linear_distribution& y);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ D d1;
+ D d2;
+ assert(d1 == d2);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 1};
+ D d1(b, b+4, p);
+ D d2(b, b+4, p);
+ assert(d1 == d2);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ D d1(b, b+4, p);
+ D d2;
+ assert(d1 != d2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp
new file mode 100644
index 00000000000..af75fce512e
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp
@@ -0,0 +1,343 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// REQUIRES: long_tests
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g);
+
+#include <iostream>
+
+#include <random>
+#include <vector>
+#include <iterator>
+#include <numeric>
+#include <cassert>
+
+template <class T>
+inline
+T
+sqr(T x)
+{
+ return x*x;
+}
+
+double
+f(double x, double a, double m, double b, double c)
+{
+ return a + m*(sqr(x) - sqr(b))/2 + c*(x-b);
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 1, 1, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 0, 1, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {1, 0, 0, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16};
+ double p[] = {0, 1, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14};
+ double p[] = {1, 1};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g);
+ assert(d.min() <= v && v < d.max());
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp
new file mode 100644
index 00000000000..fe704228e78
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp
@@ -0,0 +1,92 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// REQUIRES: long_tests
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
+
+#include <random>
+#include <vector>
+#include <iterator>
+#include <numeric>
+#include <cassert>
+
+template <class T>
+inline
+T
+sqr(T x)
+{
+ return x*x;
+}
+
+double
+f(double x, double a, double m, double b, double c)
+{
+ return a + m*(sqr(x) - sqr(b))/2 + c*(x-b);
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ typedef std::mt19937_64 G;
+ G g;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]) - 1;
+ D d;
+ P pa(b, b+Np+1, p);
+ const int N = 1000000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ {
+ D::result_type v = d(g, pa);
+ assert(10 <= v && v < 17);
+ u.push_back(v);
+ }
+ std::sort(u.begin(), u.end());
+ int kp = -1;
+ double a;
+ double m;
+ double bk;
+ double c;
+ std::vector<double> areas(Np);
+ double S = 0;
+ for (int i = 0; i < areas.size(); ++i)
+ {
+ areas[i] = (p[i]+p[i+1])*(b[i+1]-b[i])/2;
+ S += areas[i];
+ }
+ for (int i = 0; i < areas.size(); ++i)
+ areas[i] /= S;
+ for (int i = 0; i < Np+1; ++i)
+ p[i] /= S;
+ for (int i = 0; i < N; ++i)
+ {
+ int k = std::lower_bound(b, b+Np+1, u[i]) - b - 1;
+ if (k != kp)
+ {
+ a = 0;
+ for (int j = 0; j < k; ++j)
+ a += areas[j];
+ m = (p[k+1] - p[k]) / (b[k+1] - b[k]);
+ bk = b[k];
+ c = (b[k+1]*p[k] - b[k]*p[k+1]) / (b[k+1] - b[k]);
+ kp = k;
+ }
+ assert(std::abs(f(u[i], a, m, bk, c) - double(i)/N) < .001);
+ }
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/get_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/get_param.pass.cpp
new file mode 100644
index 00000000000..57a8ca5589c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/get_param.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// param_type param() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 10};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ P pa(b, b+Np, p);
+ D d(pa);
+ assert(d.param() == pa);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/io.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/io.pass.cpp
new file mode 100644
index 00000000000..1be2791fa47
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/io.pass.cpp
@@ -0,0 +1,44 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template <class charT, class traits>
+// basic_ostream<charT, traits>&
+// operator<<(basic_ostream<charT, traits>& os,
+// const piecewise_linear_distribution& x);
+//
+// template <class charT, class traits>
+// basic_istream<charT, traits>&
+// operator>>(basic_istream<charT, traits>& is,
+// piecewise_linear_distribution& x);
+
+#include <random>
+#include <sstream>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 25};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d1(b, b+Np, p);
+ std::ostringstream os;
+ os << d1;
+ std::istringstream is(os.str());
+ D d2;
+ is >> d2;
+ assert(d1 == d2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/max.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/max.pass.cpp
new file mode 100644
index 00000000000..3dc12b69253
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/max.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// result_type max() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np, p);
+ assert(d.max() == 17);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/min.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/min.pass.cpp
new file mode 100644
index 00000000000..4d4a7603a01
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/min.pass.cpp
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// result_type min() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ D d(b, b+Np, p);
+ assert(d.min() == 10);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_assign.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_assign.pass.cpp
new file mode 100644
index 00000000000..055b2f58e79
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_assign.pass.cpp
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 2};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ P p0(b, b+Np, p);
+ P p1;
+ p1 = p0;
+ assert(p1 == p0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_copy.pass.cpp
new file mode 100644
index 00000000000..87d94940a87
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_copy.pass.cpp
@@ -0,0 +1,33 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 5};
+ const size_t Np = sizeof(p) / sizeof(p[0]);
+ P p0(b, b+Np, p);
+ P p1 = p0;
+ assert(p1 == p0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_default.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_default.pass.cpp
new file mode 100644
index 00000000000..0bdf2c337d2
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_default.pass.cpp
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// param_type();
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa;
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_func.pass.cpp
new file mode 100644
index 00000000000..27e93ab6171
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_func.pass.cpp
@@ -0,0 +1,70 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template<class UnaryOperation>
+// param_type(size_t nw, double xmin, double xmax,
+// UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double fw(double x)
+{
+ return 2*x;
+}
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa(0, 0, 1, fw);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 0);
+ assert(dn[1] == 2);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa(1, 10, 12, fw);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 12);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 20./44);
+ assert(dn[1] == 24./44);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa(2, 6, 14, fw);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 6);
+ assert(iv[1] == 10);
+ assert(iv[2] == 14);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == 0.075);
+ assert(dn[1] == 0.125);
+ assert(dn[2] == 0.175);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp
new file mode 100644
index 00000000000..cfa416434a2
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_init_func.pass.cpp
@@ -0,0 +1,83 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// param_type(initializer_list<result_type> bl, UnaryOperation fw);
+
+#include <random>
+#include <cassert>
+
+double f(double x)
+{
+ return x*2;
+}
+
+int main()
+{
+#ifndef _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa({}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa({12}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa({10, 12}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 12);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 20./44);
+ assert(dn[1] == 24./44);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ P pa({6, 10, 14}, f);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 6);
+ assert(iv[1] == 10);
+ assert(iv[2] == 14);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == 0.075);
+ assert(dn[1] == 0.125);
+ assert(dn[2] == 0.175);
+ }
+#endif // _LIBCPP_HAS_NO_GENERALIZED_INITIALIZERS
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_iterator.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_iterator.pass.cpp
new file mode 100644
index 00000000000..117a5ef93bb
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_ctor_iterator.pass.cpp
@@ -0,0 +1,105 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// template<class InputIterator>
+// param_type(InputIteratorB firstB, InputIteratorB lastB,
+// InputIteratorW firstW);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10};
+ double p[] = {12};
+ P pa(b, b, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10};
+ double p[] = {12};
+ P pa(b, b+1, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 0);
+ assert(iv[1] == 1);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1);
+ assert(dn[1] == 1);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 15};
+ double p[] = {12, 12};
+ P pa(b, b+2, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 2);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 2);
+ assert(dn[0] == 1/5.);
+ assert(dn[1] == 1/5.);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 15, 16};
+ double p[] = {.25, .75, .25};
+ P pa(b, b+3, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 3);
+ assert(iv[0] == 10);
+ assert(iv[1] == 15);
+ assert(iv[2] == 16);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 3);
+ assert(dn[0] == .25/3);
+ assert(dn[1] == .75/3);
+ assert(dn[2] == .25/3);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {0, 1, 1, 0};
+ P pa(b, b+4, p);
+ std::vector<double> iv = pa.intervals();
+ assert(iv.size() == 4);
+ assert(iv[0] == 10);
+ assert(iv[1] == 14);
+ assert(iv[2] == 16);
+ assert(iv[3] == 17);
+ std::vector<double> dn = pa.densities();
+ assert(dn.size() == 4);
+ assert(dn[0] == 0);
+ assert(dn[1] == 1/4.5);
+ assert(dn[2] == 1/4.5);
+ assert(dn[3] == 0);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_eq.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_eq.pass.cpp
new file mode 100644
index 00000000000..1adffc8ca86
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_eq.pass.cpp
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ P p1(b, b+4, p);
+ P p2(b, b+4, p);
+ assert(p1 == p2);
+ }
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ P p1(b, b+3, p);
+ P p2(b, b+4, p);
+ assert(p1 != p2);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_types.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_types.pass.cpp
new file mode 100644
index 00000000000..cea1e3dffd3
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/param_types.pass.cpp
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type param_type;
+ typedef param_type::distribution_type distribution_type;
+ static_assert((std::is_same<D, distribution_type>::value), "");
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/set_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/set_param.pass.cpp
new file mode 100644
index 00000000000..e85a2f0ce4c
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/set_param.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+
+// void param(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::param_type P;
+ double b[] = {10, 14, 16, 17};
+ double p[] = {25, 62.5, 12.5, 0};
+ P pa(b, b+4, p);
+ D d;
+ d.param(pa);
+ assert(d.param() == pa);
+ }
+}
diff --git a/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/types.pass.cpp b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/types.pass.cpp
new file mode 100644
index 00000000000..a3421298787
--- /dev/null
+++ b/libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.plinear/types.pass.cpp
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class piecewise_linear_distribution
+// {
+// typedef bool result_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::piecewise_linear_distribution<> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, double>::value), "");
+ }
+ {
+ typedef std::piecewise_linear_distribution<float> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, float>::value), "");
+ }
+}
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