Implement LWG2733: [fund.ts.v2] gcd / lcm and bool. We already did tbis for C++17, so replicate the changes in experimental.

llvm-svn: 292962

9 files changed, 204 insertions, 0 deletions

diff --git a/libcxx/include/experimental/numeric b/libcxx/include/experimental/numeric
index 32b19a46635..832055365f9 100644
--- a/libcxx/include/experimental/numeric
+++ b/libcxx/include/experimental/numeric
@@ -75,6 +75,8 @@ common_type_t<_Tp,_Up>
 gcd(_Tp __m, _Up __n)
 {
     static_assert((is_integral<_Tp>::value && is_integral<_Up>::value), "Arguments to gcd must be integer types");
+    static_assert((!is_same<typename remove_cv<_Tp>::type, bool>::value), "First argument to gcd cannot be bool" );
+    static_assert((!is_same<typename remove_cv<_Up>::type, bool>::value), "Second argument to gcd cannot be bool" );
     using _Rp = common_type_t<_Tp,_Up>;
     using _Wp = make_unsigned_t<_Rp>;
     return static_cast<_Rp>(__gcd(static_cast<_Wp>(__abs<_Tp>()(__m)),
@@ -87,6 +89,8 @@ common_type_t<_Tp,_Up>
 lcm(_Tp __m, _Up __n)
 {
     static_assert((is_integral<_Tp>::value && is_integral<_Up>::value), "Arguments to lcm must be integer types");
+    static_assert((!is_same<typename remove_cv<_Tp>::type, bool>::value), "First argument to lcm cannot be bool" );
+    static_assert((!is_same<typename remove_cv<_Up>::type, bool>::value), "Second argument to lcm cannot be bool" );
     if (__m == 0 || __n == 0)
         return 0;
 
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool1.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool1.fail.cpp
new file mode 100644
index 00000000000..c8d6c5367d7
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool1.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> gcd(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::gcd(false, 4);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool2.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool2.fail.cpp
new file mode 100644
index 00000000000..a3a2206fba6
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool2.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> gcd(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::gcd(2, true);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool3.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool3.fail.cpp
new file mode 100644
index 00000000000..1f04580ddab
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool3.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> gcd(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::gcd<volatile bool, int>(false, 4);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool4.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool4.fail.cpp
new file mode 100644
index 00000000000..1f0e8a2b3a2
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.gcd/gcd.bool4.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> gcd(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::gcd<int, const bool>(2, true);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool1.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool1.fail.cpp
new file mode 100644
index 00000000000..e4c2ed8bf53
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool1.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> lcm(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::lcm(false, 4);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool2.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool2.fail.cpp
new file mode 100644
index 00000000000..097b23eae6e
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool2.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> lcm(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::lcm(2, true);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool3.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool3.fail.cpp
new file mode 100644
index 00000000000..d5e6300818c
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool3.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> lcm(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::lcm<volatile bool, int>(false, 4);
+}
diff --git a/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool4.fail.cpp b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool4.fail.cpp
new file mode 100644
index 00000000000..d88c490d64b
--- /dev/null
+++ b/libcxx/test/std/experimental/numeric/numeric.ops/numeric.ops.lcm/lcm.bool4.fail.cpp
@@ -0,0 +1,25 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+//
+// UNSUPPORTED: c++98, c++03, c++11
+// <numeric>
+
+// template<class _M, class _N>
+// constexpr common_type_t<_M,_N> lcm(_M __m, _N __n)
+
+// Remarks: If either M or N is not an integer type,
+// or if either is (a possibly cv-qualified) bool, the program is ill-formed.
+
+#include <experimental/numeric>
+
+
+int main()
+{
+    std::experimental::lcm<int, const bool>(2, true);
+}