libcxx initial import

llvm-svn: 103490

1 files changed, 439 insertions, 0 deletions

diff --git a/libcxx/test/algorithms/alg.modifying.operations/alg.rotate/rotate.pass.cpp b/libcxx/test/algorithms/alg.modifying.operations/alg.rotate/rotate.pass.cpp
new file mode 100644
index 00000000000..5af9f75043e
--- /dev/null
+++ b/libcxx/test/algorithms/alg.modifying.operations/alg.rotate/rotate.pass.cpp
@@ -0,0 +1,439 @@
+//===----------------------------------------------------------------------===//
+//
+// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <algorithm>
+
+// template<ShuffleIterator Iter> 
+//   Iter
+//   rotate(Iter first, Iter middle, Iter last);
+
+#include <algorithm>
+#include <cassert>
+#ifdef _LIBCPP_MOVE
+#include <memory>
+#endif
+
+#include "../../iterators.h"
+
+template <class Iter>
+void
+test()
+{
+    int ia[] = {0};
+    const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+    Iter r = std::rotate(Iter(ia), Iter(ia), Iter(ia));
+    assert(base(r) == ia);
+    assert(ia[0] == 0);
+    r = std::rotate(Iter(ia), Iter(ia), Iter(ia+sa));
+    assert(base(r) == ia+sa);
+    assert(ia[0] == 0);
+    r = std::rotate(Iter(ia), Iter(ia+sa), Iter(ia+sa));
+    assert(base(r) == ia);
+    assert(ia[0] == 0);
+
+    int ib[] = {0, 1};
+    const unsigned sb = sizeof(ib)/sizeof(ib[0]);
+    r = std::rotate(Iter(ib), Iter(ib), Iter(ib+sb));
+    assert(base(r) == ib+sb);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+    r = std::rotate(Iter(ib), Iter(ib+1), Iter(ib+sb));
+    assert(base(r) == ib+1);
+    assert(ib[0] == 1);
+    assert(ib[1] == 0);
+    r = std::rotate(Iter(ib), Iter(ib+sb), Iter(ib+sb));
+    assert(base(r) == ib);
+    assert(ib[0] == 1);
+    assert(ib[1] == 0);
+
+    int ic[] = {0, 1, 2};
+    const unsigned sc = sizeof(ic)/sizeof(ic[0]);
+    r = std::rotate(Iter(ic), Iter(ic), Iter(ic+sc));
+    assert(base(r) == ic+sc);
+    assert(ic[0] == 0);
+    assert(ic[1] == 1);
+    assert(ic[2] == 2);
+    r = std::rotate(Iter(ic), Iter(ic+1), Iter(ic+sc));
+    assert(base(r) == ic+2);
+    assert(ic[0] == 1);
+    assert(ic[1] == 2);
+    assert(ic[2] == 0);
+    r = std::rotate(Iter(ic), Iter(ic+2), Iter(ic+sc));
+    assert(base(r) == ic+1);
+    assert(ic[0] == 0);
+    assert(ic[1] == 1);
+    assert(ic[2] == 2);
+    r = std::rotate(Iter(ic), Iter(ic+sc), Iter(ic+sc));
+    assert(base(r) == ic);
+    assert(ic[0] == 0);
+    assert(ic[1] == 1);
+    assert(ic[2] == 2);
+
+    int id[] = {0, 1, 2, 3};
+    const unsigned sd = sizeof(id)/sizeof(id[0]);
+    r = std::rotate(Iter(id), Iter(id), Iter(id+sd));
+    assert(base(r) == id+sd);
+    assert(id[0] == 0);
+    assert(id[1] == 1);
+    assert(id[2] == 2);
+    assert(id[3] == 3);
+    r = std::rotate(Iter(id), Iter(id+1), Iter(id+sd));
+    assert(base(r) == id+3);
+    assert(id[0] == 1);
+    assert(id[1] == 2);
+    assert(id[2] == 3);
+    assert(id[3] == 0);
+    r = std::rotate(Iter(id), Iter(id+2), Iter(id+sd));
+    assert(base(r) == id+2);
+    assert(id[0] == 3);
+    assert(id[1] == 0);
+    assert(id[2] == 1);
+    assert(id[3] == 2);
+    r = std::rotate(Iter(id), Iter(id+3), Iter(id+sd));
+    assert(base(r) == id+1);
+    assert(id[0] == 2);
+    assert(id[1] == 3);
+    assert(id[2] == 0);
+    assert(id[3] == 1);
+    r = std::rotate(Iter(id), Iter(id+sd), Iter(id+sd));
+    assert(base(r) == id);
+    assert(id[0] == 2);
+    assert(id[1] == 3);
+    assert(id[2] == 0);
+    assert(id[3] == 1);
+
+    int ie[] = {0, 1, 2, 3, 4};
+    const unsigned se = sizeof(ie)/sizeof(ie[0]);
+    r = std::rotate(Iter(ie), Iter(ie), Iter(ie+se));
+    assert(base(r) == ie+se);
+    assert(ie[0] == 0);
+    assert(ie[1] == 1);
+    assert(ie[2] == 2);
+    assert(ie[3] == 3);
+    assert(ie[4] == 4);
+    r = std::rotate(Iter(ie), Iter(ie+1), Iter(ie+se));
+    assert(base(r) == ie+4);
+    assert(ie[0] == 1);
+    assert(ie[1] == 2);
+    assert(ie[2] == 3);
+    assert(ie[3] == 4);
+    assert(ie[4] == 0);
+    r = std::rotate(Iter(ie), Iter(ie+2), Iter(ie+se));
+    assert(base(r) == ie+3);
+    assert(ie[0] == 3);
+    assert(ie[1] == 4);
+    assert(ie[2] == 0);
+    assert(ie[3] == 1);
+    assert(ie[4] == 2);
+    r = std::rotate(Iter(ie), Iter(ie+3), Iter(ie+se));
+    assert(base(r) == ie+2);
+    assert(ie[0] == 1);
+    assert(ie[1] == 2);
+    assert(ie[2] == 3);
+    assert(ie[3] == 4);
+    assert(ie[4] == 0);
+    r = std::rotate(Iter(ie), Iter(ie+4), Iter(ie+se));
+    assert(base(r) == ie+1);
+    assert(ie[0] == 0);
+    assert(ie[1] == 1);
+    assert(ie[2] == 2);
+    assert(ie[3] == 3);
+    assert(ie[4] == 4);
+    r = std::rotate(Iter(ie), Iter(ie+se), Iter(ie+se));
+    assert(base(r) == ie);
+    assert(ie[0] == 0);
+    assert(ie[1] == 1);
+    assert(ie[2] == 2);
+    assert(ie[3] == 3);
+    assert(ie[4] == 4);
+
+    int ig[] = {0, 1, 2, 3, 4, 5};
+    const unsigned sg = sizeof(ig)/sizeof(ig[0]);
+    r = std::rotate(Iter(ig), Iter(ig), Iter(ig+sg));
+    assert(base(r) == ig+sg);
+    assert(ig[0] == 0);
+    assert(ig[1] == 1);
+    assert(ig[2] == 2);
+    assert(ig[3] == 3);
+    assert(ig[4] == 4);
+    assert(ig[5] == 5);
+    r = std::rotate(Iter(ig), Iter(ig+1), Iter(ig+sg));
+    assert(base(r) == ig+5);
+    assert(ig[0] == 1);
+    assert(ig[1] == 2);
+    assert(ig[2] == 3);
+    assert(ig[3] == 4);
+    assert(ig[4] == 5);
+    assert(ig[5] == 0);
+    r = std::rotate(Iter(ig), Iter(ig+2), Iter(ig+sg));
+    assert(base(r) == ig+4);
+    assert(ig[0] == 3);
+    assert(ig[1] == 4);
+    assert(ig[2] == 5);
+    assert(ig[3] == 0);
+    assert(ig[4] == 1);
+    assert(ig[5] == 2);
+    r = std::rotate(Iter(ig), Iter(ig+3), Iter(ig+sg));
+    assert(base(r) == ig+3);
+    assert(ig[0] == 0);
+    assert(ig[1] == 1);
+    assert(ig[2] == 2);
+    assert(ig[3] == 3);
+    assert(ig[4] == 4);
+    assert(ig[5] == 5);
+    r = std::rotate(Iter(ig), Iter(ig+4), Iter(ig+sg));
+    assert(base(r) == ig+2);
+    assert(ig[0] == 4);
+    assert(ig[1] == 5);
+    assert(ig[2] == 0);
+    assert(ig[3] == 1);
+    assert(ig[4] == 2);
+    assert(ig[5] == 3);
+    r = std::rotate(Iter(ig), Iter(ig+5), Iter(ig+sg));
+    assert(base(r) == ig+1);
+    assert(ig[0] == 3);
+    assert(ig[1] == 4);
+    assert(ig[2] == 5);
+    assert(ig[3] == 0);
+    assert(ig[4] == 1);
+    assert(ig[5] == 2);
+    r = std::rotate(Iter(ig), Iter(ig+sg), Iter(ig+sg));
+    assert(base(r) == ig);
+    assert(ig[0] == 3);
+    assert(ig[1] == 4);
+    assert(ig[2] == 5);
+    assert(ig[3] == 0);
+    assert(ig[4] == 1);
+    assert(ig[5] == 2);
+}
+
+#ifdef _LIBCPP_MOVE
+
+template <class Iter>
+void
+test1()
+{
+    std::unique_ptr<int> ia[1];
+    const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+    for (int i = 0; i < sa; ++i)
+        ia[i].reset(new int(i));
+    Iter r = std::rotate(Iter(ia), Iter(ia), Iter(ia));
+    assert(base(r) == ia);
+    assert(*ia[0] == 0);
+    r = std::rotate(Iter(ia), Iter(ia), Iter(ia+sa));
+    assert(base(r) == ia+sa);
+    assert(*ia[0] == 0);
+    r = std::rotate(Iter(ia), Iter(ia+sa), Iter(ia+sa));
+    assert(base(r) == ia);
+    assert(*ia[0] == 0);
+
+    std::unique_ptr<int> ib[2];
+    const unsigned sb = sizeof(ib)/sizeof(ib[0]);
+    for (int i = 0; i < sb; ++i)
+        ib[i].reset(new int(i));
+    r = std::rotate(Iter(ib), Iter(ib), Iter(ib+sb));
+    assert(base(r) == ib+sb);
+    assert(*ib[0] == 0);
+    assert(*ib[1] == 1);
+    r = std::rotate(Iter(ib), Iter(ib+1), Iter(ib+sb));
+    assert(base(r) == ib+1);
+    assert(*ib[0] == 1);
+    assert(*ib[1] == 0);
+    r = std::rotate(Iter(ib), Iter(ib+sb), Iter(ib+sb));
+    assert(base(r) == ib);
+    assert(*ib[0] == 1);
+    assert(*ib[1] == 0);
+
+    std::unique_ptr<int> ic[3];
+    const unsigned sc = sizeof(ic)/sizeof(ic[0]);
+    for (int i = 0; i < sc; ++i)
+        ic[i].reset(new int(i));
+    r = std::rotate(Iter(ic), Iter(ic), Iter(ic+sc));
+    assert(base(r) == ic+sc);
+    assert(*ic[0] == 0);
+    assert(*ic[1] == 1);
+    assert(*ic[2] == 2);
+    r = std::rotate(Iter(ic), Iter(ic+1), Iter(ic+sc));
+    assert(base(r) == ic+2);
+    assert(*ic[0] == 1);
+    assert(*ic[1] == 2);
+    assert(*ic[2] == 0);
+    r = std::rotate(Iter(ic), Iter(ic+2), Iter(ic+sc));
+    assert(base(r) == ic+1);
+    assert(*ic[0] == 0);
+    assert(*ic[1] == 1);
+    assert(*ic[2] == 2);
+    r = std::rotate(Iter(ic), Iter(ic+sc), Iter(ic+sc));
+    assert(base(r) == ic);
+    assert(*ic[0] == 0);
+    assert(*ic[1] == 1);
+    assert(*ic[2] == 2);
+
+    std::unique_ptr<int> id[4];
+    const unsigned sd = sizeof(id)/sizeof(id[0]);
+    for (int i = 0; i < sd; ++i)
+        id[i].reset(new int(i));
+    r = std::rotate(Iter(id), Iter(id), Iter(id+sd));
+    assert(base(r) == id+sd);
+    assert(*id[0] == 0);
+    assert(*id[1] == 1);
+    assert(*id[2] == 2);
+    assert(*id[3] == 3);
+    r = std::rotate(Iter(id), Iter(id+1), Iter(id+sd));
+    assert(base(r) == id+3);
+    assert(*id[0] == 1);
+    assert(*id[1] == 2);
+    assert(*id[2] == 3);
+    assert(*id[3] == 0);
+    r = std::rotate(Iter(id), Iter(id+2), Iter(id+sd));
+    assert(base(r) == id+2);
+    assert(*id[0] == 3);
+    assert(*id[1] == 0);
+    assert(*id[2] == 1);
+    assert(*id[3] == 2);
+    r = std::rotate(Iter(id), Iter(id+3), Iter(id+sd));
+    assert(base(r) == id+1);
+    assert(*id[0] == 2);
+    assert(*id[1] == 3);
+    assert(*id[2] == 0);
+    assert(*id[3] == 1);
+    r = std::rotate(Iter(id), Iter(id+sd), Iter(id+sd));
+    assert(base(r) == id);
+    assert(*id[0] == 2);
+    assert(*id[1] == 3);
+    assert(*id[2] == 0);
+    assert(*id[3] == 1);
+
+    std::unique_ptr<int> ie[5];
+    const unsigned se = sizeof(ie)/sizeof(ie[0]);
+    for (int i = 0; i < se; ++i)
+        ie[i].reset(new int(i));
+    r = std::rotate(Iter(ie), Iter(ie), Iter(ie+se));
+    assert(base(r) == ie+se);
+    assert(*ie[0] == 0);
+    assert(*ie[1] == 1);
+    assert(*ie[2] == 2);
+    assert(*ie[3] == 3);
+    assert(*ie[4] == 4);
+    r = std::rotate(Iter(ie), Iter(ie+1), Iter(ie+se));
+    assert(base(r) == ie+4);
+    assert(*ie[0] == 1);
+    assert(*ie[1] == 2);
+    assert(*ie[2] == 3);
+    assert(*ie[3] == 4);
+    assert(*ie[4] == 0);
+    r = std::rotate(Iter(ie), Iter(ie+2), Iter(ie+se));
+    assert(base(r) == ie+3);
+    assert(*ie[0] == 3);
+    assert(*ie[1] == 4);
+    assert(*ie[2] == 0);
+    assert(*ie[3] == 1);
+    assert(*ie[4] == 2);
+    r = std::rotate(Iter(ie), Iter(ie+3), Iter(ie+se));
+    assert(base(r) == ie+2);
+    assert(*ie[0] == 1);
+    assert(*ie[1] == 2);
+    assert(*ie[2] == 3);
+    assert(*ie[3] == 4);
+    assert(*ie[4] == 0);
+    r = std::rotate(Iter(ie), Iter(ie+4), Iter(ie+se));
+    assert(base(r) == ie+1);
+    assert(*ie[0] == 0);
+    assert(*ie[1] == 1);
+    assert(*ie[2] == 2);
+    assert(*ie[3] == 3);
+    assert(*ie[4] == 4);
+    r = std::rotate(Iter(ie), Iter(ie+se), Iter(ie+se));
+    assert(base(r) == ie);
+    assert(*ie[0] == 0);
+    assert(*ie[1] == 1);
+    assert(*ie[2] == 2);
+    assert(*ie[3] == 3);
+    assert(*ie[4] == 4);
+
+    std::unique_ptr<int> ig[6];
+    const unsigned sg = sizeof(ig)/sizeof(ig[0]);
+    for (int i = 0; i < sg; ++i)
+        ig[i].reset(new int(i));
+    r = std::rotate(Iter(ig), Iter(ig), Iter(ig+sg));
+    assert(base(r) == ig+sg);
+    assert(*ig[0] == 0);
+    assert(*ig[1] == 1);
+    assert(*ig[2] == 2);
+    assert(*ig[3] == 3);
+    assert(*ig[4] == 4);
+    assert(*ig[5] == 5);
+    r = std::rotate(Iter(ig), Iter(ig+1), Iter(ig+sg));
+    assert(base(r) == ig+5);
+    assert(*ig[0] == 1);
+    assert(*ig[1] == 2);
+    assert(*ig[2] == 3);
+    assert(*ig[3] == 4);
+    assert(*ig[4] == 5);
+    assert(*ig[5] == 0);
+    r = std::rotate(Iter(ig), Iter(ig+2), Iter(ig+sg));
+    assert(base(r) == ig+4);
+    assert(*ig[0] == 3);
+    assert(*ig[1] == 4);
+    assert(*ig[2] == 5);
+    assert(*ig[3] == 0);
+    assert(*ig[4] == 1);
+    assert(*ig[5] == 2);
+    r = std::rotate(Iter(ig), Iter(ig+3), Iter(ig+sg));
+    assert(base(r) == ig+3);
+    assert(*ig[0] == 0);
+    assert(*ig[1] == 1);
+    assert(*ig[2] == 2);
+    assert(*ig[3] == 3);
+    assert(*ig[4] == 4);
+    assert(*ig[5] == 5);
+    r = std::rotate(Iter(ig), Iter(ig+4), Iter(ig+sg));
+    assert(base(r) == ig+2);
+    assert(*ig[0] == 4);
+    assert(*ig[1] == 5);
+    assert(*ig[2] == 0);
+    assert(*ig[3] == 1);
+    assert(*ig[4] == 2);
+    assert(*ig[5] == 3);
+    r = std::rotate(Iter(ig), Iter(ig+5), Iter(ig+sg));
+    assert(base(r) == ig+1);
+    assert(*ig[0] == 3);
+    assert(*ig[1] == 4);
+    assert(*ig[2] == 5);
+    assert(*ig[3] == 0);
+    assert(*ig[4] == 1);
+    assert(*ig[5] == 2);
+    r = std::rotate(Iter(ig), Iter(ig+sg), Iter(ig+sg));
+    assert(base(r) == ig);
+    assert(*ig[0] == 3);
+    assert(*ig[1] == 4);
+    assert(*ig[2] == 5);
+    assert(*ig[3] == 0);
+    assert(*ig[4] == 1);
+    assert(*ig[5] == 2);
+}
+
+#endif
+
+int main()
+{
+    test<forward_iterator<int*> >();
+    test<bidirectional_iterator<int*> >();
+    test<random_access_iterator<int*> >();
+    test<int*>();
+
+#ifdef _LIBCPP_MOVE
+
+    test1<forward_iterator<std::unique_ptr<int>*> >();
+    test1<bidirectional_iterator<std::unique_ptr<int>*> >();
+    test1<random_access_iterator<std::unique_ptr<int>*> >();
+    test1<std::unique_ptr<int>*>();
+
+#endif
+}