1 files changed, 134 insertions, 0 deletions
diff --git a/libcxx/test/std/algorithms/alg.modifying.operations/alg.rotate/rotate_copy.pass.cpp b/libcxx/test/std/algorithms/alg.modifying.operations/alg.rotate/rotate_copy.pass.cpp
new file mode 100644
index 00000000000..f2ad535a2f9
--- /dev/null
+++ b/libcxx/test/std/algorithms/alg.modifying.operations/alg.rotate/rotate_copy.pass.cpp
@@ -0,0 +1,134 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <algorithm>
+
+// template<ForwardIterator InIter, OutputIterator<auto, InIter::reference> OutIter>
+//   OutIter
+//   rotate_copy(InIter first, InIter middle, InIter last, OutIter result);
+
+#include <algorithm>
+#include <cassert>
+
+#include "test_iterators.h"
+
+template <class InIter, class OutIter>
+void
+test()
+{
+    int ia[] = {0, 1, 2, 3};
+    const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+    int ib[sa] = {0};
+
+    OutIter r = std::rotate_copy(InIter(ia), InIter(ia), InIter(ia), OutIter(ib));
+    assert(base(r) == ib);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia), InIter(ia+1), OutIter(ib));
+    assert(base(r) == ib+1);
+    assert(ib[0] == 0);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+1), InIter(ia+1), OutIter(ib));
+    assert(base(r) == ib+1);
+    assert(ib[0] == 0);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia), InIter(ia+2), OutIter(ib));
+    assert(base(r) == ib+2);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+1), InIter(ia+2), OutIter(ib));
+    assert(base(r) == ib+2);
+    assert(ib[0] == 1);
+    assert(ib[1] == 0);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+2), InIter(ia+2), OutIter(ib));
+    assert(base(r) == ib+2);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia), InIter(ia+3), OutIter(ib));
+    assert(base(r) == ib+3);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+    assert(ib[2] == 2);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+1), InIter(ia+3), OutIter(ib));
+    assert(base(r) == ib+3);
+    assert(ib[0] == 1);
+    assert(ib[1] == 2);
+    assert(ib[2] == 0);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+2), InIter(ia+3), OutIter(ib));
+    assert(base(r) == ib+3);
+    assert(ib[0] == 2);
+    assert(ib[1] == 0);
+    assert(ib[2] == 1);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+3), InIter(ia+3), OutIter(ib));
+    assert(base(r) == ib+3);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+    assert(ib[2] == 2);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia), InIter(ia+4), OutIter(ib));
+    assert(base(r) == ib+4);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+    assert(ib[2] == 2);
+    assert(ib[3] == 3);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+1), InIter(ia+4), OutIter(ib));
+    assert(base(r) == ib+4);
+    assert(ib[0] == 1);
+    assert(ib[1] == 2);
+    assert(ib[2] == 3);
+    assert(ib[3] == 0);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+2), InIter(ia+4), OutIter(ib));
+    assert(base(r) == ib+4);
+    assert(ib[0] == 2);
+    assert(ib[1] == 3);
+    assert(ib[2] == 0);
+    assert(ib[3] == 1);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+3), InIter(ia+4), OutIter(ib));
+    assert(base(r) == ib+4);
+    assert(ib[0] == 3);
+    assert(ib[1] == 0);
+    assert(ib[2] == 1);
+    assert(ib[3] == 2);
+
+    r = std::rotate_copy(InIter(ia), InIter(ia+4), InIter(ia+4), OutIter(ib));
+    assert(base(r) == ib+4);
+    assert(ib[0] == 0);
+    assert(ib[1] == 1);
+    assert(ib[2] == 2);
+    assert(ib[3] == 3);
+}
+
+int main()
+{
+    test<bidirectional_iterator<const int*>, output_iterator<int*> >();
+    test<bidirectional_iterator<const int*>, forward_iterator<int*> >();
+    test<bidirectional_iterator<const int*>, bidirectional_iterator<int*> >();
+    test<bidirectional_iterator<const int*>, random_access_iterator<int*> >();
+    test<bidirectional_iterator<const int*>, int*>();
+
+    test<random_access_iterator<const int*>, output_iterator<int*> >();
+    test<random_access_iterator<const int*>, forward_iterator<int*> >();
+    test<random_access_iterator<const int*>, bidirectional_iterator<int*> >();
+    test<random_access_iterator<const int*>, random_access_iterator<int*> >();
+    test<random_access_iterator<const int*>, int*>();
+
+    test<const int*, output_iterator<int*> >();
+    test<const int*, forward_iterator<int*> >();
+    test<const int*, bidirectional_iterator<int*> >();
+    test<const int*, random_access_iterator<int*> >();
+    test<const int*, int*>();
+}