1 files changed, 325 insertions, 0 deletions

diff --git a/libcxx/test/algorithms/alg.nonmodifying/alg.is_permutation/is_permutation.pass.cpp b/libcxx/test/algorithms/alg.nonmodifying/alg.is_permutation/is_permutation.pass.cpp
new file mode 100644
index 00000000000..fec64298931
--- /dev/null
+++ b/libcxx/test/algorithms/alg.nonmodifying/alg.is_permutation/is_permutation.pass.cpp
@@ -0,0 +1,325 @@
+//===----------------------------------------------------------------------===//
+//
+// ΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚΚThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <algorithm>
+
+// template<class ForwardIterator1, class ForwardIterator2>
+//   bool
+//   is_permutation(ForwardIterator1 first1, ForwardIterator1 last1,
+//                  ForwardIterator2 first2);
+
+#include <algorithm>
+#include <cassert>
+
+#include "../../iterators.h"
+
+int main()
+{
+    {
+        const int ia[] = {0};
+        const int ib[] = {0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + 0),
+                                   forward_iterator<const int*>(ib)) == true);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0};
+        const int ib[] = {1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+
+    {
+        const int ia[] = {0, 0};
+        const int ib[] = {0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 0};
+        const int ib[] = {0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0};
+        const int ib[] = {1, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0};
+        const int ib[] = {1, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 1};
+        const int ib[] = {0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 1};
+        const int ib[] = {0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1};
+        const int ib[] = {1, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1};
+        const int ib[] = {1, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {1, 0};
+        const int ib[] = {0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {1, 0};
+        const int ib[] = {0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {1, 0};
+        const int ib[] = {1, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {1, 0};
+        const int ib[] = {1, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {1, 1};
+        const int ib[] = {0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {1, 1};
+        const int ib[] = {0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {1, 1};
+        const int ib[] = {1, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {1, 1};
+        const int ib[] = {1, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 0, 2};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 1, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 1, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 1, 2};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 2, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 2, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 0};
+        const int ib[] = {1, 2, 2};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 1};
+        const int ib[] = {1, 0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 0, 1};
+        const int ib[] = {1, 0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 1, 2};
+        const int ib[] = {1, 0, 2};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1, 2};
+        const int ib[] = {1, 2, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1, 2};
+        const int ib[] = {2, 1, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1, 2};
+        const int ib[] = {2, 0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 0, 1};
+        const int ib[] = {1, 0, 1};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+    {
+        const int ia[] = {0, 0, 1};
+        const int ib[] = {1, 0, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1, 2, 3, 0, 5, 6, 2, 4, 4};
+        const int ib[] = {4, 2, 3, 0, 1, 4, 0, 5, 6, 2};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == true);
+    }
+    {
+        const int ia[] = {0, 1, 2, 3, 0, 5, 6, 2, 4, 4};
+        const int ib[] = {4, 2, 3, 0, 1, 4, 0, 5, 6, 0};
+        const unsigned sa = sizeof(ia)/sizeof(ia[0]);
+        assert(std::is_permutation(forward_iterator<const int*>(ia),
+                                   forward_iterator<const int*>(ia + sa),
+                                   forward_iterator<const int*>(ib)) == false);
+    }
+}