Move test into test/std subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8

test/std/containers/unord/unord.set/iterators.pass.cpp

@@ -0,0 +1,127 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <unordered_set>
+
+// template <class Value, class Hash = hash<Value>, class Pred = equal_to<Value>,
+//           class Alloc = allocator<Value>>
+// class unordered_set
+
+// iterator       begin()        {return __table_.begin();}
+// iterator       end()          {return __table_.end();}
+// const_iterator begin()  const {return __table_.begin();}
+// const_iterator end()    const {return __table_.end();}
+// const_iterator cbegin() const {return __table_.begin();}
+// const_iterator cend()   const {return __table_.end();}
+
+#include <unordered_set>
+#include <cassert>
+
+#include "min_allocator.h"
+
+int main()
+{
+    {
+        typedef std::unordered_set<int> C;
+        typedef int P;
+        P a[] =
+        {
+            P(1),
+            P(2),
+            P(3),
+            P(4),
+            P(1),
+            P(2)
+        };
+        C c(a, a + sizeof(a)/sizeof(a[0]));
+        assert(c.bucket_count() >= 5);
+        assert(c.size() == 4);
+        assert(std::distance(c.begin(), c.end()) == c.size());
+        assert(std::distance(c.cbegin(), c.cend()) == c.size());
+        C::iterator i;
+    }
+    {
+        typedef std::unordered_set<int> C;
+        typedef int P;
+        P a[] =
+        {
+            P(1),
+            P(2),
+            P(3),
+            P(4),
+            P(1),
+            P(2)
+        };
+        const C c(a, a + sizeof(a)/sizeof(a[0]));
+        assert(c.bucket_count() >= 5);
+        assert(c.size() == 4);
+        assert(std::distance(c.begin(), c.end()) == c.size());
+        assert(std::distance(c.cbegin(), c.cend()) == c.size());
+        C::const_iterator i;
+    }
+#if __cplusplus >= 201103L
+    {
+        typedef std::unordered_set<int, std::hash<int>,
+                                      std::equal_to<int>, min_allocator<int>> C;
+        typedef int P;
+        P a[] =
+        {
+            P(1),
+            P(2),
+            P(3),
+            P(4),
+            P(1),
+            P(2)
+        };
+        C c(a, a + sizeof(a)/sizeof(a[0]));
+        assert(c.bucket_count() >= 5);
+        assert(c.size() == 4);
+        assert(std::distance(c.begin(), c.end()) == c.size());
+        assert(std::distance(c.cbegin(), c.cend()) == c.size());
+        C::iterator i;
+    }
+    {
+        typedef std::unordered_set<int, std::hash<int>,
+                                      std::equal_to<int>, min_allocator<int>> C;
+        typedef int P;
+        P a[] =
+        {
+            P(1),
+            P(2),
+            P(3),
+            P(4),
+            P(1),
+            P(2)
+        };
+        const C c(a, a + sizeof(a)/sizeof(a[0]));
+        assert(c.bucket_count() >= 5);
+        assert(c.size() == 4);
+        assert(std::distance(c.begin(), c.end()) == c.size());
+        assert(std::distance(c.cbegin(), c.cend()) == c.size());
+        C::const_iterator i;
+    }
+#endif
+#if _LIBCPP_STD_VER > 11
+    { // N3644 testing
+        typedef std::unordered_set<int> C;
+        C::iterator ii1{}, ii2{};
+        C::iterator ii4 = ii1;
+        C::const_iterator cii{};
+        assert ( ii1 == ii2 );
+        assert ( ii1 == ii4 );
+
+        assert (!(ii1 != ii2 ));
+
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
+    }
+#endif
+}