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/erase_range.pass.cpp

@@ -0,0 +1,93 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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 erase(const_iterator first, const_iterator last)
+
+#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]));
+        C::const_iterator i = c.find(2);
+        C::const_iterator j = next(i);
+        C::iterator k = c.erase(i, i);
+        assert(k == i);
+        assert(c.size() == 4);
+        assert(c.count(1) == 1);
+        assert(c.count(2) == 1);
+        assert(c.count(3) == 1);
+        assert(c.count(4) == 1);
+
+        k = c.erase(i, j);
+        assert(c.size() == 3);
+        assert(c.count(1) == 1);
+        assert(c.count(3) == 1);
+        assert(c.count(4) == 1);
+
+        k = c.erase(c.cbegin(), c.cend());
+        assert(c.size() == 0);
+        assert(k == c.end());
+    }
+#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]));
+        C::const_iterator i = c.find(2);
+        C::const_iterator j = next(i);
+        C::iterator k = c.erase(i, i);
+        assert(k == i);
+        assert(c.size() == 4);
+        assert(c.count(1) == 1);
+        assert(c.count(2) == 1);
+        assert(c.count(3) == 1);
+        assert(c.count(4) == 1);
+
+        k = c.erase(i, j);
+        assert(c.size() == 3);
+        assert(c.count(1) == 1);
+        assert(c.count(3) == 1);
+        assert(c.count(4) == 1);
+
+        k = c.erase(c.cbegin(), c.cend());
+        assert(c.size() == 0);
+        assert(k == c.end());
+    }
+#endif
+}