1 files changed, 105 insertions, 0 deletions
diff --git a/libcxx/test/std/containers/associative/map/map.access/index_key.pass.cpp b/libcxx/test/std/containers/associative/map/map.access/index_key.pass.cpp
new file mode 100644
index 00000000000..ab1144c60af
--- /dev/null
+++ b/libcxx/test/std/containers/associative/map/map.access/index_key.pass.cpp
@@ -0,0 +1,105 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <map>
+
+// class map
+
+// mapped_type& operator[](const key_type& k);
+
+#include <map>
+#include <cassert>
+
+#include "min_allocator.h"
+#include "private_constructor.hpp"
+
+int main()
+{
+    {
+    typedef std::pair<const int, double> V;
+    V ar[] =
+    {
+        V(1, 1.5),
+        V(2, 2.5),
+        V(3, 3.5),
+        V(4, 4.5),
+        V(5, 5.5),
+        V(7, 7.5),
+        V(8, 8.5),
+    };
+    std::map<int, double> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
+    assert(m.size() == 7);
+    assert(m[1] == 1.5);
+    assert(m.size() == 7);
+    m[1] = -1.5;
+    assert(m[1] == -1.5);
+    assert(m.size() == 7);
+    assert(m[6] == 0);
+    assert(m.size() == 8);
+    m[6] = 6.5;
+    assert(m[6] == 6.5);
+    assert(m.size() == 8);
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef std::pair<const int, double> V;
+    V ar[] =
+    {
+        V(1, 1.5),
+        V(2, 2.5),
+        V(3, 3.5),
+        V(4, 4.5),
+        V(5, 5.5),
+        V(7, 7.5),
+        V(8, 8.5),
+    };
+    std::map<int, double, std::less<int>, min_allocator<V>> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
+    assert(m.size() == 7);
+    assert(m[1] == 1.5);
+    assert(m.size() == 7);
+    const int i = 1;
+    m[i] = -1.5;
+    assert(m[1] == -1.5);
+    assert(m.size() == 7);
+    assert(m[6] == 0);
+    assert(m.size() == 8);
+    m[6] = 6.5;
+    assert(m[6] == 6.5);
+    assert(m.size() == 8);
+    }
+#endif
+#if _LIBCPP_STD_VER > 11
+    {
+    typedef std::pair<const int, double> V;
+    V ar[] =
+    {
+        V(1, 1.5),
+        V(2, 2.5),
+        V(3, 3.5),
+        V(4, 4.5),
+        V(5, 5.5),
+        V(7, 7.5),
+        V(8, 8.5),
+    };
+    std::map<int, double, std::less<>> m(ar, ar+sizeof(ar)/sizeof(ar[0]));
+
+    assert(m.size() == 7);
+    assert(m[1] == 1.5);
+    assert(m.size() == 7);
+    m[1] = -1.5;
+    assert(m[1] == -1.5);
+    assert(m.size() == 7);
+    assert(m[6] == 0);
+    assert(m.size() == 8);
+    m[6] = 6.5;
+    assert(m[6] == 6.5);
+    assert(m.size() == 8);
+    }
+#endif
+}