Add tests to ensure that string/vector/array have contiguous iterators - which they did. Mark N4284 as complete

llvm-svn: 238233

1 files changed, 52 insertions, 0 deletions

diff --git a/libcxx/test/std/containers/sequences/vector/contiguous.pass.cpp b/libcxx/test/std/containers/sequences/vector/contiguous.pass.cpp
new file mode 100644
index 00000000000..f685986cf91
--- /dev/null
+++ b/libcxx/test/std/containers/sequences/vector/contiguous.pass.cpp
@@ -0,0 +1,52 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <vector>
+
+// An vector is a contiguous container
+
+#include <vector>
+#include <cassert>
+
+#include "test_allocator.h"
+#include "min_allocator.h"
+
+template <class C>
+void test_contiguous ( const C &c )
+{
+    for ( size_t i = 0; i < c.size(); ++i )
+        assert ( *(c.begin() + i) == *(std::addressof(*c.begin()) + i));
+}
+
+int main()
+{
+    {
+    typedef int T;
+    typedef std::vector<T> C;
+    test_contiguous(C());
+    test_contiguous(C(3, 5));
+    }
+
+    {
+    typedef double T;
+    typedef test_allocator<T> A;
+    typedef std::vector<T, A> C;
+    test_contiguous(C(A(3)));
+    test_contiguous(C(7, 9.0, A(5)));
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef double T;
+    typedef min_allocator<TW> A;
+    typedef std::vector<T, A> C;
+    test_contiguous(S(A{}));
+    test_contiguous(S(9, 11.0, A{}));
+    }
+#endif
+}