1 files changed, 92 insertions, 0 deletions
diff --git a/libcxx/test/containers/sequences/dynarray/dynarray.overview/at.pass.cpp b/libcxx/test/containers/sequences/dynarray/dynarray.overview/at.pass.cpp
new file mode 100644
index 00000000000..dca4ff80ce6
--- /dev/null
+++ b/libcxx/test/containers/sequences/dynarray/dynarray.overview/at.pass.cpp
@@ -0,0 +1,92 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// dynarray.overview
+
+// const_reference at(size_type n) const;
+//       reference at(size_type n);
+  
+#include <__config>
+
+#if _LIBCPP_STD_VER > 11
+
+#include <dynarray>
+#include <cassert>
+
+#include <algorithm>
+#include <complex>
+#include <string>
+
+template <class T>
+void dyn_at_fail ( std::dynarray<T> &dyn, size_t sz ) {
+    try { dyn.at (sz); }
+    catch (const std::out_of_range &) { return; }
+    assert ( false );
+    }
+
+template <class T>
+void dyn_at_fail_const ( const std::dynarray<T> &dyn, size_t sz ) {
+    try { dyn.at (sz); }
+    catch (const std::out_of_range &) { return; }
+    assert ( false );
+    }
+
+
+template <class T>
+void dyn_test_const ( const std::dynarray<T> &dyn, const std::initializer_list<T> &vals ) {
+    const T *data = dyn.data ();
+    auto it = vals.begin ();
+    for ( size_t i = 0; i < dyn.size(); ++i, ++it ) {
+        assert ( data + i == &dyn.at(i));
+        assert ( *it == dyn.at(i));
+        }
+
+    dyn_at_fail_const ( dyn, dyn.size ());
+    dyn_at_fail_const ( dyn, 2*dyn.size ());
+    dyn_at_fail_const ( dyn, size_t (-1));
+    }
+
+template <class T>
+void dyn_test ( std::dynarray<T> &dyn, const std::initializer_list<T> &vals ) {
+    T *data = dyn.data ();
+    auto it = vals.begin ();
+    for ( size_t i = 0; i < dyn.size(); ++i, ++it ) {
+        assert ( data + i == &dyn.at(i));
+        assert ( *it == dyn.at(i));
+        }
+
+    dyn_at_fail ( dyn, dyn.size ());
+    dyn_at_fail ( dyn, 2*dyn.size ());
+    dyn_at_fail ( dyn, size_t (-1));
+    }
+
+
+template <class T>
+void test ( std::initializer_list<T> vals ) {
+    typedef std::dynarray<T> dynA;
+    
+    dynA d1 ( vals );
+    dyn_test ( d1, vals );
+    dyn_test_const ( d1, vals );
+    }
+
+int main()
+{
+    test ( { 1, 1, 2, 3, 5, 8 } );
+    test ( { 1., 1., 2., 3., 5., 8. } );
+    test ( { std::string("1"), std::string("1"), std::string("2"), std::string("3"), 
+                std::string("5"), std::string("8")} );
+
+    test<int> ( {} );
+    test<std::complex<double>> ( {} );
+    test<std::string> ( {} );
+}
+#else
+int main() {}
+#endif