1 files changed, 52 insertions, 0 deletions
diff --git a/libcxx/test/std/localization/locales/locale.global.templates/use_facet.pass.cpp b/libcxx/test/std/localization/locales/locale.global.templates/use_facet.pass.cpp
new file mode 100644
index 00000000000..a40a2d2d883
--- /dev/null
+++ b/libcxx/test/std/localization/locales/locale.global.templates/use_facet.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.
+//
+//===----------------------------------------------------------------------===//
+
+// <locale>
+
+// template <class Facet> const Facet& use_facet(const locale& loc);
+
+#include <locale>
+#include <cassert>
+
+int facet_count = 0;
+
+struct my_facet
+    : public std::locale::facet
+{
+    static std::locale::id id;
+
+    bool im_alive;
+
+    my_facet() : im_alive(true) {++facet_count;}
+    ~my_facet() {im_alive = false; --facet_count;}
+};
+
+std::locale::id my_facet::id;
+
+int main()
+{
+    try
+    {
+        const my_facet& f = std::use_facet<my_facet>(std::locale());
+        assert(false);
+    }
+    catch (std::bad_cast&)
+    {
+    }
+    const my_facet* fp = 0;
+    {
+        std::locale loc(std::locale(), new my_facet);
+        const my_facet& f = std::use_facet<my_facet>(loc);
+        assert(f.im_alive);
+        fp = &f;
+        assert(fp->im_alive);
+        assert(facet_count == 1);
+    }
+    assert(facet_count == 0);
+}