1 files changed, 37 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/bind/is_placeholder_v.cc b/libstdc++-v3/testsuite/20_util/bind/is_placeholder_v.cc
new file mode 100644
index 00000000000..0499d520591
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/bind/is_placeholder_v.cc
@@ -0,0 +1,37 @@
+// { dg-options "-std=gnu++17" }
+// { dg-do compile }
+
+// Copyright (C) 2016 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a moved_to of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <functional>
+
+struct X
+{
+  int operator()() const { return 0; }
+  int operator()() volatile { return 1; }
+  int operator()() const volatile { return 2; }
+  void operator()() { };
+};
+
+static_assert( std::is_placeholder<decltype(std::placeholders::_1)>::value
+	       == std::is_placeholder_v<decltype(std::placeholders::_1)>);
+
+const auto b0 = std::bind(X());
+static_assert( std::is_bind_expression<decltype(b0)>::value
+	       == std::is_bind_expression_v<decltype(b0)>);
+