PR libstdc++/45924

	* include/std/functional (_Bind_result::operator()): Do not expand
	template parameter pack in forward call.
	* testsuite/20_util/bind/45924.cc: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@165072 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/libstdc++-v3/include/std/functional b/libstdc++-v3/include/std/functional
index 33fe072..2dae72d 100644 (file)
--- a/libstdc++-v3/include/std/functional
+++ b/libstdc++-v3/include/std/functional
@@ -1332,7 +1332,7 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
         operator()(_Args&&... __args)
         {
           return this->__call<_Result>(
-              tuple<_Args...>(std::forward<_Args...>(__args)...),
+              tuple<_Args...>(std::forward<_Args>(__args)...),
               _Bound_indexes());
         }
 
@@ -1342,7 +1342,7 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
         operator()(_Args&&... __args) const
         {
           return this->__call<_Result>(
-              tuple<_Args...>(std::forward<_Args...>(__args)...),
+              tuple<_Args...>(std::forward<_Args>(__args)...),
               _Bound_indexes());
         }
 
@@ -1352,7 +1352,7 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
         operator()(_Args&&... __args) volatile
         {
           return this->__call<_Result>(
-              tuple<_Args...>(std::forward<_Args...>(__args)...),
+              tuple<_Args...>(std::forward<_Args>(__args)...),
               _Bound_indexes());
         }
 
@@ -1362,7 +1362,7 @@ _GLIBCXX_HAS_NESTED_TYPE(result_type)
         operator()(_Args&&... __args) const volatile
         {
           return this->__call<_Result>(
-              tuple<_Args...>(std::forward<_Args...>(__args)...),
+              tuple<_Args...>(std::forward<_Args>(__args)...),
               _Bound_indexes());
         }
     };

diff --git a/libstdc++-v3/testsuite/20_util/bind/45924.cc b/libstdc++-v3/testsuite/20_util/bind/45924.cc
new file mode 100644 (file)
index 0000000..27adb70
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/bind/45924.cc
@@ -0,0 +1,45 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2010 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 copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <functional>
+
+// PR libstdc++/45924
+
+struct f
+{
+  int operator()(int, int) const { return 0; }
+};
+
+void test01()
+{
+  int i = 0;
+  using namespace std::placeholders;
+  auto b = std::bind<int>(f(), _1, _2);
+  auto const bc(b);
+  b(i, i);
+  bc(i, i);
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
+