libstdc++-v3/testsuite/tr1/2_general_utilities/headers/functional/synopsis.cc

   1 // { dg-do compile }
   2
   3 // 2007-02-04  Benjamin Kosnik  <bkoz@redhat.com>
   4 //
   5 // Copyright (C) 2007-2023 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU General Public License
  19 // along with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <tr1/functional>
  23
  24 namespace std {
  25 namespace tr1 {
  26
  27   template <class T> class reference_wrapper;
  28   template <class T> reference_wrapper<T> ref(T&);
  29   template <class T> reference_wrapper<const T> cref(const T&);
  30   template <class T> reference_wrapper<T> ref(reference_wrapper<T>);
  31   template <class T> reference_wrapper<const T> cref(reference_wrapper<T>);
  32
  33 } // namespace tr1
  34 } // namespace std