libstdc++-v3/testsuite/20_util/reference_wrapper/invoke-2.cc

   1 // { dg-options "-std=gnu++0x" }
   2 // { dg-do compile}
   3 // Copyright (C) 2011-2013 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 20.6.4 function object return types [func.ret]
  21 #include <functional>
  22
  23 struct X
  24 {
  25     int f(int) { return 0; }
  26     int i;
  27 };
  28
  29 void test01()
  30 {
  31   typedef int (X::*mfp)(int);
  32   typedef int X::*mp;
  33   mfp m = &X::f;
  34   mp m2 = &X::i;
  35   X x = { };
  36   std::ref(m)(x, 1);
  37   std::ref(m)(&x, 1);
  38   int& i1 __attribute__((unused)) = std::ref(m2)(x);
  39   int& i2 __attribute__((unused)) = std::ref(m2)(&x);
  40 }
  41
  42 int main()
  43 {
  44   test01();
  45   return 0;
  46 }