libstdc++-v3/testsuite/20_util/bind/cv_quals.cc

   1 // Copyright (C) 2010-2016 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 20.7.11 Function template bind
  19
  20 // { dg-do run { target c++11 } }
  21
  22 #include <functional>
  23 #include <testsuite_hooks.h>
  24
  25 // target must be invoked with cv-quals of call wrapper
  26
  27 struct X
  28 {
  29   int operator()() { return 0; }
  30   int operator()() const { return 1; }
  31   int operator()() volatile { return 2; }
  32   int operator()() const volatile { return 3; }
  33
  34   int operator()(int, int, int) { return 0; }
  35   int operator()(int, int, int) const { return 1; }
  36   int operator()(int, int, int) volatile { return 2; }
  37   int operator()(int, int, int) const volatile { return 3; }
  38 };
  39
  40 using std::placeholders::_1;
  41 using std::placeholders::_2;
  42
  43 void test01()
  44 {
  45   auto b0 = std::bind(X());
  46   VERIFY( b0() == 0 );
  47
  48   const auto b1 = std::bind(X());
  49   VERIFY( b1() == 1 );
  50
  51   volatile auto b2 = std::bind(X());
  52   VERIFY( b2() == 2 );
  53
  54   const volatile auto b3 = std::bind(X());
  55   VERIFY( b3() == 3 );
  56 }
  57
  58 void test02()
  59 {
  60   auto b0 = std::bind<int>(X());
  61   VERIFY( b0() == 0 );
  62
  63   const auto b1 = std::bind<int>(X());
  64   VERIFY( b1() == 1 );
  65
  66   volatile auto b2 = std::bind<int>(X());
  67   VERIFY( b2() == 2 );
  68
  69   const volatile auto b3 = std::bind<int>(X());
  70   VERIFY( b3() == 3 );
  71 }
  72
  73 void test03()
  74 {
  75   auto b0 = std::bind(X(), 0, _1, _2);
  76   VERIFY( b0(0, 0) == 0 );
  77
  78   const auto b1 = std::bind(X(), _1, 0, _2);
  79   VERIFY( b1(0, 0) == 1 );
  80
  81   volatile auto b2 = std::bind(X(), _1, _2, 0);
  82   VERIFY( b2(0, 0) == 2 );
  83
  84   const volatile auto b3 = std::bind(X(), _1, 0, _2);
  85   VERIFY( b3(0, 0) == 3 );
  86 }
  87
  88 void test04()
  89 {
  90   auto b0 = std::bind<int>(X(), 0, _1, _2);
  91   VERIFY( b0(0, 0) == 0 );
  92
  93   const auto b1 = std::bind<int>(X(), _1, 0, _2);
  94   VERIFY( b1(0, 0) == 1 );
  95
  96   volatile auto b2 = std::bind<int>(X(), _1, _2, 0);
  97   VERIFY( b2(0, 0) == 2 );
  98
  99   const volatile auto b3 = std::bind<int>(X(), _1, 0, _2);
 100   VERIFY( b3(0, 0) == 3 );
 101 }
 102
 103
 104 int main()
 105 {
 106   test01();
 107   test02();
 108   test03();
 109   test04();
 110   return 0;
 111 }