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

   1 // Copyright (C) 2010-2019 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 #if __cplusplus <= 201402L
  52   volatile auto b2 = std::bind(X());
  53   VERIFY( b2() == 2 );
  54
  55   const volatile auto b3 = std::bind(X());
  56   VERIFY( b3() == 3 );
  57 #endif
  58 }
  59
  60 void test02()
  61 {
  62   auto b0 = std::bind<int>(X());
  63   VERIFY( b0() == 0 );
  64
  65   const auto b1 = std::bind<int>(X());
  66   VERIFY( b1() == 1 );
  67
  68 #if __cplusplus <= 201402L
  69   volatile auto b2 = std::bind<int>(X());
  70   VERIFY( b2() == 2 );
  71
  72   const volatile auto b3 = std::bind<int>(X());
  73   VERIFY( b3() == 3 );
  74 #endif
  75 }
  76
  77 void test03()
  78 {
  79   auto b0 = std::bind(X(), 0, _1, _2);
  80   VERIFY( b0(0, 0) == 0 );
  81
  82   const auto b1 = std::bind(X(), _1, 0, _2);
  83   VERIFY( b1(0, 0) == 1 );
  84
  85 #if __cplusplus <= 201402L
  86   volatile auto b2 = std::bind(X(), _1, _2, 0);
  87   VERIFY( b2(0, 0) == 2 );
  88
  89   const volatile auto b3 = std::bind(X(), _1, 0, _2);
  90   VERIFY( b3(0, 0) == 3 );
  91 #endif
  92 }
  93
  94 void test04()
  95 {
  96   auto b0 = std::bind<int>(X(), 0, _1, _2);
  97   VERIFY( b0(0, 0) == 0 );
  98
  99   const auto b1 = std::bind<int>(X(), _1, 0, _2);
 100   VERIFY( b1(0, 0) == 1 );
 101
 102 #if __cplusplus <= 201402L
 103   volatile auto b2 = std::bind<int>(X(), _1, _2, 0);
 104   VERIFY( b2(0, 0) == 2 );
 105
 106   const volatile auto b3 = std::bind<int>(X(), _1, 0, _2);
 107   VERIFY( b3(0, 0) == 3 );
 108 #endif
 109 }
 110
 111
 112 int main()
 113 {
 114   test01();
 115   test02();
 116   test03();
 117   test04();
 118   return 0;
 119 }