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

   1 // Copyright (C) 2010-2022 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-options "-Wdeprecated-declarations" }
  21 // { dg-do run { target c++11 } }
  22
  23 #include <functional>
  24 #include <testsuite_hooks.h>
  25
  26 // target must be invoked with cv-quals of call wrapper
  27
  28 struct X
  29 {
  30   int operator()() { return 0; }
  31   int operator()() const { return 1; }
  32   int operator()() volatile { return 2; }
  33   int operator()() const volatile { return 3; }
  34
  35   int operator()(int, int, int) { return 0; }
  36   int operator()(int, int, int) const { return 1; }
  37   int operator()(int, int, int) volatile { return 2; }
  38   int operator()(int, int, int) const volatile { return 3; }
  39 };
  40
  41 using std::placeholders::_1;
  42 using std::placeholders::_2;
  43
  44 void test01()
  45 {
  46   auto b0 = std::bind(X());
  47   VERIFY( b0() == 0 );
  48
  49   const auto b1 = std::bind(X());
  50   VERIFY( b1() == 1 );
  51
  52 #if __cplusplus <= 201703L
  53   volatile auto b2 = std::bind(X());
  54   VERIFY( b2() == 2 ); // { dg-warning "deprecated" "" { target c++17_only } }
  55
  56   const volatile auto b3 = std::bind(X());
  57   VERIFY( b3() == 3 ); // { dg-warning "deprecated" "" { target c++17_only } }
  58 #endif
  59 }
  60
  61 void test02()
  62 {
  63   auto b0 = std::bind<int>(X());
  64   VERIFY( b0() == 0 );
  65
  66   const auto b1 = std::bind<int>(X());
  67   VERIFY( b1() == 1 );
  68
  69 #if __cplusplus <= 201703L
  70   volatile auto b2 = std::bind<int>(X());
  71   VERIFY( b2() == 2 ); // { dg-warning "deprecated" "" { target c++17_only } }
  72
  73   const volatile auto b3 = std::bind<int>(X());
  74   VERIFY( b3() == 3 ); // { dg-warning "deprecated" "" { target c++17_only } }
  75 #endif
  76 }
  77
  78 void test03()
  79 {
  80   auto b0 = std::bind(X(), 0, _1, _2);
  81   VERIFY( b0(0, 0) == 0 );
  82
  83   const auto b1 = std::bind(X(), _1, 0, _2);
  84   VERIFY( b1(0, 0) == 1 );
  85
  86 #if __cplusplus <= 201703L
  87   volatile auto b2 = std::bind(X(), _1, _2, 0);
  88   VERIFY( b2(0, 0) == 2 ); // { dg-warning "deprecated" "" { target c++17_only } }
  89
  90   const volatile auto b3 = std::bind(X(), _1, 0, _2);
  91   VERIFY( b3(0, 0) == 3 ); // { dg-warning "deprecated" "" { target c++17_only } }
  92 #endif
  93 }
  94
  95 void test04()
  96 {
  97   auto b0 = std::bind<int>(X(), 0, _1, _2);
  98   VERIFY( b0(0, 0) == 0 );
  99
 100   const auto b1 = std::bind<int>(X(), _1, 0, _2);
 101   VERIFY( b1(0, 0) == 1 );
 102
 103 #if __cplusplus <= 201703L
 104   volatile auto b2 = std::bind<int>(X(), _1, _2, 0);
 105   VERIFY( b2(0, 0) == 2 ); // { dg-warning "deprecated" "" { target c++17_only } }
 106
 107   const volatile auto b3 = std::bind<int>(X(), _1, 0, _2);
 108   VERIFY( b3(0, 0) == 3 ); // { dg-warning "deprecated" "" { target c++17_only } }
 109 #endif
 110 }
 111
 112
 113 int main()
 114 {
 115   test01();
 116   test02();
 117   test03();
 118   test04();
 119   return 0;
 120 }