libstdc++-v3/testsuite/tr1/3_function_objects/bind/mixed.cc

   1 // { dg-do run { target c++11 } }
   2 // 2011-11-20 Jonathan Wakely <jwakely.gcc -at- gmail.com>
   3 //
   4 // Copyright (C) 2011-2023 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // 3.6 function object binders
  22 #include <tr1/functional>
  23 #include <functional>
  24 #include <testsuite_hooks.h>
  25
  26 // std::tr1::bind and std::bind should work together
  27
  28 namespace p1 = std::placeholders;
  29 namespace p2 = std::tr1::placeholders;
  30
  31 using std::multiplies;
  32 using std::minus;
  33
  34 void test01()
  35 {
  36   static_assert( std::is_placeholder<decltype(p2::_2)>::value == 2,
  37       "TR1 placeholder is a std placeholder" );
  38   static_assert( std::tr1::is_placeholder<decltype(p1::_1)>::value == 1,
  39       "std placeholder is a TR2 placeholder" );
  40 }
  41
  42 void test02()
  43 {
  44   auto b1 = std::bind(minus<int>(), 6, p2::_2);
  45   auto b2 = std::tr1::bind(minus<int>(), 6, p1::_2);
  46
  47   int five = 5;
  48   int seven = 7;
  49
  50   VERIFY( std::tr1::bind(multiplies<int>(), p1::_1, b1)(five, seven) == -5 );
  51   VERIFY( std::bind(multiplies<int>(), p2::_1, b2)(seven, five) == 7 );
  52
  53   VERIFY( std::tr1::bind<int>(multiplies<int>(), p1::_1, b1)(five, seven) == -5 );
  54   VERIFY( std::bind<int>(multiplies<int>(), p2::_1, b2)(seven, five) == 7 );
  55
  56   static_assert( std::is_bind_expression<decltype(b2)>::value,
  57       "TR1 bind expression is a std bind expression" );
  58   static_assert( std::tr1::is_bind_expression<decltype(b1)>::value,
  59       "std bind expression is a TR2 bind expression" );
  60
  61   const auto c1 = b1;
  62   const auto c2 = b2;
  63
  64   static_assert( std::is_bind_expression<decltype(c2)>::value,
  65       "const TR1 bind expression is a std bind expression" );
  66   static_assert( std::tr1::is_bind_expression<decltype(c1)>::value,
  67       "const std bind expression is a TR2 bind expression" );
  68
  69   volatile auto v1 = b1;
  70   volatile auto v2 = b2;
  71
  72   static_assert( std::is_bind_expression<decltype(v2)>::value,
  73       "volatile TR1 bind expression is a std bind expression" );
  74   static_assert( std::tr1::is_bind_expression<decltype(v1)>::value,
  75       "volatile std bind expression is a TR2 bind expression" );
  76
  77   const volatile auto cv1 = b1;
  78   const volatile auto cv2 = b2;
  79
  80   static_assert( std::is_bind_expression<decltype(cv2)>::value,
  81       "const volatile TR1 bind expression is a std bind expression" );
  82   static_assert( std::tr1::is_bind_expression<decltype(cv1)>::value,
  83       "const volatile std bind expression is a TR2 bind expression" );
  84 }
  85
  86 void test03()
  87 {
  88   auto b1 = std::bind<int>(minus<int>(), 6, p2::_2);
  89   auto b2 = std::tr1::bind<int>(minus<int>(), 6, p1::_2);
  90
  91   int five = 5;
  92   int seven = 7;
  93   VERIFY( std::tr1::bind(multiplies<int>(), p1::_1, b1)(five, seven) == -5 );
  94   VERIFY( std::bind(multiplies<int>(), p2::_1, b2)(seven, five) == 7 );
  95
  96   VERIFY( std::tr1::bind<int>(multiplies<int>(), p1::_1, b1)(five, seven) == -5 );
  97   VERIFY( std::bind<int>(multiplies<int>(), p2::_1, b2)(seven, five) == 7 );
  98
  99   static_assert( std::is_bind_expression<decltype(b2)>::value,
 100       "TR1 bind<R> expression is a std bind expression" );
 101   static_assert( std::tr1::is_bind_expression<decltype(b1)>::value,
 102       "std bind<R> expression is a TR2 bind expression" );
 103
 104   const auto c1 = b1;
 105   const auto c2 = b2;
 106
 107   static_assert( std::is_bind_expression<decltype(c2)>::value,
 108       "const TR1 bind<R> expression is a std bind expression" );
 109   static_assert( std::tr1::is_bind_expression<decltype(c1)>::value,
 110       "const std bind<R> expression is a TR2 bind expression" );
 111
 112   volatile auto v1 = b1;
 113   volatile auto v2 = b2;
 114
 115   static_assert( std::is_bind_expression<decltype(v2)>::value,
 116       "volatile TR1 bind<R> expression is a std bind expression" );
 117   static_assert( std::tr1::is_bind_expression<decltype(v1)>::value,
 118       "volatile std bind<R> expression is a TR2 bind expression" );
 119
 120   const volatile auto cv1 = b1;
 121   const volatile auto cv2 = b2;
 122
 123   static_assert( std::is_bind_expression<decltype(cv2)>::value,
 124       "const volatile TR1 bind<R> expression is a std bind expression" );
 125   static_assert( std::tr1::is_bind_expression<decltype(cv1)>::value,
 126       "const volatile std bind<R> expression is a TR2 bind expression" );
 127 }
 128
 129 int main()
 130 {
 131   test01();
 132   test02();
 133   test03();
 134   return 0;
 135 }