libstdc++-v3/testsuite/20_util/bind/68912.cc

   1 // Copyright (C) 2015-2024 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 // { dg-do compile { target c++11 } }
  19
  20 #include<functional>
  21
  22 struct Wrong {};
  23 struct A {};
  24 struct B {};
  25 struct C{};
  26 struct D{};
  27
  28 struct X {
  29   A operator()(int, double) & { return {}; }
  30   Wrong operator()(int, double) && {return {}; }
  31
  32   B operator()(int, double) const & { return {}; }
  33   Wrong operator()(int, double) const && {return {}; }
  34
  35   C operator()(int, double) volatile & { return {}; }
  36   Wrong operator()(int, double) volatile && {return {}; }
  37
  38   D operator()(int, double) const volatile & { return {}; }
  39   Wrong operator()(int, double) const volatile && {return {}; }
  40 };
  41
  42 void test01()
  43 {
  44   auto bound = std::bind(X{}, 5, std::placeholders::_1);
  45   A res = bound(1.0);
  46   const auto bound_c = bound;
  47   B res_c = bound_c(1.0);
  48 #if __cplusplus <= 201402L
  49   volatile auto bound_v = bound;
  50   C res_v = bound_v(1.0);
  51   volatile const auto bound_cv = bound;
  52   D res_cv = bound_cv(1.0);
  53 #endif
  54 }