libstdc++-v3/testsuite/20_util/tuple/comparison_operators/93147.cc

   1 // Copyright (C) 2020-2024 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
  21 #include <tuple>
  22
  23 struct A {
  24     bool operator == (A) const { return true; }
  25 };
  26
  27 struct B {
  28     bool operator == (B) const { return true; }
  29 };
  30
  31 using Tuple = std::tuple<A, B>;
  32
  33 bool example(Tuple a, Tuple b)
  34 {
  35     return a == b; // PR libstdc++/93147
  36 }