libstdc++-v3/testsuite/23_containers/set/modifiers/erase/51142.cc

   1 // Copyright (C) 2011-2025 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
  19 // { dg-do compile { target c++11 } }
  20
  21 #include <set>
  22
  23 struct X
  24 {
  25   template<typename T>
  26   X(T&) {}
  27 };
  28
  29 bool operator<(const X&, const X&) { return false; }
  30
  31 // LWG 2059.
  32 void erasor(std::set<X>& s, X x)
  33 {
  34   std::set<X>::iterator it = s.find(x);
  35   if (it != s.end())
  36     s.erase(it);
  37 }