libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/71545.cc

   1 // Copyright (C) 2016-2019 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-options "-D_GLIBCXX_DEBUG" }
  19 // { dg-do link { target c++11 } }
  20 // { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PROFILE" } }
  21
  22 #include <algorithm>
  23
  24 struct X { };
  25
  26 bool operator<(X, int) { return true; }
  27 bool operator<(int, X) { return false; }
  28
  29 bool operator<(X, X); // undefined (PR libstdc++/71545)
  30
  31 int main()
  32 {
  33   X x[1];
  34   int i[1];
  35   std::lexicographical_compare(x, x+1, i, i+1);
  36 }