libstdc++-v3/testsuite/25_algorithms/minmax_element/check_type.cc

   1
   2 // Copyright (C) 2007-2019 Free Software Foundation, Inc.
   3 //
   4 // This file is part of the GNU ISO C++ Library.  This library is free
   5 // software; you can redistribute it and/or modify it under the
   6 // terms of the GNU General Public License as published by the
   7 // Free Software Foundation; either version 3, or (at your option)
   8 // any later version.
   9
  10 // This library is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License along
  16 // with this library; see the file COPYING3.  If not see
  17 // <http://www.gnu.org/licenses/>.
  18
  19 // { dg-do compile { target c++11 } }
  20
  21 #include <algorithm>
  22 #include <testsuite_iterators.h>
  23
  24 using __gnu_test::forward_iterator_wrapper;
  25
  26 struct S { };
  27
  28 bool
  29 operator<(const S&, const S&) {return true;}
  30
  31 struct X { };
  32
  33 bool
  34 predicate(const X&, const X&) {return true;}
  35
  36 std::pair<forward_iterator_wrapper<S>, forward_iterator_wrapper<S> >
  37 test1(forward_iterator_wrapper<S>& s)
  38 { return std::minmax_element(s,s); }
  39
  40 std::pair<forward_iterator_wrapper<X>, forward_iterator_wrapper<X> >
  41 test2(forward_iterator_wrapper<X>& x)
  42 { return std::minmax_element(x,x,predicate); }