libstdc++-v3/testsuite/25_algorithms/is_partitioned/2.cc

   1 // Copyright (C) 2017-2025 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 // { dg-do run { target c++11 } }
  19
  20 #include <algorithm>
  21 #include <testsuite_hooks.h>
  22
  23 // PR libstdc++/64903
  24
  25 int count;
  26
  27 struct pred
  28 {
  29   bool operator()(int i) const { ++count; return i < 5; }
  30 };
  31
  32 void
  33 test01()
  34 {
  35   int i[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
  36   bool result = std::is_partitioned(i, i + 10, pred());
  37   VERIFY( result );
  38   VERIFY( count == 10 );
  39 }
  40
  41 int
  42 main()
  43 {
  44   test01();
  45 }