libstdc++-v3/testsuite/23_containers/deque/operators/2.cc

   1 // 2002-05-18  Paolo Carlini  <pcarlini@unitus.it>
   2
   3 // Copyright (C) 2002-2025 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 23.2.1 deque operators
  21
  22 #include <deque>
  23 #include <testsuite_hooks.h>
  24
  25 // libstdc++/7186
  26 void test02()
  27 {
  28   std::deque<int> d(2);
  29   typedef std::deque<int>::iterator iter;
  30   typedef std::deque<int>::const_iterator constiter;
  31
  32   iter beg = d.begin();
  33   iter end = d.end();
  34   constiter constbeg = d.begin();
  35   constiter constend = d.end();
  36
  37   VERIFY( beg - constbeg == 0 );
  38   VERIFY( constend - end == 0 );
  39
  40   VERIFY( end - constbeg > 0 );
  41   VERIFY( constend - beg > 0 );
  42 }
  43
  44 int main()
  45 {
  46   test02();
  47   return 0;
  48 }