libstdc++-v3/testsuite/23_containers/unordered_map/requirements/cliterators.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // 2008-06-11  Paolo Carlini  <paolo.carlini@oracle.com>
   4
   5 // Copyright (C) 2008 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 2, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING.  If not, write to the Free
  20 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  21 // USA.
  22
  23 // As a special exception, you may use this file as part of a free software
  24 // library without restriction.  Specifically, if other files instantiate
  25 // templates or use macros or inline functions from this file, or you compile
  26 // this file and link it with other files to produce an executable, this
  27 // file does not by itself cause the resulting executable to be covered by
  28 // the GNU General Public License.  This exception does not however
  29 // invalidate any other reasons why the executable file might be covered by
  30 // the GNU General Public License.
  31
  32 #include <unordered_map>
  33 #include <testsuite_hooks.h>
  34
  35 // DR 691.
  36 void test01()
  37 {
  38   bool test __attribute__((unused)) = true;
  39
  40   typedef std::unordered_map<int, int> um_type;
  41   um_type um;
  42   um[1] = 1;
  43   VERIFY( um.cbegin(0) == um.begin(0) );
  44   VERIFY( um.cend(0) == um.end(0) );
  45   const um_type::size_type bn = um.bucket(1);
  46   VERIFY( um.cbegin(bn) != um.cend(bn) );
  47 }
  48
  49 int main()
  50 {
  51   test01();
  52   return 0;
  53 }