libstdc++-v3/testsuite/23_containers/map/element_access/1.cc

   1 // 2005-08-29  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005-2025 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 #include <map>
  21 #include <stdexcept>
  22 #include <testsuite_hooks.h>
  23
  24 // libstdc++/23578
  25 void test01()
  26 {
  27   typedef std::map<int, double> map_type;
  28
  29   {
  30     map_type m;
  31     m[0] = 1.5;
  32
  33     double& rd = m.at(0);
  34     VERIFY( rd == 1.5 );
  35     try
  36       {
  37         m.at(1);
  38       }
  39     catch(std::out_of_range& obj)
  40       {
  41         // Expected.
  42       }
  43     catch(...)
  44       {
  45         // Failed.
  46         throw;
  47       }
  48   }
  49
  50   {
  51     map_type m;
  52     m[1] = 2.5;
  53     const map_type cm(m);
  54
  55     const double& crd = cm.at(1);
  56     VERIFY( crd == 2.5 );
  57     try
  58       {
  59         cm.at(0);
  60       }
  61     catch(std::out_of_range& obj)
  62       {
  63         // Expected.
  64       }
  65     catch(...)
  66       {
  67         // Failed.
  68         throw;
  69       }
  70   }
  71 }
  72
  73 int main()
  74 {
  75   test01();
  76   return 0;
  77 }