libstdc++-v3/testsuite/23_containers/map/modifiers/dr130.cc

   1 // { dg-do run { target c++11 } }
   2 // 2008-07-22  Edward Smith-Rowland  <3dw4rd@verizon.net>
   3 //
   4 // Copyright (C) 2009-2017 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <map>
  22 #include <testsuite_hooks.h>
  23
  24 //  DR 130. Associative erase should return an iterator.
  25 void
  26 test01()
  27 {
  28   using namespace std;
  29
  30   map<int, int> m0;
  31   typedef map<int, int>::iterator iterator;
  32   typedef map<int, int>::const_iterator const_iterator;
  33   typedef map<int, int>::value_type value_type;
  34   typedef pair<iterator, bool> insert_return_type;
  35
  36   m0.insert(value_type(1, 1));
  37   insert_return_type irt1 = m0.insert(value_type(2, 2));
  38   insert_return_type irt2 = m0.insert(value_type(3, 3));
  39
  40   iterator pos1 = m0.erase(irt1.first);
  41   VERIFY( pos1 == irt2.first );
  42
  43   iterator pos2 = m0.erase(irt2.first);
  44   VERIFY( pos2 == m0.end() );
  45 }
  46
  47 void
  48 test02()
  49 {
  50   using namespace std;
  51
  52   map<int, int> m0;
  53   typedef map<int, int>::iterator iterator;
  54   typedef map<int, int>::const_iterator const_iterator;
  55   typedef map<int, int>::value_type value_type;
  56   typedef pair<iterator, bool> insert_return_type;
  57
  58   insert_return_type irt0 = m0.insert(value_type(1, 1));
  59   m0.insert(value_type(2, 2));
  60   insert_return_type irt2 = m0.insert(value_type(3, 3));
  61   insert_return_type irt3 = m0.insert(value_type(4, 4));
  62
  63   iterator pos1 = m0.erase(irt0.first, irt2.first);
  64   VERIFY( pos1 == irt2.first );
  65
  66   iterator pos2 = m0.erase(irt2.first, ++irt3.first);
  67   VERIFY( pos2 == m0.end() );
  68 }
  69
  70 int
  71 main()
  72 {
  73   test01();
  74   test02();
  75 }