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

   1 // { dg-do run { target c++11 } }
   2 // 2008-07-22  Edward Smith-Rowland  <3dw4rd@verizon.net>
   3 //
   4 // Copyright (C) 2009-2025 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 <set>
  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   set<int> s0;
  31   typedef set<int>::iterator iterator;
  32   typedef set<int>::const_iterator const_iterator;
  33   typedef pair<iterator, bool> insert_return_type;
  34
  35   s0.insert(1);
  36   insert_return_type irt1 = s0.insert(2);
  37   insert_return_type irt2 = s0.insert(3);
  38
  39   iterator pos1 = s0.erase(irt1.first);
  40   VERIFY( pos1 == irt2.first );
  41
  42   iterator pos2 = s0.erase(irt2.first);
  43   VERIFY( pos2 == s0.end() );
  44 }
  45
  46 void
  47 test02()
  48 {
  49   using namespace std;
  50
  51   set<int> s0;
  52   typedef set<int>::iterator iterator;
  53   typedef set<int>::const_iterator const_iterator;
  54   typedef pair<iterator, bool> insert_return_type;
  55
  56   insert_return_type irt0 = s0.insert(1);
  57   s0.insert(2);
  58   insert_return_type irt2 = s0.insert(3);
  59   insert_return_type irt3 = s0.insert(4);
  60
  61   iterator pos1 = s0.erase(irt0.first, irt2.first);
  62   VERIFY( pos1 == irt2.first );
  63
  64   iterator pos2 = s0.erase(irt2.first, ++irt3.first);
  65   VERIFY( pos2 == s0.end() );
  66 }
  67
  68 int
  69 main()
  70 {
  71   test01();
  72   test02();
  73 }