libstdc++-v3/testsuite/23_containers/list/capacity/1.h

   1 // Copyright (C) 2001-2024 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 23.2.2.2 list capacity [lib.list.capacity]
  19
  20 #include <testsuite_hooks.h>
  21
  22 // This test verifies the following.
  23 //
  24 // 23.2.2       bool empty() const
  25 // 23.2.2       size_type size() const
  26 // 23.2.2       iterator begin()
  27 // 23.2.2       iterator end()
  28 // 23.2.2.3     void push_back(const T&)
  29 // 23.2.2       size_type max_size() const
  30 // 23.2.2.2     void resize(size_type s, T c = T())
  31 //
  32 template<typename _Tp>
  33 void
  34 capacity01()
  35 {
  36   typedef _Tp list_type;
  37   typedef typename list_type::iterator iterator_type;
  38
  39   list_type list0101;
  40   VERIFY(list0101.empty());
  41   VERIFY(list0101.size() == 0);
  42
  43   list0101.push_back(1);
  44   VERIFY(!list0101.empty());
  45   VERIFY(list0101.size() == 1);
  46
  47   list0101.resize(3, 2);
  48   VERIFY(!list0101.empty());
  49   VERIFY(list0101.size() == 3);
  50
  51   iterator_type i = list0101.begin();
  52   VERIFY(*i == 1); ++i;
  53   VERIFY(*i == 2); ++i;
  54   VERIFY(*i == 2); ++i;
  55   VERIFY(i == list0101.end());
  56
  57   list0101.resize(0);
  58   VERIFY(list0101.empty());
  59   VERIFY(list0101.size() == 0);
  60 }