libstdc++-v3/testsuite/23_containers/list/cons/7.h

   1 // Copyright (C) 2001-2021 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 // 23.2.2.1 list constructors, copy, and assignment
  19
  20 #include <testsuite_hooks.h>
  21
  22 // Fill assign
  23 //
  24 // This test verifies the following.
  25 // 23.2.2.1     void assign(size_type n, const T& v)
  26 // 23.2.2       const_iterator begin() const
  27 // 23.2.2       const_iterator end() const
  28 // 23.2.2       size_type size() const
  29 //
  30 template<typename _Tp>
  31 void
  32 cons07()
  33 {
  34   const std::size_t BIG_LIST_SIZE = 11;
  35   const int BIG_INIT_VALUE = 7;
  36   const std::size_t SMALL_LIST_SIZE = 5;
  37   const int SMALL_INIT_VALUE = 17;
  38   std::size_t count;
  39
  40   typedef _Tp list_type;
  41   typedef typename list_type::const_iterator const_iterator;
  42   const_iterator i;
  43
  44   list_type list0601;
  45   VERIFY(list0601.size() == 0);
  46
  47   // make it bigger
  48   list0601.assign(BIG_LIST_SIZE, BIG_INIT_VALUE);
  49   for (i = list0601.begin(), count = 0;
  50        i != list0601.end();
  51        ++i, ++count)
  52     VERIFY(*i == BIG_INIT_VALUE);
  53   VERIFY(count == BIG_LIST_SIZE);
  54   VERIFY(list0601.size() == BIG_LIST_SIZE);
  55
  56   // make it shrink
  57   list0601.assign(SMALL_LIST_SIZE, SMALL_INIT_VALUE);
  58   for (i = list0601.begin(), count = 0;
  59        i != list0601.end();
  60        ++i, ++count)
  61     VERIFY(*i == SMALL_INIT_VALUE);
  62   VERIFY(count == SMALL_LIST_SIZE);
  63   VERIFY(list0601.size() == SMALL_LIST_SIZE);
  64 }