libstdc++-v3/testsuite/23_containers/vector/bool/capacity/29134.cc

   1 // Copyright (C) 2006-2020 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 // 23.2.5 class vector<bool> [lib.vector.bool]
  19
  20 #include <vector>
  21 #include <limits>
  22 #include <testsuite_hooks.h>
  23
  24 // libstdc++/29134
  25 void test01()
  26 {
  27   using std::vector;
  28   using std::numeric_limits;
  29
  30 #ifdef _GLIBCXX_DEBUG
  31   using std::_GLIBCXX_STD_C::_S_word_bit;
  32 #else
  33   using std::_S_word_bit;
  34 #endif
  35
  36   // Actually, vector<bool> is special, see libstdc++/31370.
  37   vector<bool> vb;
  38   typedef vector<bool>::difference_type difference_type;
  39   typedef vector<bool>::size_type size_type;
  40   VERIFY( vb.max_size()
  41           == size_type(numeric_limits<difference_type>::max()
  42                        - int(_S_word_bit) + 1) );
  43 }
  44
  45 int main()
  46 {
  47   test01();
  48   return 0;
  49 }