libstdc++-v3/testsuite/23_containers/forward_list/capacity/1.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2008-2024 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 23.2.3.n forward_list capacity [lib.forward_list.capacity]
  21
  22 #include <forward_list>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_allocator.h>
  25
  26 void
  27 test01()
  28 {
  29   std::forward_list<double> fld;
  30   VERIFY(fld.empty() == true);
  31
  32   fld.push_front(1.0);
  33   VERIFY(fld.empty() == false);
  34
  35   fld.resize(0);
  36   VERIFY(fld.empty() == true);
  37
  38 #ifdef _GLIBCXX_DEBUG
  39   using std::_GLIBCXX_STD_C::_Fwd_list_node;
  40 #else
  41   using std::_Fwd_list_node;
  42 #endif
  43
  44   std::allocator<_Fwd_list_node<double> > a;
  45   VERIFY( fld.max_size() == __gnu_test::max_size(a) );
  46 }
  47
  48 int
  49 main()
  50 {
  51   test01();
  52   return 0;
  53 }