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

   1 // Copyright (C) 2006-2025 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 // 23.2.4.2 vector capacity [lib.vector.capacity]
  19
  20 #include <vector>
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_allocator.h>
  23
  24 // libstdc++/29134
  25 void test01()
  26 {
  27   std::vector<int> v;
  28
  29   std::allocator<int> a = v.get_allocator();
  30 #if __cplusplus > 201703L
  31   // std::allocator_traits::max_size() is unrealistically large,
  32   // so std::vector::max_size() returns a smaller value.
  33   VERIFY( v.max_size() <= __gnu_test::max_size(a) );
  34 #else
  35   VERIFY( v.max_size() == __gnu_test::max_size(a) );
  36 #endif
  37
  38 }
  39
  40 int main()
  41 {
  42   test01();
  43   return 0;
  44 }