libstdc++-v3/testsuite/23_containers/vector/cons/94540.cc

   1 // Copyright (C) 2020-2025 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 // { dg-do run { target { c++11 && { ! simulator } } } }
  19
  20 #include <vector>
  21 #include <testsuite_hooks.h>
  22
  23 // Assume that 9MB is larger than the stack limit.
  24 struct X { char data[9*1024*1024]; };
  25
  26 static_assert( std::is_trivially_default_constructible<X>::value, "" );
  27 static_assert( std::is_trivially_copyable<X>::value, "" );
  28
  29 int main()
  30 {
  31   std::vector<X> v(1);
  32   VERIFY( v.size() == 1 );
  33   v.clear();
  34   v.resize(2);
  35   VERIFY( v.size() == 2 );
  36 }