libstdc++-v3/testsuite/21_strings/debug/shrink_to_fit.cc

   1 // Copyright (C) 2011-2022 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 xfail *-*-* } }
  19
  20 #include <debug/string>
  21
  22 void test01()
  23 {
  24   using __gnu_debug::string;
  25   string s;
  26   s.reserve(2);
  27   s.push_back('a');
  28   string::iterator it = s.begin();
  29   s.shrink_to_fit();
  30   // Following line should assert
  31   *it = 'z';
  32 }
  33
  34 int main()
  35 {
  36   test01();
  37   return 0;
  38 }