libstdc++-v3/testsuite/experimental/any/modifiers/1.cc

   1 // { dg-do run { target c++14 } }
   2
   3 // Copyright (C) 2014-2021 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 #include <experimental/any>
  21 #include <testsuite_hooks.h>
  22
  23 using std::experimental::any;
  24
  25 void test01()
  26 {
  27   any x(1);
  28   any y;
  29   x.swap(y);
  30   VERIFY( x.empty() );
  31   VERIFY( !y.empty() );
  32   x.swap(y);
  33   VERIFY( !x.empty() );
  34   VERIFY( y.empty() );
  35
  36   x.clear();
  37   VERIFY( x.empty() );
  38 }
  39
  40 int main()
  41 {
  42   test01();
  43 }