// { dg-options "-std=gnu++17" } // { dg-do run } // Copyright (C) 2014-2019 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // You should have received a copy of the GNU General Public License along // with this library; see the file COPYING3. If not see // . #include #include using std::any; void test01() { any x; VERIFY( !x.has_value() ); any y(x); VERIFY( !x.has_value() ); VERIFY( !y.has_value() ); any z(std::move(y)); VERIFY( !y.has_value() ); VERIFY( !z.has_value() ); } void test02() { any x(1); VERIFY( x.has_value() ); any y(x); VERIFY( x.has_value() ); VERIFY( y.has_value() ); any z(std::move(y)); VERIFY( !y.has_value() ); VERIFY( z.has_value() ); } int main() { test01(); test02(); }