diff options
Diffstat (limited to 'libstdc++-v3/testsuite/20_util/optional/observers/5.cc')
-rw-r--r-- | libstdc++-v3/testsuite/20_util/optional/observers/5.cc | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/optional/observers/5.cc b/libstdc++-v3/testsuite/20_util/optional/observers/5.cc new file mode 100644 index 00000000000..386d81de2e0 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/optional/observers/5.cc @@ -0,0 +1,40 @@ +// { dg-options "-std=gnu++17" } +// { dg-do run } + +// Copyright (C) 2013-2016 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 moved_to of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <optional> +#include <testsuite_hooks.h> + +struct value_type +{ + int i; +}; + +int main() +{ + { + std::optional<value_type> o = std::nullopt; + VERIFY( !o ); + } + + { + std::optional<value_type> o { value_type { 51 } }; + VERIFY( o ); + } +} |