mirror of
https://github.com/boostorg/optional.git
synced 2025-11-04 09:41:37 +01:00
31 lines
737 B
C++
31 lines
737 B
C++
// Copyright (C) 2018 Andrzej Krzemienski.
|
|
//
|
|
// Use, modification, and distribution is subject to the Boost Software
|
|
// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
// See http://www.boost.org/lib/optional for documentation.
|
|
//
|
|
// You are welcome to contact the author at:
|
|
// akrzemi1@gmail.com
|
|
|
|
#include "boost/core/lightweight_test.hpp"
|
|
#include "boost/optional/optional.hpp"
|
|
|
|
void test_assignment_to_empty()
|
|
{
|
|
// this test used to fail on GCC 8.1.0/8.2.0/9.0.0 with -std=c++98
|
|
boost::optional<int> oa, ob(1);
|
|
BOOST_TEST(!oa);
|
|
BOOST_TEST(ob);
|
|
|
|
oa = ob;
|
|
BOOST_TEST(oa);
|
|
}
|
|
|
|
int main()
|
|
{
|
|
test_assignment_to_empty();
|
|
return boost::report_errors();
|
|
}
|