50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// Copyright (C) 2014 Andrzej Krzemienski.
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//
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/lib/optional for documentation.
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//
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// You are welcome to contact the author at:
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// akrzemi1@gmail.com
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#include "boost/optional/optional.hpp"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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using boost::optional;
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#if (!defined BOOST_OPTIONAL_DETAIL_NO_IS_CONSTRUCTIBLE_TRAIT)
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struct X {};
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struct Y {};
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struct Resource
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{
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explicit Resource(const X&) {}
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};
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BOOST_STATIC_ASSERT(( boost::is_constructible<Resource, const X&>::value ));
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BOOST_STATIC_ASSERT(( !boost::is_constructible<Resource, const Y&>::value ));
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BOOST_STATIC_ASSERT(( boost::is_constructible<optional<Resource>, const X&>::value ));
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BOOST_STATIC_ASSERT(( !boost::is_constructible<optional<Resource>, const Y&>::value ));
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#ifndef BOOST_OPTIONAL_DETAIL_NO_SFINAE_FRIENDLY_CONSTRUCTORS
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BOOST_STATIC_ASSERT(( boost::is_constructible< optional< optional<int> >, optional<int> >::value ));
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BOOST_STATIC_ASSERT(( !boost::is_constructible< optional<int>, optional< optional<int> > >::value ));
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BOOST_STATIC_ASSERT(( boost::is_constructible< optional< optional<int> >, const optional<int>& >::value ));
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BOOST_STATIC_ASSERT(( !boost::is_constructible< optional<int>, const optional< optional<int> >& >::value ));
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BOOST_STATIC_ASSERT(( boost::is_constructible<optional<Resource>, const optional<X>&>::value ));
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BOOST_STATIC_ASSERT(( !boost::is_constructible<optional<Resource>, const optional<Y>&>::value ));
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#endif
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#endif
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int main() { }
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