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old compiler workarounds for the previous two fixes

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Andrzej Krzemienski
2016-11-20 23:42:41 +01:00
parent fafb3abb64
commit b4907c2a51
4 changed files with 38 additions and 12 deletions
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49
test/optional_test_sfinae_friendly_ctor.cpp Normal file
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// Copyright (C) 2014 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/optional/optional.hpp"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
using boost::optional;
#if (!defined BOOST_OPTIONAL_DETAIL_NO_IS_CONSTRUCTIBLE_TRAIT)
struct X {};
struct Y {};
struct Resource
{
explicit Resource(const X&) {}
};
BOOST_STATIC_ASSERT(( boost::is_constructible<Resource, const X&>::value ));
BOOST_STATIC_ASSERT(( !boost::is_constructible<Resource, const Y&>::value ));
BOOST_STATIC_ASSERT(( boost::is_constructible<optional<Resource>, const X&>::value ));
BOOST_STATIC_ASSERT(( !boost::is_constructible<optional<Resource>, const Y&>::value ));
#ifdef BOOST_OPTIONAL_DETAIL_USE_SFINAE_FRIENDLY_CONSTRUCTORS
BOOST_STATIC_ASSERT(( boost::is_constructible< optional< optional<int> >, optional<int> >::value ));
BOOST_STATIC_ASSERT(( !boost::is_constructible< optional<int>, optional< optional<int> > >::value ));
BOOST_STATIC_ASSERT(( boost::is_constructible< optional< optional<int> >, const optional<int>& >::value ));
BOOST_STATIC_ASSERT(( !boost::is_constructible< optional<int>, const optional< optional<int> >& >::value ));
BOOST_STATIC_ASSERT(( boost::is_constructible<optional<Resource>, const optional<X>&>::value ));
BOOST_STATIC_ASSERT(( !boost::is_constructible<optional<Resource>, const optional<Y>&>::value ));
#endif
#endif
int main() { }