mirror of
https://github.com/boostorg/optional.git
synced 2025-07-23 17:17:17 +02:00
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
// 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/static_assert.hpp"
|
|
#include "boost/optional/optional.hpp"
|
|
|
|
#ifdef __BORLANDC__
|
|
#pragma hdrstop
|
|
#endif
|
|
|
|
|
|
using boost::optional;
|
|
|
|
#if defined BOOST_NO_CXX11_NOEXCEPT
|
|
BOOST_STATIC_ASSERT_MSG(false, "absent noexcept");
|
|
#endif
|
|
|
|
// these 4 classes have different noexcept signatures in move operations
|
|
struct NothrowBoth {
|
|
NothrowBoth() BOOST_NOEXCEPT {};
|
|
NothrowBoth(NothrowBoth&&) BOOST_NOEXCEPT_IF(true) {};
|
|
void operator=(NothrowBoth&&) BOOST_NOEXCEPT_IF(true) {};
|
|
};
|
|
struct NothrowCtor {
|
|
NothrowCtor(NothrowCtor&&) BOOST_NOEXCEPT_IF(true) {};
|
|
void operator=(NothrowCtor&&) BOOST_NOEXCEPT_IF(false) {};
|
|
};
|
|
struct NothrowAssign {
|
|
NothrowAssign(NothrowAssign&&) BOOST_NOEXCEPT_IF(false) {};
|
|
void operator=(NothrowAssign&&) BOOST_NOEXCEPT_IF(true) {};
|
|
};
|
|
struct NothrowNone {
|
|
NothrowNone(NothrowNone&&) BOOST_NOEXCEPT_IF(false) {};
|
|
void operator=(NothrowNone&&) BOOST_NOEXCEPT_IF(false) {};
|
|
};
|
|
|
|
NothrowBoth ntb;
|
|
BOOST_STATIC_ASSERT( BOOST_NOEXCEPT_EXPR( ntb = NothrowBoth() ));
|
|
|
|
void test_noexcept_as_defined() // this is a compile-time test
|
|
{
|
|
BOOST_STATIC_ASSERT(::boost::is_nothrow_move_constructible<NothrowBoth>::value);
|
|
BOOST_STATIC_ASSERT(::boost::is_nothrow_move_assignable<NothrowBoth>::value);
|
|
|
|
BOOST_STATIC_ASSERT(::boost::is_nothrow_move_constructible<NothrowCtor>::value);
|
|
BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<NothrowCtor>::value);
|
|
|
|
BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_constructible<NothrowAssign>::value);
|
|
BOOST_STATIC_ASSERT(::boost::is_nothrow_move_assignable<NothrowAssign>::value);
|
|
|
|
BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_constructible<NothrowNone>::value);
|
|
BOOST_STATIC_ASSERT(!::boost::is_nothrow_move_assignable<NothrowNone>::value);
|
|
}
|
|
|
|
|
|
|
|
int main()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|