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Location: libtransport.git/include/boost/utility/explicit_operator_bool.hpp
0729d364ca25
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Fix double free in DummyConnectionServer
Do not create shared ptr from this as this lead to double free in
UserRegistryTest::login test. Shared ptr was needed to set event
owner in acceptConnection, actually it is never needed as events
are never filtered by owner. Thus it was removed and there is no
need to create shared ptr from this.
Do not create shared ptr from this as this lead to double free in
UserRegistryTest::login test. Shared ptr was needed to set event
owner in acceptConnection, actually it is never needed as events
are never filtered by owner. Thus it was removed and there is no
need to create shared ptr from this.
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* Copyright Andrey Semashev 2007 - 2013.
* Distributed under 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)
*/
/*!
* \file explicit_operator_bool.hpp
* \author Andrey Semashev
* \date 08.03.2009
*
* This header defines a compatibility macro that implements an unspecified
* \c bool operator idiom, which is superseded with explicit conversion operators in
* C++11.
*/
#ifndef BOOST_CORE_EXPLICIT_OPERATOR_BOOL_HPP
#define BOOST_CORE_EXPLICIT_OPERATOR_BOOL_HPP
#include <boost/config.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
#if !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
/*!
* \brief The macro defines an explicit operator of conversion to \c bool
*
* The macro should be used inside the definition of a class that has to
* support the conversion. The class should also implement <tt>operator!</tt>,
* in terms of which the conversion operator will be implemented.
*/
#define BOOST_EXPLICIT_OPERATOR_BOOL()\
BOOST_FORCEINLINE explicit operator bool () const\
{\
return !this->operator! ();\
}
/*!
* \brief The macro defines a noexcept explicit operator of conversion to \c bool
*
* The macro should be used inside the definition of a class that has to
* support the conversion. The class should also implement <tt>operator!</tt>,
* in terms of which the conversion operator will be implemented.
*/
#define BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT()\
BOOST_FORCEINLINE explicit operator bool () const BOOST_NOEXCEPT\
{\
return !this->operator! ();\
}
/*!
* \brief The macro defines a constexpr explicit operator of conversion to \c bool
*
* The macro should be used inside the definition of a class that has to
* support the conversion. The class should also implement <tt>operator!</tt>,
* in terms of which the conversion operator will be implemented.
*/
#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()\
BOOST_FORCEINLINE BOOST_CONSTEXPR explicit operator bool () const BOOST_NOEXCEPT\
{\
return !this->operator! ();\
}
#else // !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
#if (defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)) && !defined(BOOST_NO_COMPILER_CONFIG)
// Sun C++ 5.3 can't handle the safe_bool idiom, so don't use it
#define BOOST_NO_UNSPECIFIED_BOOL
#endif // (defined(__SUNPRO_CC) && (__SUNPRO_CC <= 0x530)) && !defined(BOOST_NO_COMPILER_CONFIG)
#if !defined(BOOST_NO_UNSPECIFIED_BOOL)
namespace boost {
namespace detail {
#if !defined(_MSC_VER) && !defined(__IBMCPP__)
struct unspecified_bool
{
// NOTE TO THE USER: If you see this in error messages then you tried
// to apply an unsupported operator on the object that supports
// explicit conversion to bool.
struct OPERATORS_NOT_ALLOWED;
static void true_value(OPERATORS_NOT_ALLOWED*) {}
};
typedef void (*unspecified_bool_type)(unspecified_bool::OPERATORS_NOT_ALLOWED*);
#else
// MSVC and VACPP are too eager to convert pointer to function to void* even though they shouldn't
struct unspecified_bool
{
// NOTE TO THE USER: If you see this in error messages then you tried
// to apply an unsupported operator on the object that supports
// explicit conversion to bool.
struct OPERATORS_NOT_ALLOWED;
void true_value(OPERATORS_NOT_ALLOWED*) {}
};
typedef void (unspecified_bool::*unspecified_bool_type)(unspecified_bool::OPERATORS_NOT_ALLOWED*);
#endif
} // namespace detail
} // namespace boost
#define BOOST_EXPLICIT_OPERATOR_BOOL()\
BOOST_FORCEINLINE operator boost::detail::unspecified_bool_type () const\
{\
return (!this->operator! () ? &boost::detail::unspecified_bool::true_value : (boost::detail::unspecified_bool_type)0);\
}
#define BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT()\
BOOST_FORCEINLINE operator boost::detail::unspecified_bool_type () const BOOST_NOEXCEPT\
{\
return (!this->operator! () ? &boost::detail::unspecified_bool::true_value : (boost::detail::unspecified_bool_type)0);\
}
#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()\
BOOST_FORCEINLINE BOOST_CONSTEXPR operator boost::detail::unspecified_bool_type () const BOOST_NOEXCEPT\
{\
return (!this->operator! () ? &boost::detail::unspecified_bool::true_value : (boost::detail::unspecified_bool_type)0);\
}
#else // !defined(BOOST_NO_UNSPECIFIED_BOOL)
#define BOOST_EXPLICIT_OPERATOR_BOOL()\
BOOST_FORCEINLINE operator bool () const\
{\
return !this->operator! ();\
}
#define BOOST_EXPLICIT_OPERATOR_BOOL_NOEXCEPT()\
BOOST_FORCEINLINE operator bool () const BOOST_NOEXCEPT\
{\
return !this->operator! ();\
}
#define BOOST_CONSTEXPR_EXPLICIT_OPERATOR_BOOL()\
BOOST_FORCEINLINE BOOST_CONSTEXPR operator bool () const BOOST_NOEXCEPT\
{\
return !this->operator! ();\
}
#endif // !defined(BOOST_NO_UNSPECIFIED_BOOL)
#endif // !defined(BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS)
#endif // BOOST_CORE_EXPLICIT_OPERATOR_BOOL_HPP
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