#ifndef BOOST_MPL_ASSERT_HPP_INCLUDED | |
#define BOOST_MPL_ASSERT_HPP_INCLUDED | |
// Copyright Aleksey Gurtovoy 2000-2006 | |
// | |
// 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) | |
// | |
// See http://www.boost.org/libs/mpl for documentation. | |
// $Id: assert.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ | |
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ | |
// $Revision: 49267 $ | |
#include <boost/mpl/not.hpp> | |
#include <boost/mpl/aux_/value_wknd.hpp> | |
#include <boost/mpl/aux_/nested_type_wknd.hpp> | |
#include <boost/mpl/aux_/yes_no.hpp> | |
#include <boost/mpl/aux_/na.hpp> | |
#include <boost/mpl/aux_/adl_barrier.hpp> | |
#include <boost/mpl/aux_/config/nttp.hpp> | |
#include <boost/mpl/aux_/config/dtp.hpp> | |
#include <boost/mpl/aux_/config/gcc.hpp> | |
#include <boost/mpl/aux_/config/msvc.hpp> | |
#include <boost/mpl/aux_/config/static_constant.hpp> | |
#include <boost/mpl/aux_/config/pp_counter.hpp> | |
#include <boost/mpl/aux_/config/workaround.hpp> | |
#include <boost/preprocessor/cat.hpp> | |
#include <boost/config.hpp> // make sure 'size_t' is placed into 'std' | |
#include <cstddef> | |
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \ | |
|| (BOOST_MPL_CFG_GCC != 0) \ | |
|| BOOST_WORKAROUND(__IBMCPP__, <= 600) | |
# define BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES | |
#endif | |
#if BOOST_WORKAROUND(__MWERKS__, < 0x3202) \ | |
|| BOOST_WORKAROUND(__EDG_VERSION__, <= 238) \ | |
|| BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \ | |
|| BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x840)) | |
# define BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER | |
#endif | |
// agurt, 10/nov/06: use enums for Borland (which cannot cope with static constants) | |
// and GCC (which issues "unused variable" warnings when static constants are used | |
// at a function scope) | |
#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \ | |
|| (BOOST_MPL_CFG_GCC != 0) | |
# define BOOST_MPL_AUX_ASSERT_CONSTANT(T, expr) enum { expr } | |
#else | |
# define BOOST_MPL_AUX_ASSERT_CONSTANT(T, expr) BOOST_STATIC_CONSTANT(T, expr) | |
#endif | |
BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN | |
struct failed {}; | |
// agurt, 24/aug/04: MSVC 7.1 workaround here and below: return/accept | |
// 'assert<false>' by reference; can't apply it unconditionally -- apparently it | |
// degrades the quality of GCC diagnostics | |
#if BOOST_WORKAROUND(BOOST_MSVC, == 1310) | |
# define AUX778076_ASSERT_ARG(x) x& | |
#else | |
# define AUX778076_ASSERT_ARG(x) x | |
#endif | |
template< bool C > struct assert { typedef void* type; }; | |
template<> struct assert<false> { typedef AUX778076_ASSERT_ARG(assert) type; }; | |
template< bool C > | |
int assertion_failed( typename assert<C>::type ); | |
template< bool C > | |
struct assertion | |
{ | |
static int failed( assert<false> ); | |
}; | |
template<> | |
struct assertion<true> | |
{ | |
static int failed( void* ); | |
}; | |
struct assert_ | |
{ | |
#if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) | |
template< typename T1, typename T2 = na, typename T3 = na, typename T4 = na > struct types {}; | |
#endif | |
static assert_ const arg; | |
enum relations { equal = 1, not_equal, greater, greater_equal, less, less_equal }; | |
}; | |
#if !defined(BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES) | |
bool operator==( failed, failed ); | |
bool operator!=( failed, failed ); | |
bool operator>( failed, failed ); | |
bool operator>=( failed, failed ); | |
bool operator<( failed, failed ); | |
bool operator<=( failed, failed ); | |
#if defined(__EDG_VERSION__) | |
template< bool (*)(failed, failed), long x, long y > struct assert_relation {}; | |
# define BOOST_MPL_AUX_ASSERT_RELATION(x, y, r) assert_relation<r,x,y> | |
#else | |
template< BOOST_MPL_AUX_NTTP_DECL(long, x), BOOST_MPL_AUX_NTTP_DECL(long, y), bool (*)(failed, failed) > | |
struct assert_relation {}; | |
# define BOOST_MPL_AUX_ASSERT_RELATION(x, y, r) assert_relation<x,y,r> | |
#endif | |
#else // BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES | |
boost::mpl::aux::weighted_tag<1>::type operator==( assert_, assert_ ); | |
boost::mpl::aux::weighted_tag<2>::type operator!=( assert_, assert_ ); | |
boost::mpl::aux::weighted_tag<3>::type operator>( assert_, assert_ ); | |
boost::mpl::aux::weighted_tag<4>::type operator>=( assert_, assert_ ); | |
boost::mpl::aux::weighted_tag<5>::type operator<( assert_, assert_ ); | |
boost::mpl::aux::weighted_tag<6>::type operator<=( assert_, assert_ ); | |
template< assert_::relations r, long x, long y > struct assert_relation {}; | |
#endif | |
#if !defined(BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER) | |
template< bool > struct assert_arg_pred_impl { typedef int type; }; | |
template<> struct assert_arg_pred_impl<true> { typedef void* type; }; | |
template< typename P > struct assert_arg_pred | |
{ | |
typedef typename P::type p_type; | |
typedef typename assert_arg_pred_impl< p_type::value >::type type; | |
}; | |
template< typename P > struct assert_arg_pred_not | |
{ | |
typedef typename P::type p_type; | |
BOOST_MPL_AUX_ASSERT_CONSTANT( bool, p = !p_type::value ); | |
typedef typename assert_arg_pred_impl<p>::type type; | |
}; | |
template< typename Pred > | |
failed ************ (Pred::************ | |
assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type ) | |
); | |
template< typename Pred > | |
failed ************ (boost::mpl::not_<Pred>::************ | |
assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type ) | |
); | |
template< typename Pred > | |
AUX778076_ASSERT_ARG(assert<false>) | |
assert_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type ); | |
template< typename Pred > | |
AUX778076_ASSERT_ARG(assert<false>) | |
assert_not_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type ); | |
#else // BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER | |
template< bool c, typename Pred > struct assert_arg_type_impl | |
{ | |
typedef failed ************ Pred::* mwcw83_wknd; | |
typedef mwcw83_wknd ************* type; | |
}; | |
template< typename Pred > struct assert_arg_type_impl<true,Pred> | |
{ | |
typedef AUX778076_ASSERT_ARG(assert<false>) type; | |
}; | |
template< typename Pred > struct assert_arg_type | |
: assert_arg_type_impl< BOOST_MPL_AUX_VALUE_WKND(BOOST_MPL_AUX_NESTED_TYPE_WKND(Pred))::value, Pred > | |
{ | |
}; | |
template< typename Pred > | |
typename assert_arg_type<Pred>::type | |
assert_arg(void (*)(Pred), int); | |
template< typename Pred > | |
typename assert_arg_type< boost::mpl::not_<Pred> >::type | |
assert_not_arg(void (*)(Pred), int); | |
# if !defined(BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES) | |
template< long x, long y, bool (*r)(failed, failed) > | |
typename assert_arg_type_impl< false,BOOST_MPL_AUX_ASSERT_RELATION(x,y,r) >::type | |
assert_rel_arg( BOOST_MPL_AUX_ASSERT_RELATION(x,y,r) ); | |
# else | |
template< assert_::relations r, long x, long y > | |
typename assert_arg_type_impl< false,assert_relation<r,x,y> >::type | |
assert_rel_arg( assert_relation<r,x,y> ); | |
# endif | |
#endif // BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER | |
#undef AUX778076_ASSERT_ARG | |
BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE | |
// BOOST_MPL_ASSERT((pred<x,...>)) | |
#define BOOST_MPL_ASSERT(pred) \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
boost::mpl::assertion_failed<false>( \ | |
boost::mpl::assert_arg( (void (*) pred)0, 1 ) \ | |
) \ | |
) \ | |
) \ | |
/**/ | |
// BOOST_MPL_ASSERT_NOT((pred<x,...>)) | |
#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) | |
# define BOOST_MPL_ASSERT_NOT(pred) \ | |
enum { \ | |
BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
boost::mpl::assertion<false>::failed( \ | |
boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \ | |
) \ | |
) \ | |
}\ | |
/**/ | |
#else | |
# define BOOST_MPL_ASSERT_NOT(pred) \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
boost::mpl::assertion_failed<false>( \ | |
boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \ | |
) \ | |
) \ | |
) \ | |
/**/ | |
#endif | |
// BOOST_MPL_ASSERT_RELATION(x, ==|!=|<=|<|>=|>, y) | |
#if defined(BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES) | |
# if !defined(BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER) | |
// agurt, 9/nov/06: 'enum' below is a workaround for gcc 4.0.4/4.1.1 bugs #29522 and #29518 | |
# define BOOST_MPL_ASSERT_RELATION_IMPL(counter, x, rel, y) \ | |
enum { BOOST_PP_CAT(mpl_assert_rel_value,counter) = (x rel y) }; \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
boost::mpl::assertion_failed<BOOST_PP_CAT(mpl_assert_rel_value,counter)>( \ | |
(boost::mpl::failed ************ ( boost::mpl::assert_relation< \ | |
boost::mpl::assert_::relations( sizeof( \ | |
boost::mpl::assert_::arg rel boost::mpl::assert_::arg \ | |
) ) \ | |
, x \ | |
, y \ | |
>::************)) 0 ) \ | |
) \ | |
) \ | |
/**/ | |
# else | |
# define BOOST_MPL_ASSERT_RELATION_IMPL(counter, x, rel, y) \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assert_rel,counter) = sizeof( \ | |
boost::mpl::assert_::arg rel boost::mpl::assert_::arg \ | |
) \ | |
); \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( bool, BOOST_PP_CAT(mpl_assert_rel_value,counter) = (x rel y) ); \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
boost::mpl::assertion_failed<BOOST_PP_CAT(mpl_assert_rel_value,counter)>( \ | |
boost::mpl::assert_rel_arg( boost::mpl::assert_relation< \ | |
boost::mpl::assert_::relations(BOOST_PP_CAT(mpl_assert_rel,counter)) \ | |
, x \ | |
, y \ | |
>() ) \ | |
) \ | |
) \ | |
) \ | |
/**/ | |
# endif | |
# define BOOST_MPL_ASSERT_RELATION(x, rel, y) \ | |
BOOST_MPL_ASSERT_RELATION_IMPL(BOOST_MPL_AUX_PP_COUNTER(), x, rel, y) \ | |
/**/ | |
#else // !BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES | |
# if defined(BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER) | |
# define BOOST_MPL_ASSERT_RELATION(x, rel, y) \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
boost::mpl::assertion_failed<(x rel y)>( boost::mpl::assert_rel_arg( \ | |
boost::mpl::BOOST_MPL_AUX_ASSERT_RELATION(x,y,(&boost::mpl::operator rel))() \ | |
) ) \ | |
) \ | |
) \ | |
/**/ | |
# else | |
# define BOOST_MPL_ASSERT_RELATION(x, rel, y) \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
boost::mpl::assertion_failed<(x rel y)>( (boost::mpl::failed ************ ( \ | |
boost::mpl::BOOST_MPL_AUX_ASSERT_RELATION(x,y,(&boost::mpl::operator rel))::************))0 ) \ | |
) \ | |
) \ | |
/**/ | |
# endif | |
#endif | |
// BOOST_MPL_ASSERT_MSG( (pred<x,...>::value), USER_PROVIDED_MESSAGE, (types<x,...>) ) | |
#if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3202)) | |
# define BOOST_MPL_ASSERT_MSG_IMPL( counter, c, msg, types_ ) \ | |
struct msg; \ | |
typedef struct BOOST_PP_CAT(msg,counter) : boost::mpl::assert_ \ | |
{ \ | |
using boost::mpl::assert_::types; \ | |
static boost::mpl::failed ************ (msg::************ assert_arg()) types_ \ | |
{ return 0; } \ | |
} BOOST_PP_CAT(mpl_assert_arg,counter); \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
boost::mpl::assertion<(c)>::failed( BOOST_PP_CAT(mpl_assert_arg,counter)::assert_arg() ) \ | |
) \ | |
) \ | |
/**/ | |
#else | |
# define BOOST_MPL_ASSERT_MSG_IMPL( counter, c, msg, types_ ) \ | |
struct msg; \ | |
typedef struct BOOST_PP_CAT(msg,counter) : boost::mpl::assert_ \ | |
{ \ | |
static boost::mpl::failed ************ (msg::************ assert_arg()) types_ \ | |
{ return 0; } \ | |
} BOOST_PP_CAT(mpl_assert_arg,counter); \ | |
BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
std::size_t \ | |
, BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
boost::mpl::assertion_failed<(c)>( BOOST_PP_CAT(mpl_assert_arg,counter)::assert_arg() ) \ | |
) \ | |
) \ | |
/**/ | |
#endif | |
#define BOOST_MPL_ASSERT_MSG( c, msg, types_ ) \ | |
BOOST_MPL_ASSERT_MSG_IMPL( BOOST_MPL_AUX_PP_COUNTER(), c, msg, types_ ) \ | |
/**/ | |
#endif // BOOST_MPL_ASSERT_HPP_INCLUDED |