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// 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: integral_wrapper.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
// $Revision: 49267 $
// NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION!
#include <boost/mpl/integral_c_tag.hpp>
#include <boost/mpl/aux_/static_cast.hpp>
#include <boost/mpl/aux_/nttp_decl.hpp>
#include <boost/mpl/aux_/config/static_constant.hpp>
#include <boost/mpl/aux_/config/workaround.hpp>
#include <boost/preprocessor/cat.hpp>
#if !defined(AUX_WRAPPER_NAME)
# define AUX_WRAPPER_NAME BOOST_PP_CAT(AUX_WRAPPER_VALUE_TYPE,_)
#endif
#if !defined(AUX_WRAPPER_PARAMS)
# define AUX_WRAPPER_PARAMS(N) BOOST_MPL_AUX_NTTP_DECL(AUX_WRAPPER_VALUE_TYPE, N)
#endif
#if !defined(AUX_WRAPPER_INST)
# if BOOST_WORKAROUND(__MWERKS__, <= 0x2407)
# define AUX_WRAPPER_INST(value) AUX_WRAPPER_NAME< value >
# else
# define AUX_WRAPPER_INST(value) BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE::AUX_WRAPPER_NAME< value >
# endif
#endif
BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN
template< AUX_WRAPPER_PARAMS(N) >
struct AUX_WRAPPER_NAME
{
BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, value = N);
// agurt, 08/mar/03: SGI MIPSpro C++ workaround, have to #ifdef because some
// other compilers (e.g. MSVC) are not particulary happy about it
#if BOOST_WORKAROUND(__EDG_VERSION__, <= 238)
typedef struct AUX_WRAPPER_NAME type;
#else
typedef AUX_WRAPPER_NAME type;
#endif
typedef AUX_WRAPPER_VALUE_TYPE value_type;
typedef integral_c_tag tag;
// have to #ifdef here: some compilers don't like the 'N + 1' form (MSVC),
// while some other don't like 'value + 1' (Borland), and some don't like
// either
#if BOOST_WORKAROUND(__EDG_VERSION__, <= 243)
private:
BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, next_value = BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N + 1)));
BOOST_STATIC_CONSTANT(AUX_WRAPPER_VALUE_TYPE, prior_value = BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N - 1)));
public:
typedef AUX_WRAPPER_INST(next_value) next;
typedef AUX_WRAPPER_INST(prior_value) prior;
#elif BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x561)) \
|| BOOST_WORKAROUND(__IBMCPP__, BOOST_TESTED_AT(502)) \
|| (BOOST_WORKAROUND(__HP_aCC, <= 53800) && (BOOST_WORKAROUND(__hpxstd98, != 1)))
typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N + 1)) ) next;
typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (N - 1)) ) prior;
#else
typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (value + 1)) ) next;
typedef AUX_WRAPPER_INST( BOOST_MPL_AUX_STATIC_CAST(AUX_WRAPPER_VALUE_TYPE, (value - 1)) ) prior;
#endif
// enables uniform function call syntax for families of overloaded
// functions that return objects of both arithmetic ('int', 'long',
// 'double', etc.) and wrapped integral types (for an example, see
// "mpl/example/power.cpp")
operator AUX_WRAPPER_VALUE_TYPE() const { return static_cast<AUX_WRAPPER_VALUE_TYPE>(this->value); }
};
#if !defined(BOOST_NO_INCLASS_MEMBER_INITIALIZATION)
template< AUX_WRAPPER_PARAMS(N) >
AUX_WRAPPER_VALUE_TYPE const AUX_WRAPPER_INST(N)::value;
#endif
BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE
#undef AUX_WRAPPER_NAME
#undef AUX_WRAPPER_PARAMS
#undef AUX_WRAPPER_INST
#undef AUX_WRAPPER_VALUE_TYPE
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Swift