_meta_help.h

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#ifndef _RWSTD_RW_META_HELP_H_INCLUDED
#define _RWSTD_RW_META_HELP_H_INCLUDED
 
#include <rw/_defs.h>
 
_RWSTD_NAMESPACE (__rw) {
 
//
// A compile-time integral constant wrapper. This class template
// encapsulates an integer constant value for metaprogramming.
//
template <class _TypeT, _TypeT _Value>
struct __rw_integral_constant
{
    typedef __rw_integral_constant<_TypeT,_Value> type;
    typedef _TypeT value_type;
 
    static const _TypeT value = _Value;
};
 
#ifndef _RWSTD_NO_STATIC_CONST_MEMBER_DEFINITION
 
template<class _TypeT, _TypeT _Value>
const _TypeT __rw_integral_constant<_TypeT, _Value>::value;
 
#endif    // _RWSTD_NO_STATIC_CONST_MEMBER_DEFINITION
 
//
// Synonym for __rw_integral_constant<bool, true> type.
//
typedef __rw_integral_constant<bool, true>  __rw_true_type;
 
//
// Synonym for __rw_integral_constant<bool, false> type.
//
typedef __rw_integral_constant<bool, false> __rw_false_type;
 
// convenience macros
 
#define _RWSTD_BOOL_CONST(B) _RW::__rw_integral_constant<bool, B>
 
} // namespace __rw
 
 
#endif   // _RWSTD_RW_META_HELP_H_INCLUDED