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IntBits.h

Go to the documentation of this file.

#ifndef CLASSLIB_INT_BITS_H
# define CLASSLIB_INT_BITS_H

//<<<<<< INCLUDES                                                       >>>>>>

# include "classlib/utils/BitTraits.h"
# include "classlib/sysapi/nonstdint.h"

namespace lat {
//<<<<<< PUBLIC DEFINES                                                 >>>>>>
//<<<<<< PUBLIC CONSTANTS                                               >>>>>>
//<<<<<< PUBLIC TYPES                                                   >>>>>>
//<<<<<< PUBLIC VARIABLES                                               >>>>>>
//<<<<<< PUBLIC FUNCTIONS                                               >>>>>>
//<<<<<< CLASS DECLARATIONS                                             >>>>>>

template <unsigned int N>
struct IntBits
{
    // `UExact' and `SExact' are defined only for the actual types
    typedef typename IntBits<N+1>::UFast        UFast;
    typedef typename IntBits<N+1>::SFast        SFast;
    typedef typename IntBits<N+1>::ULeast       ULeast;
    typedef typename IntBits<N+1>::SLeast       SLeast;
};

# if defined CLASSLIB_INT8_MAX
template <>
struct IntBits<8>
{
    static const unsigned int   Bits = 8;

    typedef int8_t              SExact;
    typedef uint8_t             UExact;

    typedef int_least8_t        SLeast;
    typedef uint_least8_t       ULeast;

    typedef int_fast8_t         SFast;
    typedef uint_fast8_t        UFast;
};
# endif

# if defined CLASSLIB_INT16_MAX
template <>
struct IntBits<16>
{
    static const unsigned int   Bits = 16;

    typedef int16_t             SExact;
    typedef uint16_t            UExact;

    typedef int_least16_t       SLeast;
    typedef uint_least16_t      ULeast;

    typedef int_fast16_t        SFast;
    typedef uint_fast16_t       UFast;
};
# endif

# if defined CLASSLIB_INT32_MAX
template <>
struct IntBits<32>
{
    static const unsigned int   Bits = 32;

    typedef int32_t             SExact;
    typedef uint32_t            UExact;

    typedef int_least32_t       SLeast;
    typedef uint_least32_t      ULeast;

    typedef int_fast32_t        SFast;
    typedef uint_fast32_t       UFast;
};
# endif

# if defined CLASSLIB_INT64_MAX
template <>
struct IntBits<64>
{
    static const unsigned int   Bits = 64;

    typedef int64_t             SExact;
    typedef uint64_t            UExact;

    typedef int_least64_t       SLeast;
    typedef uint_least64_t      ULeast;

    typedef int_fast64_t        SFast;
    typedef uint_fast64_t       UFast;
};
# endif

//<<<<<< INLINE PUBLIC FUNCTIONS                                        >>>>>>
//<<<<<< INLINE MEMBER FUNCTIONS                                        >>>>>>

} // namespace lat
#endif // CLASSLIB_INT_BITS_H

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