integer/include/boost/stdint.h

//  boost stdint.h header file  ---------------------------------------------//

//  (C) Copyright boost.org 1999. Permission to copy, use, modify, sell
//  and distribute this software is granted provided this copyright
//  notice appears in all copies. This software is provided "as is" without
//  express or implied warranty, and with no claim as to its suitability for
//  any purpose.

//  See http://www.boost.org for most recent version including documentation.

//  NOTE WELL: This is an implementation of the ISO C Standard (1999) stdint.h
//  header.  C++ programs are advised to use <boost/cstdint.hpp> rather than
//  this header.

//  NOTE OF OBSOLESCENCE: In general, this header file cannot detect
//  whether the current translation unit somewhere includes ISO C99
//  <stdint.h> or not.  For example, in case BOOST_SYSTEM_HAS_STDINT_H
//  is not defined and ISO C99 <stdint.h> has been included before,
//  this file will re-define ISO C99 reserved file-scope identifiers
//  such as int8_t (see ISO C99 7.1.3 and 7.18).  Defining the macro
//  BOOST_SYSTEM_HAS_STDINT_H is not sufficient in general, in
//  particular if a partly conformant <stdint.h> header is available
//  on the platform, e.g. Comeau C++ with GNU glibc 2.1.2.
//
//  In order to avoid incompatibilities with ISO C99, this header
//  should not be used at all, and it may be deleted in the future.
//  C++ programs which require ISO C99 <stdint.h> functionality are
//  strongly advised to use <boost/cstdint.hpp> instead, which
//  provides <stdint.h> names in namespace boost, e.g. boost::int8_t.


//  Revision History
//   12 Nov 00  obsoleted (Jens Maurer)
//   23 Sep 00  INTXX_C support added (John Maddock)
//   22 Sep 00  64-bit support for Borland & Microsoft compilers (John Maddock)
//    8 Aug 99  Initial version (Beman Dawes)

#ifndef BOOST_STDINT_H
#define BOOST_STDINT_H

#include <boost/config.hpp>

#ifdef BOOST_SYSTEM_HAS_STDINT_H
#include <stdint.h>

#else

#include <limits.h> // implementation artifact; not part of interface

//  These are fairly safe guesses for some 16-bit, and most 32-bit and 64-bit
//  platforms.  For other systems, they will have to be hand tailored.
//
//  Because the fast types are assumed to be the same as the undecorated types,
//  it may be possible to hand tailor a more efficient implementation.  Such
//  an optimization may be illusionary; on the Intel x86-family 386 on, for
//  example, byte arithmetic and load/stores are as fast as "int" sized ones.

//  8-bit types  -------------------------------------------------------------//

# if UCHAR_MAX == 0xff
     typedef signed char     int8_t;
     typedef signed char     int_least8_t;
     typedef signed char     int_fast8_t;
     typedef unsigned char   uint8_t;
     typedef unsigned char   uint_least8_t;
     typedef unsigned char   uint_fast8_t;
# else
#    error defaults not correct; you must hand modify boost/stdint.h
# endif

//  16-bit types  ------------------------------------------------------------//

# if USHRT_MAX == 0xffff
     typedef short           int16_t;
     typedef short           int_least16_t;
     typedef short           int_fast16_t;
     typedef unsigned short  uint16_t;
     typedef unsigned short  uint_least16_t;
     typedef unsigned short  uint_fast16_t;
# else
#    error defaults not correct; you must hand modify boost/stdint.h
# endif

//  32-bit types  ------------------------------------------------------------//

# if UINT_MAX == 0xffffffff
     typedef int             int32_t;
     typedef int             int_least32_t;
     typedef int             int_fast32_t;
     typedef unsigned int    uint32_t;
     typedef unsigned int    uint_least32_t;
     typedef unsigned int    uint_fast32_t;
# elif ULONG_MAX == 0xffffffff
     typedef long            int32_t;
     typedef long            int_least32_t;
     typedef long            int_fast32_t;
     typedef unsigned long   uint32_t;
     typedef unsigned long   uint_least32_t;
     typedef unsigned long   uint_fast32_t;
# else
#    error defaults not correct; you must hand modify boost/stdint.h
# endif

//  64-bit types + intmax_t and uintmax_t  -----------------------------------//

# if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX)) && !(defined(_WIN32) && defined(__GNUC__))
#    if(defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615) ||  \
        (defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615)
                                                                 // 2**64 - 1
     typedef long long            intmax_t;
     typedef unsigned long long   uintmax_t;
     typedef long long            int64_t;
     typedef long long            int_least64_t;
     typedef long long            int_fast64_t;
     typedef unsigned long long   uint64_t;
     typedef unsigned long long   uint_least64_t;
     typedef unsigned long long   uint_fast64_t;
#    else
#       error defaults not correct; you must hand modify boost/stdint.h
#    endif
# elif ULONG_MAX != 0xffffffff

#    if ULONG_MAX == 18446744073709551615 // 2**64 - 1
     typedef long                 intmax_t;
     typedef unsigned long        uintmax_t;
     typedef long                 int64_t;
     typedef long                 int_least64_t;
     typedef long                 int_fast64_t;
     typedef unsigned long        uint64_t;
     typedef unsigned long        uint_least64_t;
     typedef unsigned long        uint_fast64_t;
#    else
#       error defaults not correct; you must hand modify boost/stdint.h
#    endif
# elif (defined(BOOST_MSVC) && (BOOST_MSVC >= 1100)) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520))
     //
     // we have Borland/Microsoft __int64:
     //
     typedef __int64             intmax_t;
     typedef unsigned __int64    uintmax_t;
     typedef __int64             int64_t;
     typedef __int64             int_least64_t;
     typedef __int64             int_fast64_t;
     typedef unsigned __int64    uint64_t;
     typedef unsigned __int64    uint_least64_t;
     typedef unsigned __int64    uint_fast64_t;
# else // assume no 64-bit integers
#define BOOST_NO_INT64_T
     typedef int32_t              intmax_t;
     typedef uint32_t             uintmax_t;
# endif

#endif  // BOOST_SYSTEM_HAS_STDINT_H not defined
#endif  // BOOST_STDINT_H

/****************************************************

Macro definition section:

Define various INTXX_C macros only if
__STDC_CONSTANT_MACROS is defined.

Undefine the macros if __STDC_CONSTANT_MACROS is
not defined and the macros are (cf <cassert>).

Added 23rd September (John Maddock).

******************************************************/

#if defined(__STDC_CONSTANT_MACROS) && !defined(BOOST__STDC_CONSTANT_MACROS_DEFINED)
#define BOOST__STDC_CONSTANT_MACROS_DEFINED
#if (defined(BOOST_MSVC) && (BOOST_MSVC >= 1100)) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520))
//
// Borland/Microsoft compilers have width specific suffixes:
//
#define INT8_C(value)     value##i8
#define INT16_C(value)    value##i16
#define INT32_C(value)    value##i32
#define INT64_C(value)    value##i64
#ifdef __BORLANDC__
// Borland bug: appending ui8 makes the type
// a signed char!!!!
#define UINT8_C(value)    static_cast<unsigned char>(value##u)
#else
#define UINT8_C(value)    value##ui8
#endif
#define UINT16_C(value)   value##ui16
#define UINT32_C(value)   value##ui32
#define UINT64_C(value)   value##ui64
#define INTMAX_C(value)   value##i64
#define UINTMAX_C(value)  value##ui64

#else
//  do it the old fashioned way:
//  8-bit types  -------------------------------------------------------------//

# if UCHAR_MAX == 0xff
#define INT8_C(value) static_cast<int8_t>(value)
#define UINT8_C(value) static_cast<uint8_t>(value##u)
# endif

//  16-bit types  ------------------------------------------------------------//

# if USHRT_MAX == 0xffff
#define INT16_C(value) static_cast<int16_t>(value)
#define UINT16_C(value) static_cast<uint16_t>(value##u)
# endif

//  32-bit types  ------------------------------------------------------------//

# if UINT_MAX == 0xffffffff
#define INT32_C(value) value
#define UINT32_C(value) value##u
# elif ULONG_MAX == 0xffffffff
#define INT32_C(value) value##L
#define UINT32_C(value) value##uL
# endif

//  64-bit types + intmax_t and uintmax_t  -----------------------------------//

# if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX)) && !(defined(_WIN32) && defined(__GNUC__))
#    if(defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615) ||  \
        (defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615)
#define INT64_C(value) value##LL
#define UINT64_C(value) value##uLL
#    else
#       error defaults not correct; you must hand modify boost/stdint.h
#    endif
# elif ULONG_MAX != 0xffffffff

#    if ULONG_MAX == 18446744073709551615 // 2**64 - 1
#define INT64_C(value) value##L
#define UINT64_C(value) value##uL
#    else
#       error defaults not correct; you must hand modify boost/stdint.h
#    endif
# elif (defined(BOOST_MSVC) && (BOOST_MSVC >= 1100)) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520))
     //
     // we have Borland/Microsoft __int64:
     //
#define INT64_C(value) value##i64
#define UINT64_C(value) value##ui64
# endif

#ifdef BOOST_NO_INT64_T
#define INTMAX_C(value) INT32_C(value)
#define UINTMAX_C(value) UINT32_C(value)
#else
#define INTMAX_C(value) INT64_C(value)
#define UINTMAX_C(value) UINT64_C(value)
#endif

#endif // Borland/MS specific

#elif defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(__STDC_CONSTANT_MACROS)
//
// undef all the macros:
//
#undef INT8_C
#undef INT16_C
#undef INT32_C
#undef INT64_C
#undef UINT8_C
#undef UINT16_C
#undef UINT32_C
#undef UINT64_C
#undef INTMAX_C
#undef UINTMAX_C

#endif // constant macros