forked from boostorg/integer
273 lines
9.5 KiB
C
273 lines
9.5 KiB
C
// boost stdint.h header file ---------------------------------------------//
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// (C) Copyright boost.org 1999. Permission to copy, use, modify, sell
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// and distribute this software is granted provided this copyright
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// notice appears in all copies. This software is provided "as is" without
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// express or implied warranty, and with no claim as to its suitability for
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// any purpose.
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// See http://www.boost.org for most recent version including documentation.
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// NOTE WELL: This is an implementation of the ISO C Standard (1999) stdint.h
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// header. C++ programs are advised to use <boost/cstdint.hpp> rather than
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// this header.
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// NOTE OF OBSOLESCENCE: In general, this header file cannot detect
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// whether the current translation unit somewhere includes ISO C99
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// <stdint.h> or not. For example, in case BOOST_SYSTEM_HAS_STDINT_H
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// is not defined and ISO C99 <stdint.h> has been included before,
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// this file will re-define ISO C99 reserved file-scope identifiers
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// such as int8_t (see ISO C99 7.1.3 and 7.18). Defining the macro
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// BOOST_SYSTEM_HAS_STDINT_H is not sufficient in general, in
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// particular if a partly conformant <stdint.h> header is available
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// on the platform, e.g. Comeau C++ with GNU glibc 2.1.2.
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//
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// In order to avoid incompatibilities with ISO C99, this header
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// should not be used at all, and it may be deleted in the future.
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// C++ programs which require ISO C99 <stdint.h> functionality are
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// strongly advised to use <boost/cstdint.hpp> instead, which
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// provides <stdint.h> names in namespace boost, e.g. boost::int8_t.
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// Revision History
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// 12 Nov 00 obsoleted (Jens Maurer)
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// 23 Sep 00 INTXX_C support added (John Maddock)
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// 22 Sep 00 64-bit support for Borland & Microsoft compilers (John Maddock)
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// 8 Aug 99 Initial version (Beman Dawes)
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#ifndef BOOST_STDINT_H
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#define BOOST_STDINT_H
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#include <boost/config.hpp>
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#ifdef BOOST_SYSTEM_HAS_STDINT_H
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#include <stdint.h>
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#else
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#include <limits.h> // implementation artifact; not part of interface
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// These are fairly safe guesses for some 16-bit, and most 32-bit and 64-bit
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// platforms. For other systems, they will have to be hand tailored.
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//
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// Because the fast types are assumed to be the same as the undecorated types,
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// it may be possible to hand tailor a more efficient implementation. Such
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// an optimization may be illusionary; on the Intel x86-family 386 on, for
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// example, byte arithmetic and load/stores are as fast as "int" sized ones.
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// 8-bit types -------------------------------------------------------------//
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# if UCHAR_MAX == 0xff
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typedef signed char int8_t;
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typedef signed char int_least8_t;
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typedef signed char int_fast8_t;
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typedef unsigned char uint8_t;
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typedef unsigned char uint_least8_t;
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typedef unsigned char uint_fast8_t;
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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// 16-bit types ------------------------------------------------------------//
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# if USHRT_MAX == 0xffff
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typedef short int16_t;
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typedef short int_least16_t;
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typedef short int_fast16_t;
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typedef unsigned short uint16_t;
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typedef unsigned short uint_least16_t;
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typedef unsigned short uint_fast16_t;
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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// 32-bit types ------------------------------------------------------------//
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# if UINT_MAX == 0xffffffff
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typedef int int32_t;
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typedef int int_least32_t;
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typedef int int_fast32_t;
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typedef unsigned int uint32_t;
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typedef unsigned int uint_least32_t;
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typedef unsigned int uint_fast32_t;
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# elif ULONG_MAX == 0xffffffff
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typedef long int32_t;
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typedef long int_least32_t;
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typedef long int_fast32_t;
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typedef unsigned long uint32_t;
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typedef unsigned long uint_least32_t;
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typedef unsigned long uint_fast32_t;
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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// 64-bit types + intmax_t and uintmax_t -----------------------------------//
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# if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX)) && !(defined(_WIN32) && defined(__GNUC__))
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# if(defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615) || \
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(defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615)
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// 2**64 - 1
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typedef long long intmax_t;
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typedef unsigned long long uintmax_t;
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typedef long long int64_t;
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typedef long long int_least64_t;
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typedef long long int_fast64_t;
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typedef unsigned long long uint64_t;
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typedef unsigned long long uint_least64_t;
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typedef unsigned long long uint_fast64_t;
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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# elif ULONG_MAX != 0xffffffff
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# if ULONG_MAX == 18446744073709551615 // 2**64 - 1
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typedef long intmax_t;
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typedef unsigned long uintmax_t;
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typedef long int64_t;
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typedef long int_least64_t;
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typedef long int_fast64_t;
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typedef unsigned long uint64_t;
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typedef unsigned long uint_least64_t;
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typedef unsigned long uint_fast64_t;
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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# elif (defined(BOOST_MSVC) && (BOOST_MSVC >= 1100)) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520))
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//
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// we have Borland/Microsoft __int64:
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//
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typedef __int64 intmax_t;
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typedef unsigned __int64 uintmax_t;
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typedef __int64 int64_t;
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typedef __int64 int_least64_t;
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typedef __int64 int_fast64_t;
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typedef unsigned __int64 uint64_t;
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typedef unsigned __int64 uint_least64_t;
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typedef unsigned __int64 uint_fast64_t;
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# else // assume no 64-bit integers
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#define BOOST_NO_INT64_T
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typedef int32_t intmax_t;
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typedef uint32_t uintmax_t;
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# endif
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#endif // BOOST_SYSTEM_HAS_STDINT_H not defined
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#endif // BOOST_STDINT_H
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/****************************************************
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Macro definition section:
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Define various INTXX_C macros only if
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__STDC_CONSTANT_MACROS is defined.
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Undefine the macros if __STDC_CONSTANT_MACROS is
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not defined and the macros are (cf <cassert>).
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Added 23rd September (John Maddock).
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******************************************************/
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#if defined(__STDC_CONSTANT_MACROS) && !defined(BOOST__STDC_CONSTANT_MACROS_DEFINED)
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#define BOOST__STDC_CONSTANT_MACROS_DEFINED
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#if (defined(BOOST_MSVC) && (BOOST_MSVC >= 1100)) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520))
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//
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// Borland/Microsoft compilers have width specific suffixes:
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//
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#define INT8_C(value) value##i8
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#define INT16_C(value) value##i16
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#define INT32_C(value) value##i32
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#define INT64_C(value) value##i64
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#ifdef __BORLANDC__
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// Borland bug: appending ui8 makes the type
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// a signed char!!!!
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#define UINT8_C(value) static_cast<unsigned char>(value##u)
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#else
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#define UINT8_C(value) value##ui8
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#endif
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#define UINT16_C(value) value##ui16
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#define UINT32_C(value) value##ui32
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#define UINT64_C(value) value##ui64
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#define INTMAX_C(value) value##i64
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#define UINTMAX_C(value) value##ui64
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#else
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// do it the old fashioned way:
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// 8-bit types -------------------------------------------------------------//
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# if UCHAR_MAX == 0xff
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#define INT8_C(value) static_cast<int8_t>(value)
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#define UINT8_C(value) static_cast<uint8_t>(value##u)
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# endif
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// 16-bit types ------------------------------------------------------------//
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# if USHRT_MAX == 0xffff
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#define INT16_C(value) static_cast<int16_t>(value)
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#define UINT16_C(value) static_cast<uint16_t>(value##u)
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# endif
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// 32-bit types ------------------------------------------------------------//
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# if UINT_MAX == 0xffffffff
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#define INT32_C(value) value
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#define UINT32_C(value) value##u
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# elif ULONG_MAX == 0xffffffff
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#define INT32_C(value) value##L
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#define UINT32_C(value) value##uL
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# endif
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// 64-bit types + intmax_t and uintmax_t -----------------------------------//
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# if (defined(ULLONG_MAX) || defined(ULONG_LONG_MAX)) && !(defined(_WIN32) && defined(__GNUC__))
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# if(defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615) || \
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(defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615)
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#define INT64_C(value) value##LL
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#define UINT64_C(value) value##uLL
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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# elif ULONG_MAX != 0xffffffff
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# if ULONG_MAX == 18446744073709551615 // 2**64 - 1
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#define INT64_C(value) value##L
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#define UINT64_C(value) value##uL
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# else
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# error defaults not correct; you must hand modify boost/stdint.h
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# endif
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# elif (defined(BOOST_MSVC) && (BOOST_MSVC >= 1100)) || (defined(__BORLANDC__) && (__BORLANDC__ >= 0x520))
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//
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// we have Borland/Microsoft __int64:
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//
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#define INT64_C(value) value##i64
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#define UINT64_C(value) value##ui64
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# endif
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#ifdef BOOST_NO_INT64_T
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#define INTMAX_C(value) INT32_C(value)
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#define UINTMAX_C(value) UINT32_C(value)
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#else
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#define INTMAX_C(value) INT64_C(value)
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#define UINTMAX_C(value) UINT64_C(value)
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#endif
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#endif // Borland/MS specific
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#elif defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(__STDC_CONSTANT_MACROS)
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//
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// undef all the macros:
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//
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#undef INT8_C
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#undef INT16_C
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#undef INT32_C
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#undef INT64_C
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#undef UINT8_C
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#undef UINT16_C
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#undef UINT32_C
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#undef UINT64_C
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#undef INTMAX_C
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#undef UINTMAX_C
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#endif // constant macros
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