mirror of
https://github.com/boostorg/integer.git
synced 2025-11-04 10:11:37 +01:00
447 lines
14 KiB
C++
447 lines
14 KiB
C++
// boost cstdint.hpp header file ------------------------------------------//
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// (C) Copyright Beman Dawes 1999.
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// (C) Copyright Jens Mauer 2001
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// (C) Copyright John Maddock 2001
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// Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/integer for documentation.
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// Revision History
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// 31 Oct 01 use BOOST_HAS_LONG_LONG to check for "long long" (Jens M.)
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// 16 Apr 01 check LONGLONG_MAX when looking for "long long" (Jens Maurer)
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// 23 Jan 01 prefer "long" over "int" for int32_t and intmax_t (Jens Maurer)
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// 12 Nov 00 Merged <boost/stdint.h> (Jens Maurer)
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// 23 Sep 00 Added INTXX_C macro support (John Maddock).
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// 22 Sep 00 Better 64-bit support (John Maddock)
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// 29 Jun 00 Reimplement to avoid including stdint.h within namespace boost
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// 8 Aug 99 Initial version (Beman Dawes)
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#ifndef BOOST_CSTDINT_HPP
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#define BOOST_CSTDINT_HPP
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#include <boost/config.hpp>
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#ifdef BOOST_HAS_STDINT_H
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// The following #include is an implementation artifact; not part of interface.
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# ifdef __hpux
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// HP-UX has a vaguely nice <stdint.h> in a non-standard location
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# include <inttypes.h>
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# ifdef __STDC_32_MODE__
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// this is triggered with GCC, because it defines __cplusplus < 199707L
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# define BOOST_NO_INT64_T
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# endif
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# elif defined(__FreeBSD__) || defined(__IBMCPP__) || defined(_AIX)
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# include <inttypes.h>
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# else
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# include <stdint.h>
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// There is a bug in Cygwin two _C macros
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# if defined(__STDC_CONSTANT_MACROS) && defined(__CYGWIN__)
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# undef INTMAX_C
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# undef UINTMAX_C
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# define INTMAX_C(c) c##LL
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# define UINTMAX_C(c) c##ULL
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# endif
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# endif
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#ifdef __QNX__
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// QNX (Dinkumware stdlib) defines these as non-standard names.
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// Reflect to the standard names.
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typedef ::intleast8_t int_least8_t;
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typedef ::intfast8_t int_fast8_t;
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typedef ::uintleast8_t uint_least8_t;
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typedef ::uintfast8_t uint_fast8_t;
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typedef ::intleast16_t int_least16_t;
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typedef ::intfast16_t int_fast16_t;
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typedef ::uintleast16_t uint_least16_t;
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typedef ::uintfast16_t uint_fast16_t;
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typedef ::intleast32_t int_least32_t;
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typedef ::intfast32_t int_fast32_t;
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typedef ::uintleast32_t uint_least32_t;
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typedef ::uintfast32_t uint_fast32_t;
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# ifndef BOOST_NO_INT64_T
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typedef ::intleast64_t int_least64_t;
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typedef ::intfast64_t int_fast64_t;
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typedef ::uintleast64_t uint_least64_t;
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typedef ::uintfast64_t uint_fast64_t;
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# endif
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#endif
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namespace boost
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{
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using ::int8_t;
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using ::int_least8_t;
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using ::int_fast8_t;
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using ::uint8_t;
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using ::uint_least8_t;
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using ::uint_fast8_t;
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using ::int16_t;
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using ::int_least16_t;
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using ::int_fast16_t;
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using ::uint16_t;
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using ::uint_least16_t;
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using ::uint_fast16_t;
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using ::int32_t;
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using ::int_least32_t;
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using ::int_fast32_t;
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using ::uint32_t;
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using ::uint_least32_t;
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using ::uint_fast32_t;
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# ifndef BOOST_NO_INT64_T
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using ::int64_t;
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using ::int_least64_t;
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using ::int_fast64_t;
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using ::uint64_t;
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using ::uint_least64_t;
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using ::uint_fast64_t;
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# endif
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using ::intmax_t;
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using ::uintmax_t;
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} // namespace boost
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#elif defined(__FreeBSD__) && (__FreeBSD__ <= 4) || defined(__osf__)
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// FreeBSD and Tru64 have an <inttypes.h> that contains much of what we need.
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# include <inttypes.h>
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namespace boost {
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using ::int8_t;
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typedef int8_t int_least8_t;
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typedef int8_t int_fast8_t;
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using ::uint8_t;
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typedef uint8_t uint_least8_t;
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typedef uint8_t uint_fast8_t;
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using ::int16_t;
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typedef int16_t int_least16_t;
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typedef int16_t int_fast16_t;
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using ::uint16_t;
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typedef uint16_t uint_least16_t;
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typedef uint16_t uint_fast16_t;
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using ::int32_t;
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typedef int32_t int_least32_t;
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typedef int32_t int_fast32_t;
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using ::uint32_t;
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typedef uint32_t uint_least32_t;
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typedef uint32_t uint_fast32_t;
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# ifndef BOOST_NO_INT64_T
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using ::int64_t;
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typedef int64_t int_least64_t;
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typedef int64_t int_fast64_t;
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using ::uint64_t;
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typedef uint64_t uint_least64_t;
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typedef uint64_t uint_fast64_t;
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typedef int64_t intmax_t;
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typedef uint64_t uintmax_t;
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# else
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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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} // namespace boost
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#else // BOOST_HAS_STDINT_H
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# include <boost/limits.hpp> // implementation artifact; not part of interface
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# include <limits.h> // needed for limits macros
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namespace boost
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{
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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/cstdint.hpp
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# endif
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// 16-bit types -----------------------------------------------------------//
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# if USHRT_MAX == 0xffff
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# if defined(__crayx1)
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// The Cray X1 has a 16-bit short, however it is not recommend
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// for use in performance critical code.
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typedef short int16_t;
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typedef short int_least16_t;
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typedef int 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 int uint_fast16_t;
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# else
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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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# endif
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# elif (USHRT_MAX == 0xffffffff) && defined(CRAY)
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// no 16-bit types on Cray:
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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 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/cstdint.hpp
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# endif
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// 32-bit types -----------------------------------------------------------//
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# if 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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# elif 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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# else
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# error defaults not correct; you must hand modify boost/cstdint.hpp
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# endif
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// 64-bit types + intmax_t and uintmax_t ----------------------------------//
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# if defined(BOOST_HAS_LONG_LONG) && \
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!defined(BOOST_MSVC) && !defined(__BORLANDC__) && \
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(!defined(__GLIBCPP__) || defined(_GLIBCPP_USE_LONG_LONG)) && \
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(defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
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# if defined(__hpux)
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// HP-UX's value of ULONG_LONG_MAX is unusable in preprocessor expressions
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# elif (defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615ULL) || (defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615ULL) || (defined(ULONGLONG_MAX) && ULONGLONG_MAX == 18446744073709551615ULL)
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// 2**64 - 1
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# else
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# error defaults not correct; you must hand modify boost/cstdint.hpp
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# endif
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typedef ::boost::long_long_type intmax_t;
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typedef ::boost::ulong_long_type uintmax_t;
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typedef ::boost::long_long_type int64_t;
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typedef ::boost::long_long_type int_least64_t;
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typedef ::boost::long_long_type int_fast64_t;
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typedef ::boost::ulong_long_type uint64_t;
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typedef ::boost::ulong_long_type uint_least64_t;
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typedef ::boost::ulong_long_type uint_fast64_t;
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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/cstdint.hpp
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# endif
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# elif defined(__GNUC__) && defined(BOOST_HAS_LONG_LONG)
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__extension__ typedef long long intmax_t;
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__extension__ typedef unsigned long long uintmax_t;
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__extension__ typedef long long int64_t;
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__extension__ typedef long long int_least64_t;
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__extension__ typedef long long int_fast64_t;
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__extension__ typedef unsigned long long uint64_t;
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__extension__ typedef unsigned long long uint_least64_t;
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__extension__ typedef unsigned long long uint_fast64_t;
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# elif defined(BOOST_HAS_MS_INT64)
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//
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// we have Borland/Intel/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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} // namespace boost
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#endif // BOOST_HAS_STDINT_H
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#endif // BOOST_CSTDINT_HPP
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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 2000 (John Maddock).
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Modified 11th September 2001 to be excluded when
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BOOST_HAS_STDINT_H is defined (John Maddock).
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******************************************************/
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#if defined(__STDC_CONSTANT_MACROS) && !defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(BOOST_HAS_STDINT_H)
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# define BOOST__STDC_CONSTANT_MACROS_DEFINED
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# if defined(BOOST_HAS_MS_INT64)
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//
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// Borland/Intel/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 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<boost::int8_t>(value)
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# define UINT8_C(value) static_cast<boost::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<boost::int16_t>(value)
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# define UINT16_C(value) static_cast<boost::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(BOOST_HAS_LONG_LONG) && \
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(defined(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX))
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# if defined(__hpux)
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// HP-UX's value of ULONG_LONG_MAX is unusable in preprocessor expressions
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# elif (defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615U) || \
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(defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615U) || \
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(defined(ULONGLONG_MAX) && ULONGLONG_MAX == 18446744073709551615U)
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# else
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# error defaults not correct; you must hand modify boost/cstdint.hpp
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# endif
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# define INT64_C(value) value##LL
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# define UINT64_C(value) value##uLL
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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/cstdint.hpp
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# endif
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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/Microsoft specific width suffixes
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#elif defined(BOOST__STDC_CONSTANT_MACROS_DEFINED) && !defined(__STDC_CONSTANT_MACROS) && !defined(BOOST_HAS_STDINT_H)
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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 // __STDC_CONSTANT_MACROS_DEFINED etc.
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