mirror of
https://github.com/boostorg/integer.git
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302 lines
9.8 KiB
C++
302 lines
9.8 KiB
C++
// boost cstdint.hpp 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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// Revision History
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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_SYSTEM_HAS_STDINT_H
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# include <stdint.h> // implementation artifact; not part of interface
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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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#else // BOOST_SYSTEM_HAS_STDINT_H
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# include <limits.h> // implementation artifact; not part of interface
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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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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/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(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX)
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# if (defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615U) || (defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615U) || (defined(ULONGLONG_MAX) && ULONGLONG_MAX == 18446744073709551615U)
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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/cstdint.hpp
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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/cstdint.hpp
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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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} // namespace boost
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#endif // BOOST_SYSTEM_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 (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 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(ULLONG_MAX) || defined(ULONG_LONG_MAX) || defined(ULONGLONG_MAX)
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# if (defined(ULLONG_MAX) && ULLONG_MAX == 18446744073709551615U) || \
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(defined(ULONG_LONG_MAX) && ULONG_LONG_MAX == 18446744073709551615U) || (defined(ULONGLONG_MAX) && ULONGLONG_MAX == 18446744073709551615U)
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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/cstdint.hpp
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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/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)
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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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