githubmirror/libusb

msvc/stdint.h
256 строк7 KB
Pete Batard
Windows: MS project files part 1 - support files & preliminaries
14 июн 2011, 00:06
14 июн 2011, 00:06c1e7543
/**
 * This file has no copyright assigned and is placed in the Public Domain.
 * This file was originally part of the w64 mingw-runtime package.
 */

/* ISO C9x  7.18  Integer types <stdint.h>
 * Based on ISO/IEC SC22/WG14 9899 Committee draft (SC22 N2794)
 *
 *  THIS SOFTWARE IS NOT COPYRIGHTED
 *
 *  Contributor: Danny Smith <danny_r_smith_2001@yahoo.co.nz>
 *  Modified for libusb/MSVC: Pete Batard <pbatard@gmail.com>
 *
 *  This source code is offered for use in the public domain. You may
 *  use, modify or distribute it freely.
 *
 *  This code is distributed in the hope that it will be useful but
 *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
 *  DISCLAIMED. This includes but is not limited to warranties of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 *  Date: 2010-04-02
 */

#ifndef _MSC_VER
#error This header should only be used with Microsoft compilers
#endif

#ifndef _STDINT_H
#define _STDINT_H

#ifndef _INTPTR_T_DEFINED
#define _INTPTR_T_DEFINED
#ifndef __intptr_t_defined
#define __intptr_t_defined
#undef intptr_t
#ifdef _WIN64
  typedef __int64 intptr_t;
#else
  typedef int intptr_t;
#endif /* _WIN64 */
#endif /* __intptr_t_defined */
#endif /* _INTPTR_T_DEFINED */

#ifndef _UINTPTR_T_DEFINED
#define _UINTPTR_T_DEFINED
#ifndef __uintptr_t_defined
#define __uintptr_t_defined
#undef uintptr_t
#ifdef _WIN64
  typedef unsigned __int64 uintptr_t;
#else
  typedef unsigned int uintptr_t;
#endif /* _WIN64 */
#endif /* __uintptr_t_defined */
#endif /* _UINTPTR_T_DEFINED */

#ifndef _PTRDIFF_T_DEFINED
#define _PTRDIFF_T_DEFINED
#ifndef _PTRDIFF_T_
#define _PTRDIFF_T_
#undef ptrdiff_t
#ifdef _WIN64
  typedef __int64 ptrdiff_t;
#else
  typedef int ptrdiff_t;
#endif /* _WIN64 */
#endif /* _PTRDIFF_T_ */
#endif /* _PTRDIFF_T_DEFINED */

#ifndef _WCHAR_T_DEFINED
#define _WCHAR_T_DEFINED
#ifndef __cplusplus
  typedef unsigned short wchar_t;
#endif /* C++ */
#endif /* _WCHAR_T_DEFINED */

#ifndef _WCTYPE_T_DEFINED
#define _WCTYPE_T_DEFINED
#ifndef _WINT_T
#define _WINT_T
  typedef unsigned short wint_t;
  typedef unsigned short wctype_t;
#endif /* _WINT_T */
#endif /* _WCTYPE_T_DEFINED */

/* 7.18.1.1  Exact-width integer types */
typedef __int8 int8_t;
typedef unsigned __int8   uint8_t;
typedef __int16  int16_t;
typedef unsigned __int16  uint16_t;
typedef __int32  int32_t;
typedef unsigned __int32  uint32_t;
typedef __int64  int64_t;
typedef unsigned __int64   uint64_t;

/* 7.18.1.2  Minimum-width integer types */
typedef signed char int_least8_t;
typedef unsigned char   uint_least8_t;
typedef short  int_least16_t;
typedef unsigned short  uint_least16_t;
typedef int  int_least32_t;
typedef unsigned   uint_least32_t;
typedef __int64  int_least64_t;
typedef unsigned __int64   uint_least64_t;

/*  7.18.1.3  Fastest minimum-width integer types
 *  Not actually guaranteed to be fastest for all purposes
 *  Here we use the exact-width types for 8 and 16-bit ints.
 */
typedef __int8 int_fast8_t;
typedef unsigned __int8 uint_fast8_t;
typedef __int16  int_fast16_t;
typedef unsigned __int16  uint_fast16_t;
typedef __int32  int_fast32_t;
typedef unsigned  __int32  uint_fast32_t;
typedef __int64  int_fast64_t;
typedef unsigned __int64   uint_fast64_t;

/* 7.18.1.5  Greatest-width integer types */
typedef __int64  intmax_t;
typedef unsigned __int64   uintmax_t;

/* 7.18.2  Limits of specified-width integer types */

/* 7.18.2.1  Limits of exact-width integer types */
#define INT8_MIN (-128)
#define INT16_MIN (-32768)
#define INT32_MIN (-2147483647 - 1)
#define INT64_MIN  (-9223372036854775807LL - 1)

#define INT8_MAX 127
#define INT16_MAX 32767
#define INT32_MAX 2147483647
#define INT64_MAX 9223372036854775807LL

#define UINT8_MAX 255
#define UINT16_MAX 65535
#define UINT32_MAX 0xffffffffU  /* 4294967295U */
#define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */

/* 7.18.2.2  Limits of minimum-width integer types */
#define INT_LEAST8_MIN INT8_MIN
#define INT_LEAST16_MIN INT16_MIN
#define INT_LEAST32_MIN INT32_MIN
#define INT_LEAST64_MIN INT64_MIN

#define INT_LEAST8_MAX INT8_MAX
#define INT_LEAST16_MAX INT16_MAX
#define INT_LEAST32_MAX INT32_MAX
#define INT_LEAST64_MAX INT64_MAX

#define UINT_LEAST8_MAX UINT8_MAX
#define UINT_LEAST16_MAX UINT16_MAX
#define UINT_LEAST32_MAX UINT32_MAX
#define UINT_LEAST64_MAX UINT64_MAX

/* 7.18.2.3  Limits of fastest minimum-width integer types */
#define INT_FAST8_MIN INT8_MIN
#define INT_FAST16_MIN INT16_MIN
#define INT_FAST32_MIN INT32_MIN
#define INT_FAST64_MIN INT64_MIN

#define INT_FAST8_MAX INT8_MAX
#define INT_FAST16_MAX INT16_MAX
#define INT_FAST32_MAX INT32_MAX
#define INT_FAST64_MAX INT64_MAX

#define UINT_FAST8_MAX UINT8_MAX
#define UINT_FAST16_MAX UINT16_MAX
#define UINT_FAST32_MAX UINT32_MAX
#define UINT_FAST64_MAX UINT64_MAX

/* 7.18.2.4  Limits of integer types capable of holding
    object pointers */
#ifdef _WIN64
#define INTPTR_MIN INT64_MIN
#define INTPTR_MAX INT64_MAX
#define UINTPTR_MAX UINT64_MAX
#else
#define INTPTR_MIN INT32_MIN
#define INTPTR_MAX INT32_MAX
#define UINTPTR_MAX UINT32_MAX
#endif

/* 7.18.2.5  Limits of greatest-width integer types */
#define INTMAX_MIN INT64_MIN
#define INTMAX_MAX INT64_MAX
#define UINTMAX_MAX UINT64_MAX

/* 7.18.3  Limits of other integer types */
#ifdef _WIN64
#define PTRDIFF_MIN INT64_MIN
#define PTRDIFF_MAX INT64_MAX
#else
#define PTRDIFF_MIN INT32_MIN
#define PTRDIFF_MAX INT32_MAX
#endif

#define SIG_ATOMIC_MIN INT32_MIN
#define SIG_ATOMIC_MAX INT32_MAX

#ifndef SIZE_MAX
#ifdef _WIN64
#define SIZE_MAX UINT64_MAX
#else
#define SIZE_MAX UINT32_MAX
#endif
#endif

#ifndef WCHAR_MIN  /* also in wchar.h */
#define WCHAR_MIN 0U
#define WCHAR_MAX 0xffffU
#endif

/*
 * wint_t is unsigned short for compatibility with MS runtime
 */
#define WINT_MIN 0U
#define WINT_MAX 0xffffU


/* 7.18.4  Macros for integer constants */

/* 7.18.4.1  Macros for minimum-width integer constants

    Accoding to Douglas Gwyn <gwyn@arl.mil>:
	"This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
	9899:1999 as initially published, the expansion was required
	to be an integer constant of precisely matching type, which
	is impossible to accomplish for the shorter types on most
	platforms, because C99 provides no standard way to designate
	an integer constant with width less than that of type int.
	TC1 changed this to require just an integer constant
	*expression* with *promoted* type."

	The trick used here is from Clive D W Feather.
*/

#define INT8_C(val) (INT_LEAST8_MAX-INT_LEAST8_MAX+(val))
#define INT16_C(val) (INT_LEAST16_MAX-INT_LEAST16_MAX+(val))
#define INT32_C(val) (INT_LEAST32_MAX-INT_LEAST32_MAX+(val))
/*  The 'trick' doesn't work in C89 for long long because, without
    suffix, (val) will be evaluated as int, not intmax_t */
#define INT64_C(val) val##i64

#define UINT8_C(val) (val)
#define UINT16_C(val) (val)
#define UINT32_C(val) (val##i32)
#define UINT64_C(val) val##ui64

/* 7.18.4.2  Macros for greatest-width integer constants */
#define INTMAX_C(val) val##i64
#define UINTMAX_C(val) val##ui64

#endif