ORCA-C/ORCACDefs/stdint.h
Stephen Heumann 9d018cafe7 Add iso646.h, stdint.h, and inttypes.h headers.
These mostly comply with C99 and C11, with some exceptions noted in comments.
2017-10-21 20:40:41 -05:00

142 lines
3.9 KiB
C

/****************************************************************
*
* stdint.h - integer types
*
* September 2017
* Stephen Heumann
*
****************************************************************/
/*
* Note: This header mostly complies with the C99 and C11 standards,
* except that 64-bit types are not provided because ORCA/C does not
* support them. See comments below for further details.
*/
#ifndef __stdint__
#define __stdint__
/* Exact-width integer types */
typedef signed char int8_t;
typedef short int16_t;
typedef long int32_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned long uint32_t;
/* Minimum-width integer types */
typedef signed char int_least8_t;
typedef short int_least16_t;
typedef long int_least32_t;
typedef unsigned char uint_least8_t;
typedef unsigned short uint_least16_t;
typedef unsigned long uint_least32_t;
/* Fastest minimum-width integer types */
typedef short int_fast8_t; /* Note: 16-bit type */
typedef short int_fast16_t;
typedef long int_fast32_t;
typedef unsigned short uint_fast8_t; /* Note: 16-bit type */
typedef unsigned short uint_fast16_t;
typedef unsigned long uint_fast32_t;
/* Integer types capable of holding object pointers */
typedef long intptr_t;
typedef unsigned long uintptr_t;
/* Greatest-width integer types */
/*
* Note: In C99 and C11, these are required to be at least 64 bits.
* Since ORCA/C does not currently support 64-bit integer types,
* they are currently defined as 32-bit types instead.
*/
typedef long intmax_t;
typedef unsigned long uintmax_t;
/* Limits of exact-width integer types */
#define INT8_MIN (-128)
#define INT16_MIN (-32767-1)
#define INT32_MIN (-2147483647-1)
#define INT8_MAX 127
#define INT16_MAX 32767
#define INT32_MAX 2147483647
#define UINT8_MAX 255
#define UINT16_MAX 65535u
#define UINT32_MAX 4294967295u
/* Limits of minimum-width integer types */
#define INT_LEAST8_MIN (-128)
#define INT_LEAST16_MIN (-32767-1)
#define INT_LEAST32_MIN (-2147483647-1)
#define INT_LEAST8_MAX 127
#define INT_LEAST16_MAX 32767
#define INT_LEAST32_MAX 2147483647
#define UINT_LEAST8_MAX 255
#define UINT_LEAST16_MAX 65535u
#define UINT_LEAST32_MAX 4294967295u
/* Limits of fastest minimum-width integer types */
#define INT_FAST8_MIN (-32767-1)
#define INT_FAST16_MIN (-32767-1)
#define INT_FAST32_MIN (-2147483647-1)
#define INT_FAST8_MAX 32767
#define INT_FAST16_MAX 32767
#define INT_FAST32_MAX 2147483647
#define UINT_FAST8_MAX 65535u
#define UINT_FAST16_MAX 65535u
#define UINT_FAST32_MAX 4294967295u
/* Limits of integer types capable of holding object pointers */
#define INTPTR_MIN (-2147483647-1)
#define INTPTR_MAX 2147483647
#define UINTPTR_MAX 4294967295u
/* Limits of greatest-width integer types */
/* Note: These limits are smaller than C99 and C11 require. */
#define INTMAX_MIN (-2147483647-1)
#define INTMAX_MAX 2147483647
#define UINTMAX_MAX 4294967295u
/* Limits of other integer types */
#define PTRDIFF_MIN (-2147483647-1)
#define PTRDIFF_MAX 2147483647
#define SIG_ATOMIC_MIN (-32767-1)
#define SIG_ATOMIC_MAX 32767
#define SIZE_MAX 4294967295u
#ifndef WCHAR_MIN
#define WCHAR_MIN 0u
#endif
#ifndef WCHAR_MAX
#define WCHAR_MAX 65535u
#endif
/* WINT_MIN and WINT_MAX are not defined because wint_t is not defined. */
/* Macros for minimum-width integer constants */
#define INT8_C(val) (val)
#define INT16_C(val) (val)
#define INT32_C(val) (val ## L)
#define UINT8_C(val) (val)
#define UINT16_C(val) (val ## U)
#define UINT32_C(val) (val ## UL)
/* Macros for greatest-width integer constants */
/* Note: These use 32-bit types, consistent with intmax_t and uintmax_t. */
#define INTMAX_C(val) (val ## L)
#define UINTMAX_C(val) (val ## UL)
#endif