[thirdparty/glibc.git] / bits / types.h

/* bits/types.h -- definitions of __*_t types underlying *_t types.
   Copyright (C) 2002-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

/*
 * Never include this file directly; use <sys/types.h> instead.
 */

#ifndef	_BITS_TYPES_H
#define	_BITS_TYPES_H	1

#include <features.h>
#include <bits/wordsize.h>

/* Convenience types.  */
typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;

/* Fixed-size types, underlying types depend on word size and compiler.  */
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
#if __WORDSIZE == 64
typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;
#else
__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;
#endif

/* quad_t is also 64 bits.  */
#if __WORDSIZE == 64
typedef long int __quad_t;
typedef unsigned long int __u_quad_t;
#else
__extension__ typedef long long int __quad_t;
__extension__ typedef unsigned long long int __u_quad_t;
#endif


/* The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
   macros for each of the OS types we define below.  The definitions
   of those macros must use the following macros for underlying types.
   We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
   variants of each of the following integer types on this machine.

	16		-- "natural" 16-bit type (always short)
	32		-- "natural" 32-bit type (always int)
	64		-- "natural" 64-bit type (long or long long)
	LONG32		-- 32-bit type, traditionally long
	QUAD		-- 64-bit type, always long long
	WORD		-- natural type of __WORDSIZE bits (int or long)
	LONGWORD	-- type of __WORDSIZE bits, traditionally long

   We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
   conventional uses of `long' or `long long' type modifiers match the
   types we define, even when a less-adorned type would be the same size.
   This matters for (somewhat) portably writing printf/scanf formats for
   these types, where using the appropriate l or ll format modifiers can
   make the typedefs and the formats match up across all GNU platforms.  If
   we used `long' when it's 64 bits where `long long' is expected, then the
   compiler would warn about the formats not matching the argument types,
   and the programmer changing them to shut up the compiler would break the
   program's portability.

   Here we assume what is presently the case in all the GCC configurations
   we support: long long is always 64 bits, long is always word/address size,
   and int is always 32 bits.  */

#define	__S16_TYPE		short int
#define __U16_TYPE		unsigned short int
#define	__S32_TYPE		int
#define __U32_TYPE		unsigned int
#define __SLONGWORD_TYPE	long int
#define __ULONGWORD_TYPE	unsigned long int
#if __WORDSIZE == 32
# define __SQUAD_TYPE		__quad_t
# define __UQUAD_TYPE		__u_quad_t
# define __SWORD_TYPE		int
# define __UWORD_TYPE		unsigned int
# define __SLONG32_TYPE		long int
# define __ULONG32_TYPE		unsigned long int
# define __S64_TYPE		__quad_t
# define __U64_TYPE		__u_quad_t
/* We want __extension__ before typedef's that use nonstandard base types
   such as `long long' in C89 mode.  */
# define __STD_TYPE		__extension__ typedef
#elif __WORDSIZE == 64
# define __SQUAD_TYPE		long int
# define __UQUAD_TYPE		unsigned long int
# define __SWORD_TYPE		long int
# define __UWORD_TYPE		unsigned long int
# define __SLONG32_TYPE		int
# define __ULONG32_TYPE		unsigned int
# define __S64_TYPE		long int
# define __U64_TYPE		unsigned long int
/* No need to mark the typedef with __extension__.   */
# define __STD_TYPE		typedef
#else
# error
#endif
#include <bits/typesizes.h>	/* Defines __*_T_TYPE macros.  */


__STD_TYPE __DEV_T_TYPE __dev_t;	/* Type of device numbers.  */
__STD_TYPE __UID_T_TYPE __uid_t;	/* Type of user identifications.  */
__STD_TYPE __GID_T_TYPE __gid_t;	/* Type of group identifications.  */
__STD_TYPE __INO_T_TYPE __ino_t;	/* Type of file serial numbers.  */
__STD_TYPE __INO64_T_TYPE __ino64_t;	/* Type of file serial numbers (LFS).*/
__STD_TYPE __MODE_T_TYPE __mode_t;	/* Type of file attribute bitmasks.  */
__STD_TYPE __NLINK_T_TYPE __nlink_t;	/* Type of file link counts.  */
__STD_TYPE __OFF_T_TYPE __off_t;	/* Type of file sizes and offsets.  */
__STD_TYPE __OFF64_T_TYPE __off64_t;	/* Type of file sizes and offsets (LFS).  */
__STD_TYPE __PID_T_TYPE __pid_t;	/* Type of process identifications.  */
__STD_TYPE __FSID_T_TYPE __fsid_t;	/* Type of file system IDs.  */
__STD_TYPE __CLOCK_T_TYPE __clock_t;	/* Type of CPU usage counts.  */
__STD_TYPE __RLIM_T_TYPE __rlim_t;	/* Type for resource measurement.  */
__STD_TYPE __RLIM64_T_TYPE __rlim64_t;	/* Type for resource measurement (LFS).  */
__STD_TYPE __ID_T_TYPE __id_t;		/* General type for IDs.  */
__STD_TYPE __TIME_T_TYPE __time_t;	/* Seconds since the Epoch.  */
__STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds.  */
__STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds.  */

__STD_TYPE __DADDR_T_TYPE __daddr_t;	/* The type of a disk address.  */
__STD_TYPE __KEY_T_TYPE __key_t;	/* Type of an IPC key.  */

/* Clock ID used in clock and timer functions.  */
__STD_TYPE __CLOCKID_T_TYPE __clockid_t;

/* Timer ID returned by `timer_create'.  */
__STD_TYPE __TIMER_T_TYPE __timer_t;

/* Type to represent block size.  */
__STD_TYPE __BLKSIZE_T_TYPE __blksize_t;

/* Types from the Large File Support interface.  */

/* Type to count number of disk blocks.  */
__STD_TYPE __BLKCNT_T_TYPE __blkcnt_t;
__STD_TYPE __BLKCNT64_T_TYPE __blkcnt64_t;

/* Type to count file system blocks.  */
__STD_TYPE __FSBLKCNT_T_TYPE __fsblkcnt_t;
__STD_TYPE __FSBLKCNT64_T_TYPE __fsblkcnt64_t;

/* Type to count file system nodes.  */
__STD_TYPE __FSFILCNT_T_TYPE __fsfilcnt_t;
__STD_TYPE __FSFILCNT64_T_TYPE __fsfilcnt64_t;

/* Type of miscellaneous file system fields.  */
__STD_TYPE __FSWORD_T_TYPE __fsword_t;

__STD_TYPE __SSIZE_T_TYPE __ssize_t; /* Type of a byte count, or error.  */

/* Signed long type used in system calls.  */
__STD_TYPE __SYSCALL_SLONG_TYPE __syscall_slong_t;
/* Unsigned long type used in system calls.  */
__STD_TYPE __SYSCALL_ULONG_TYPE __syscall_ulong_t;

/* These few don't really vary by system, they always correspond
   to one of the other defined types.  */
typedef __off64_t __loff_t;	/* Type of file sizes and offsets (LFS).  */
typedef __quad_t *__qaddr_t;
typedef char *__caddr_t;

/* Duplicates info from stdint.h but this is used in unistd.h.  */
__STD_TYPE __SWORD_TYPE __intptr_t;

/* Duplicate info from sys/socket.h.  */
__STD_TYPE __U32_TYPE __socklen_t;


#undef __STD_TYPE

#endif /* bits/types.h */
Commit	Line	Data
3efdabe7	1	/* bits/types.h -- definitions of ___t types underlying _t types.
d4697bc9	2	Copyright (C) 2002-2014 Free Software Foundation, Inc.
54d79e99	3	This file is part of the GNU C Library.
28f540f4	4
54d79e99	5	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
28f540f4	9
54d79e99 UD	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	13	Lesser General Public License for more details.
28f540f4	14
41bdb6e2	15	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	16	License along with the GNU C Library; if not, see
59ba27a6 PE	17	<http://www.gnu.org/licenses/>. */
28f540f4	18
5107cf1d UD	19	/*
	20	* Never include this file directly; use <sys/types.h> instead.
	21	*/
28f540f4	22
5107cf1d UD	23	#ifndef _BITS_TYPES_H
5107cf1d UD	24	#define _BITS_TYPES_H 1
28f540f4	25
5d47ceca	26	#include <features.h>
3efdabe7	27	#include <bits/wordsize.h>
5d47ceca	28
28f540f4 RM	29	/* Convenience types. */
28f540f4 RM	30	typedef unsigned char __u_char;
3efdabe7	31	typedef unsigned short int __u_short;
28f540f4	32	typedef unsigned int __u_int;
3efdabe7 RM	33	typedef unsigned long int __u_long;
	34
	35	/* Fixed-size types, underlying types depend on word size and compiler. */
	36	typedef signed char __int8_t;
	37	typedef unsigned char __uint8_t;
	38	typedef signed short int __int16_t;
	39	typedef unsigned short int __uint16_t;
	40	typedef signed int __int32_t;
	41	typedef unsigned int __uint32_t;
	42	#if __WORDSIZE == 64
	43	typedef signed long int __int64_t;
	44	typedef unsigned long int __uint64_t;
6a57d931	45	#else
3efdabe7 RM	46	__extension__ typedef signed long long int __int64_t;
	47	__extension__ typedef unsigned long long int __uint64_t;
	48	#endif
	49
806e4a4a UD	50	/* quad_t is also 64 bits. */
806e4a4a UD	51	#if __WORDSIZE == 64
3efdabe7 RM	52	typedef long int __quad_t;
3efdabe7 RM	53	typedef unsigned long int __u_quad_t;
6a57d931	54	#else
806e4a4a UD	55	__extension__ typedef long long int __quad_t;
806e4a4a UD	56	__extension__ typedef unsigned long long int __u_quad_t;
28f540f4	57	#endif
5d47ceca	58
3efdabe7 RM	59
	60	/* The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
	61	macros for each of the OS types we define below. The definitions
	62	of those macros must use the following macros for underlying types.
	63	We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
	64	variants of each of the following integer types on this machine.
	65
	66	16 -- "natural" 16-bit type (always short)
	67	32 -- "natural" 32-bit type (always int)
	68	64 -- "natural" 64-bit type (long or long long)
	69	LONG32 -- 32-bit type, traditionally long
	70	QUAD -- 64-bit type, always long long
	71	WORD -- natural type of __WORDSIZE bits (int or long)
	72	LONGWORD -- type of __WORDSIZE bits, traditionally long
	73
	74	We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
	75	conventional uses of `long' or `long long' type modifiers match the
	76	types we define, even when a less-adorned type would be the same size.
	77	This matters for (somewhat) portably writing printf/scanf formats for
	78	these types, where using the appropriate l or ll format modifiers can
	79	make the typedefs and the formats match up across all GNU platforms. If
	80	we used `long' when it's 64 bits where `long long' is expected, then the
	81	compiler would warn about the formats not matching the argument types,
	82	and the programmer changing them to shut up the compiler would break the
	83	program's portability.
	84
	85	Here we assume what is presently the case in all the GCC configurations
	86	we support: long long is always 64 bits, long is always word/address size,
	87	and int is always 32 bits. */
	88
	89	#define __S16_TYPE short int
	90	#define __U16_TYPE unsigned short int
	91	#define __S32_TYPE int
	92	#define __U32_TYPE unsigned int
	93	#define __SLONGWORD_TYPE long int
	94	#define __ULONGWORD_TYPE unsigned long int
3efdabe7	95	#if __WORDSIZE == 32
a1d335d6 UD	96	# define __SQUAD_TYPE __quad_t
a1d335d6 UD	97	# define __UQUAD_TYPE __u_quad_t
3efdabe7 RM	98	# define __SWORD_TYPE int
	99	# define __UWORD_TYPE unsigned int
	100	# define __SLONG32_TYPE long int
	101	# define __ULONG32_TYPE unsigned long int
	102	# define __S64_TYPE __quad_t
	103	# define __U64_TYPE __u_quad_t
553cc5f9 UD	104	/* We want __extension__ before typedef's that use nonstandard base types
	105	such as `long long' in C89 mode. */
	106	# define __STD_TYPE __extension__ typedef
3efdabe7	107	#elif __WORDSIZE == 64
806e4a4a UD	108	# define __SQUAD_TYPE long int
806e4a4a UD	109	# define __UQUAD_TYPE unsigned long int
3efdabe7 RM	110	# define __SWORD_TYPE long int
	111	# define __UWORD_TYPE unsigned long int
	112	# define __SLONG32_TYPE int
	113	# define __ULONG32_TYPE unsigned int
	114	# define __S64_TYPE long int
	115	# define __U64_TYPE unsigned long int
553cc5f9 UD	116	/* No need to mark the typedef with __extension__. */
553cc5f9 UD	117	# define __STD_TYPE typedef
3efdabe7 RM	118	#else
	119	# error
	120	#endif
	121	#include <bits/typesizes.h> /* Defines ___T_TYPE macros. /
	122
bba446f7 RM	123
	124	__STD_TYPE __DEV_T_TYPE __dev_t; /* Type of device numbers. */
	125	__STD_TYPE __UID_T_TYPE __uid_t; /* Type of user identifications. */
	126	__STD_TYPE __GID_T_TYPE __gid_t; /* Type of group identifications. */
	127	__STD_TYPE __INO_T_TYPE __ino_t; /* Type of file serial numbers. */
	128	__STD_TYPE __INO64_T_TYPE __ino64_t; /* Type of file serial numbers (LFS).*/
	129	__STD_TYPE __MODE_T_TYPE __mode_t; /* Type of file attribute bitmasks. */
	130	__STD_TYPE __NLINK_T_TYPE __nlink_t; /* Type of file link counts. */
	131	__STD_TYPE __OFF_T_TYPE __off_t; /* Type of file sizes and offsets. */
	132	__STD_TYPE __OFF64_T_TYPE __off64_t; /* Type of file sizes and offsets (LFS). */
	133	__STD_TYPE __PID_T_TYPE __pid_t; /* Type of process identifications. */
	134	__STD_TYPE __FSID_T_TYPE __fsid_t; /* Type of file system IDs. */
	135	__STD_TYPE __CLOCK_T_TYPE __clock_t; /* Type of CPU usage counts. */
	136	__STD_TYPE __RLIM_T_TYPE __rlim_t; /* Type for resource measurement. */
	137	__STD_TYPE __RLIM64_T_TYPE __rlim64_t; /* Type for resource measurement (LFS). */
	138	__STD_TYPE __ID_T_TYPE __id_t; /* General type for IDs. */
	139	__STD_TYPE __TIME_T_TYPE __time_t; /* Seconds since the Epoch. */
	140	__STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds. */
	141	__STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds. */
	142
	143	__STD_TYPE __DADDR_T_TYPE __daddr_t; /* The type of a disk address. */
bba446f7	144	__STD_TYPE __KEY_T_TYPE __key_t; /* Type of an IPC key. */
5d47ceca	145
724000bc	146	/* Clock ID used in clock and timer functions. */
bba446f7	147	__STD_TYPE __CLOCKID_T_TYPE __clockid_t;
724000bc MK	148
724000bc MK	149	/* Timer ID returned by `timer_create'. */
bba446f7	150	__STD_TYPE __TIMER_T_TYPE __timer_t;
dfd2257a	151
219aa9e9	152	/* Type to represent block size. */
bba446f7	153	__STD_TYPE __BLKSIZE_T_TYPE __blksize_t;
219aa9e9	154
dfd2257a UD	155	/* Types from the Large File Support interface. */
dfd2257a UD	156
3efdabe7	157	/* Type to count number of disk blocks. */
bba446f7 RM	158	__STD_TYPE __BLKCNT_T_TYPE __blkcnt_t;
bba446f7 RM	159	__STD_TYPE __BLKCNT64_T_TYPE __blkcnt64_t;
dfd2257a UD	160
dfd2257a UD	161	/* Type to count file system blocks. */
bba446f7 RM	162	__STD_TYPE __FSBLKCNT_T_TYPE __fsblkcnt_t;
bba446f7 RM	163	__STD_TYPE __FSBLKCNT64_T_TYPE __fsblkcnt64_t;
dfd2257a	164
3efdabe7	165	/* Type to count file system nodes. */
bba446f7 RM	166	__STD_TYPE __FSFILCNT_T_TYPE __fsfilcnt_t;
bba446f7 RM	167	__STD_TYPE __FSFILCNT64_T_TYPE __fsfilcnt64_t;
dfd2257a	168
3e5aef87 L	169	/* Type of miscellaneous file system fields. */
	170	__STD_TYPE __FSWORD_T_TYPE __fsword_t;
	171
973d66e4	172	__STD_TYPE __SSIZE_T_TYPE __ssize_t; /* Type of a byte count, or error. */
3efdabe7	173
de986b56 L	174	/* Signed long type used in system calls. */
	175	__STD_TYPE __SYSCALL_SLONG_TYPE __syscall_slong_t;
	176	/* Unsigned long type used in system calls. */
	177	__STD_TYPE __SYSCALL_ULONG_TYPE __syscall_ulong_t;
	178
3efdabe7 RM	179	/* These few don't really vary by system, they always correspond
3efdabe7 RM	180	to one of the other defined types. */
3efdabe7 RM	181	typedef __off64_t __loff_t; /* Type of file sizes and offsets (LFS). */
	182	typedef __quad_t *__qaddr_t;
	183	typedef char *__caddr_t;
af69217f	184
5d47ceca	185	/* Duplicates info from stdint.h but this is used in unistd.h. */
bba446f7	186	__STD_TYPE __SWORD_TYPE __intptr_t;
4bae5567	187
750f9af6	188	/* Duplicate info from sys/socket.h. */
bba446f7 RM	189	__STD_TYPE __U32_TYPE __socklen_t;
bba446f7 RM	190
3efdabe7	191
bba446f7	192	#undef __STD_TYPE
750f9af6	193
5107cf1d	194	#endif /* bits/types.h */