TYPES(5) BSD Programmer's Manual TYPES(5) NAME types - system data types SYNOPSIS #include <sys/types.h> DESCRIPTION The file <sys/types.h> contains defined data types used throughout the system. /* Architecture dependent types. */ typedef unsigned long clock_t; typedef unsigned int size_t; typedef int ssize_t; typedef long time_t; /* Virtual memory objects. */ typedef unsigned long vm_offset_t; typedef unsigned long vm_size_t; /* The longest/most efficient integer register type. */ typedef int32_t register_t; /* Architecture independent types. */ /* Basic integral types of exactly the implied number of bits. */ typedef __signed char int8_t; typedef unsigned char u_int8_t; typedef short int16_t; typedef unsigned short u_int16_t; typedef int int32_t; typedef unsigned int u_int32_t; typedef long long int64_t; typedef unsigned long long u_int64_t; /* Basic integral types of at least the implied number of bits. */ typedef __signed char int8m_t; typedef unsigned char u_int8m_t; typedef short int16m_t; typedef unsigned short u_int16m_t; typedef int int32m_t; typedef unsigned int u_int32m_t; typedef long long int64m_t; typedef unsigned long long u_int64m_t; typedef unsigned long u_long; typedef unsigned int u_int; typedef unsigned short u_short; typedef unsigned char u_char; typedef unsigned int uint; /* Sys V compatibility */ typedef unsigned short ushort; /* Sys V compatibility */ typedef u_int64_t u_quad_t; /* quads */ typedef int64_t quad_t; typedef quad_t * qaddr_t; typedef char * caddr_t; /* core address */ typedef long daddr_t; /* disk address */ typedef unsigned long dev_t; /* device number */ typedef unsigned long fixpt_t; /* fixed point number */ typedef unsigned int gid_t; /* group id */ typedef unsigned long ino_t; /* inode number */ typedef long key_t; /* Sys V IPC key */ typedef u_int16m_t mode_t; /* permissions */ typedef u_int16m_t nlink_t; /* link count */ typedef quad_t off_t; /* file offset */ typedef int pid_t; /* process id */ typedef long segsz_t; /* segment size */ typedef long swblk_t; /* swap offset */ typedef unsigned int uid_t; /* user id */ HISTORY A <sys/types.h> file appeared in Version 7 AT&T UNIX. 4th Berkeley Distribution April 28, 1995 2[top]
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