Type | Description |
caddr_t | core address |
clock_t | counter of clock ticks |
comp_t | compressed clock ticks |
dev_t | device numbers |
fd_set | file descriptor sets |
fpos_t | file position |
gid_t | numeric group IDs |
ino_t | i-node numbers |
mode_t | file type , file creation mode |
nlink_t | link counts for directory entries |
off_t | file sizes and offsets(signed) |
pid_t | process IDs and process group IDs(signed) |
ptrdiff_t | result of subtracting two pointers(signed) |
rlim_t | resource limits |
sig_atomic_t | data type that can be accessed atomically |
sigset_t | signal set |
size_t | sizes of objects(such as strings)(unsigned) |
ssize_t | functions that return a count of bytes(signed)(read,write) |
time_t | counter of seconds of calendar time |
uid_t | numeric user IDs |
wchar_t | can represent all distinct character codes |