поменять местами соседние байты (swap adjacent bytes)
Имя (Name)
swab - swap adjacent bytes
Синопсис (Synopsis)
#define _XOPEN_SOURCE /* See feature_test_macros(7) */
#include <unistd.h>
void swab(const void *restrict from, void *restrict to, ssize_t n);
Описание (Description)
The swab() function copies n bytes from the array pointed to by
from to the array pointed to by to, exchanging adjacent even and
odd bytes. This function is used to exchange data between
machines that have different low/high byte ordering.
This function does nothing when n is negative. When n is
positive and odd, it handles n-1 bytes as above, and does
something unspecified with the last byte. (In other words, n
should be even.)
Возвращаемое значение (Return value)
The swab() function returns no value.
Атрибуты (Attributes)
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│swab() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
Стандарты (Conforming to)
POSIX.1-2001, POSIX.1-2008, SVr4, 4.3BSD.
Смотри также (See also)
bstring(3)
