Manual browser: swab(3)
|SWAB(3)||Library Functions Manual||SWAB(3)|
NAMEswab — swap adjacent bytes
LIBRARYStandard C Library (libc, -lc)
swab(const void * restrict src, void * restrict dst, ssize_t len);
DESCRIPTIONThe function swab() copies len bytes from the location referenced by src to the location referenced by dst, swapping adjacent bytes.
If len is negative or zero, swab() does nothing. If len is odd, swab() copies len - 1 bytes and the disposition of the last byte is unspecified.
STANDARDSThe swab() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”).
HISTORYA swab() function appeared in Version 7 AT&T UNIX. It was originally documented to be “useful for carrying binary data between PDP11's and other machines”.
In NetBSD 6.0 the type of len was changed from size_t to ssize_t for POSIX compliance.
|April 30, 2010||NetBSD 7.0|