SWAB(3C) Standard C Library Functions SWAB(3C)
NAME
swab - swap bytes
SYNOPSIS
#include <stdlib.h>
void swab(
const char *src,
char *dest,
ssize_t nbytes);
XPG4, SUS, SUSv2, SUSv3 #include <unistd.h>
void swab(
const void *restrict src,
void *restrict dest,
ssize_t nbytes);
DESCRIPTION
The
swab() function copies
nbytes bytes, which are pointed to by
src,
to the object pointed to by
dest, exchanging adjacent bytes. The
nbytes argument should be even. If
nbytes is odd
swab() copies and
exchanges
nbytes-1 bytes and the disposition of the last byte is
unspecified. If copying takes place between objects that overlap, the
behavior is undefined. If
nbytes is negative,
swab() does nothing.
ERRORS
No errors are defined.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+
SEE ALSO
attributes(7),
standards(7) November 1, 2003 SWAB(3C)
