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SWAB 3C "Nov 1, 2003"
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(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard
MT-Level MT-Safe
SEE ALSO

attributes(5), standards(5)