man pages section 3: Basic Library Functions

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Updated: July 2014
 
 

swab(3C)

Name

swab - swap bytes

Synopsis

#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
Committed
MT-Level
MT-Safe
Standard

See Also

attributes(5), standards(5)