@node swab, memory
@subheading Syntax

@example
#include <stdlib.h>

void swab(const void *from, void *to, int nbytes);
@end example

@subheading Description

This function copies @var{nbytes} bytes from the address pointed to by
@var{from} to the address pointed by @var{to}, exchanging adjacent even
and odd bytes.  It is useful for carrying binary data between
little-endian and big-endian machines.  The argument @var{nbytes} should
be even, and the buffers @var{from} and @var{to} should not overlap.

@subheading Return Value
  
None.


@subheading Portability

@portability !ansi, !posix