HP-UX Reference (11i v1 00/12) - 3 Library Functions N-Z (vol 7)

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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man3/nan.3m
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swab(3C) swab(3C)
NAME
swab() - swap bytes
SYNOPSIS
#include <unistd.h>
void swab(const void *from, void *to, ssize_t nbytes);
DESCRIPTION
swab() copies nbytes bytes pointed to by from to the array pointed to by to, exchanging adjacent even and
odd bytes. It is useful for carrying binary data between byte-swapped and non-byte-swapped machines.
nbytes should be even and non-negative. If nbytes is odd and positive swab() uses nbytes−1 instead. If
nbytes is negative, swab() does nothing.
APPLICATION USAGE
swab() is thread-safe and async-cancel-safe.
STANDARDS CONFORMANCE
swab(): AES, SVID2, SVID3, XPG2, XPG3, XPG4
HP-UX Release 11i: December 2000 − 1 − Section 3−−903
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