swab - phpMan

SWAB(3)                    Linux Programmer’s Manual                   SWAB(3)



NAME
       swab - swap adjacent bytes

SYNOPSIS
       #include <unistd.h>

       void swab(const void *from, void *to, ssize_t n);

DESCRIPTION
       The  swab()  function copies n bytes from the array pointed to by from to the array
       pointed to by to, exchanging adjacent even and odd bytes.  This function is used to
       exchange data between machines that have different low/high byte ordering.

       This function does nothing when n is negative.  When n is positive and odd, it han-
       dles n-1 bytes as above, and does something unspecified with the  last  byte.   (In
       other words, n should be even.)

RETURN VALUE
       The swab() function returns no value.

CONFORMING TO
       SVID 3, BSD 4.3, POSIX 1003.1-2001

SEE ALSO
       bstring(3)



                                  2001-12-15                           SWAB(3)

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