HP 3000 Manuals HP 3000 Manuals
swab
Swaps bytes in an array.
Syntax
void swab (char *from, char *to, int nbytes);
Parameters
from A pointer to the source array.
to A pointer to the target array.
nbytes The number of bytes to copy.
Return Values
None.
Description
This function 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.
The nbytes parameter should be even and non-negative. If nbytes is odd
and positive, swab() uses nbytes-1 instead. If nbytes is negative,
swab() does nothing.