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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#define import_spp
#define import_knames
#include <iraf.h>
/* ACHTB_ -- Unpack an unsigned byte array into an SPP array.
* The loop runs in the reverse direction so that the unpack can be
* performed in place (a and b can be the same array).
*/
void
ACHTBC (
XCHAR *a,
XCHAR *b,
XINT *npix
)
{
register XUBYTE *ip, *first = (XUBYTE *)a;
register XCHAR *op;
for (ip = &first[*npix], op = &((XCHAR *)b)[*npix]; ip > first; )
*--op = *--ip;
}
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