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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include "imfort.h"
# IMGKWD -- Return the value of the named header keyword as a double.
procedure imgkwd (im, keyw, dval, ier)
pointer im # imfort image descriptor
% character*(*) keyw
double dval
int ier
pointer sp, kp
double imgetd()
int errcode()
begin
call smark (sp)
call salloc (kp, SZ_KEYWORD, TY_CHAR)
call f77upk (keyw, Memc[kp], SZ_KEYWORD)
iferr (dval = imgetd (im, Memc[kp])) {
ier = errcode()
call im_seterrop (ier, Memc[kp])
} else
ier = OK
call sfree (sp)
end
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