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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <pkg/rg.h>
# RG_INRANGE -- Is value in the ranges?
int procedure rg_inrange (rg, rval)
pointer rg # Ranges
int rval # Range value to test
int i
begin
# Error check the range pointer.
if (rg == NULL)
call error (0, "Range descriptor undefined")
do i = 1, RG_NRGS(rg) {
if ((RG_X1(rg, i) <= RG_X2(rg, i)) && (rval >= RG_X1(rg, i)) &&
(rval <= RG_X2(rg, i)))
return (YES)
else if ((rval >= RG_X2(rg, i)) && (rval <= RG_X1(rg, i)))
return (YES)
}
return (NO)
end
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