Function: GDSC_INTERSECT
Purpose: return the intersection coordinate word of two subsets
Category: GDS
File: gdsc_intersect.c
Author: W. Zwitser
Use: INTEGER GDSC_INTERSECT( SET, Input character
SUBSET_1 Input integer
SUBSET_2 Input integer
ERROR ) In/Out integer
GDSC_INTERSECT Returns coordinate word of intersecting
sub structure or -1 if sub structures do
not intersect.
SET set name
SUBSET_1 coordinate word of subset 1
SUBSET_2 coordinate word of subset 2
ERROR 0 = successful
<0 = a GDS error
Updates: Mar 1, 1990: WZ, migrated to C.
Oct 31, 1990: WZ, 'naxis', etc. from setsta -> dsc_file.
Aug 3, 1991: KGB, Returns -1 for no intersection.
Mar 24, 1994: JPT, modified to cooperate with GDS server.