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This software may only be used by you under license from AT&T Corp.
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("AT&T"). A copy of AT&T's Source Code Agreement is available at
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AT&T's Internet website having the URL:
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<http://www.research.att.com/sw/tools/graphviz/license/source.html>
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If you received this software without first entering into a license
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with AT&T, you have an infringing copy of this software and cannot use
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it without violating AT&T's intellectual property rights.
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#ifndef _PATHUTIL_INCLUDE
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#define _PATHUTIL_INCLUDE
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#define TRUE (NOT(FALSE))
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extern COORD area2 (Ppoint_t, Ppoint_t, Ppoint_t);
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extern COORD dist2 (Ppoint_t, Ppoint_t);
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extern int intersect(Ppoint_t a,Ppoint_t b,Ppoint_t c,Ppoint_t d);
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int in_poly(Ppoly_t argpoly, Ppoint_t q);
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Ppoly_t copypoly(Ppoly_t);
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void freepoly(Ppoly_t);