52 #define VertEq(u,v)	(((u)->s == (v)->s) & ((u)->t == (v)->t))  argument
53 #define VertLeq(u,v)	(((u)->s < (v)->s) | \  argument
54                          ((u)->s == (v)->s & (u)->t <= (v)->t))
56 #define VertEq(u,v)	((u)->s == (v)->s && (u)->t == (v)->t)  argument
57 #define VertLeq(u,v)	(((u)->s < (v)->s) || \  argument
58                          ((u)->s == (v)->s && (u)->t <= (v)->t))
61 #define EdgeEval(u,v,w)	__gl_edgeEval(u,v,w)  argument
62 #define EdgeSign(u,v,w)	__gl_edgeSign(u,v,w)  argument
66 #define TransLeq(u,v)	(((u)->t < (v)->t) || \  argument
67                          ((u)->t == (v)->t && (u)->s <= (v)->s))
68 #define TransEval(u,v,w)	__gl_transEval(u,v,w)  argument
69 #define TransSign(u,v,w)	__gl_transSign(u,v,w)  argument
76 #define VertL1dist(u,v)	(ABS(u->s - v->s) + ABS(u->t - v->t))  argument
78 #define VertCCW(u,v,w)	__gl_vertCCW(u,v,w)  argument
80 int		__gl_vertLeq( GLUvertex *u, GLUvertex *v );
81 GLdouble	__gl_edgeEval( GLUvertex *u, GLUvertex *v, GLUvertex *w );
82 GLdouble	__gl_edgeSign( GLUvertex *u, GLUvertex *v, GLUvertex *w );
83 GLdouble	__gl_transEval( GLUvertex *u, GLUvertex *v, GLUvertex *w );
84 GLdouble	__gl_transSign( GLUvertex *u, GLUvertex *v, GLUvertex *w );
85 int		__gl_vertCCW( GLUvertex *u, GLUvertex *v, GLUvertex *w );
88 				    GLUvertex *v );