Graphviz  2.39.20141218.0545
macros.h
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1 /* $Id$ $Revision$ */
2 /* vim:set shiftwidth=4 ts=8: */
3 
4 /*************************************************************************
5  * Copyright (c) 2011 AT&T Intellectual Property
6  * All rights reserved. This program and the accompanying materials
7  * are made available under the terms of the Eclipse Public License v1.0
8  * which accompanies this distribution, and is available at
9  * http://www.eclipse.org/legal/epl-v10.html
10  *
11  * Contributors: See CVS logs. Details at http://www.graphviz.org/
12  *************************************************************************/
13 
14 #ifndef GV_MACROS_H
15 #define GV_MACROS_H
16 
17 #ifndef NOTUSED
18 #define NOTUSED(var) (void) var
19 #endif
20 
21 #ifndef NIL
22 #define NIL(type) ((type)0)
23 #endif
24 
25 #define isPinned(n) (ND_pinned(n) == P_PIN)
26 #define hasPos(n) (ND_pinned(n) > 0)
27 #define isFixed(n) (ND_pinned(n) > P_SET)
28 
29 #define SET_CLUST_NODE(n) (ND_clustnode(n) = TRUE)
30 #define IS_CLUST_NODE(n) (ND_clustnode(n))
31 #define HAS_CLUST_EDGE(g) (GD_flags(g) & 1)
32 #define SET_CLUST_EDGE(g) (GD_flags(g) |= 1)
33 #define EDGE_TYPE(g) (GD_flags(g) & (7 << 1))
34 
35 #ifndef streq
36 #define streq(a,b) (*(a)==*(b)&&!strcmp(a,b))
37 #endif
38 
39 #define XPAD(d) ((d).x += 4*GAP)
40 #define YPAD(d) ((d).y += 2*GAP)
41 #define PAD(d) {XPAD(d); YPAD(d);}
42 
43 #define OTHERDIR(dir) ((dir == CCW) ? CW : CCW)
44 
45 #define NEXTSIDE(side, dir) ((dir == CCW) ? \
46  ((side & 0x8) ? BOTTOM : (side << 1)) : \
47  ((side & 0x1) ? LEFT : (side >> 1)))
48 
49 #endif