Mercurial > MadButterfly

comparison src/tools.h @ 93:c3c41f88e776

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author Thinker K.F. Li <thinker@branda.to>
date Sun, 24 Aug 2008 01:18:58 +0800
parents 9ab15ebc9061
children ca94493b75bb
comparison
equal deleted inserted replaced
92:3f619ae03678 93:c3c41f88e776
43 do { \ 43 do { \
44 (follow)->field = (elm)->field; \ 44 (follow)->field = (elm)->field; \
45 (elm)->field = follow; \ 45 (elm)->field = follow; \
46 } while(0) 46 } while(0)
47 #define STAILQ_REMOVE(q, type, field, elm) \ 47 #define STAILQ_REMOVE(q, type, field, elm) \
48 do { \ 48 ~ do { \
49 if((elm) == (q).head) { \ 49 if((elm) == (q).head) { \
50 (q).head = (elm)->field; \ 50 (q).head = (elm)->field; \
51 if((q).head == NULL) \ 51 if((q).head == NULL) \
52 (q).tail = NULL; \ 52 (q).tail = NULL; \
53 } else { \ 53 } else { \
66 66
67 #define O_ALLOC(type) ((type *)malloc(sizeof(type))) 67 #define O_ALLOC(type) ((type *)malloc(sizeof(type)))
68 68
69 #define OFFSET(type, mem) (((void *)&((type *)NULL)->mem) - NULL) 69 #define OFFSET(type, mem) (((void *)&((type *)NULL)->mem) - NULL)
70 #define MEM2OBJ(var, type, mem) ((type *)((void *)var - OFFSET(type, mem))) 70 #define MEM2OBJ(var, type, mem) ((type *)((void *)var - OFFSET(type, mem)))
71 #define OFF2TYPE(obj, off, type) (*(type *)((void *)(obj) + (off)))
71 72
72 #endif /* __TOOLS_H_ */ 73 #endif /* __TOOLS_H_ */