--- a/dlist.h Mon Feb 16 18:09:03 2004 +0100
+++ b/dlist.h Mon Feb 16 18:50:28 2004 +0100
@@ -11,66 +11,66 @@
#define LIBTU_DLIST_H
#define LINK_ITEM(LIST, ITEM, NEXT, PREV) \
- (ITEM)->NEXT=NULL; \
- if((LIST)==NULL){ \
- (LIST)=(ITEM); \
- (ITEM)->PREV=(ITEM); \
- }else{ \
- (ITEM)->PREV=(LIST)->PREV; \
- (ITEM)->PREV->NEXT=(ITEM); \
- (LIST)->PREV=(ITEM); \
- }
+ (ITEM)->NEXT=NULL; \
+ if((LIST)==NULL){ \
+ (LIST)=(ITEM); \
+ (ITEM)->PREV=(ITEM); \
+ }else{ \
+ (ITEM)->PREV=(LIST)->PREV; \
+ (ITEM)->PREV->NEXT=(ITEM); \
+ (LIST)->PREV=(ITEM); \
+ }
#define LINK_ITEM_FIRST(LIST, ITEM, NEXT, PREV) \
- (ITEM)->NEXT=(LIST); \
- if((LIST)==NULL){ \
- (ITEM)->PREV=(ITEM); \
- }else{ \
- (ITEM)->PREV=(LIST)->PREV; \
- (LIST)->PREV=(ITEM); \
- } \
- (LIST)=(ITEM);
+ (ITEM)->NEXT=(LIST); \
+ if((LIST)==NULL){ \
+ (ITEM)->PREV=(ITEM); \
+ }else{ \
+ (ITEM)->PREV=(LIST)->PREV; \
+ (LIST)->PREV=(ITEM); \
+ } \
+ (LIST)=(ITEM);
#define LINK_ITEM_LIST LINK_ITEM
#define LINK_ITEM_BEFORE(LIST, BEFORE, ITEM, NEXT, PREV) \
- (ITEM)->NEXT=(BEFORE); \
- (ITEM)->PREV=(BEFORE)->PREV; \
- (BEFORE)->PREV=(ITEM); \
- if((BEFORE)==(LIST)) \
- (LIST)=(ITEM); \
- else \
- (ITEM)->PREV->NEXT=(ITEM)
+ (ITEM)->NEXT=(BEFORE); \
+ (ITEM)->PREV=(BEFORE)->PREV; \
+ (BEFORE)->PREV=(ITEM); \
+ if((BEFORE)==(LIST)) \
+ (LIST)=(ITEM); \
+ else \
+ (ITEM)->PREV->NEXT=(ITEM)
#define LINK_ITEM_AFTER(LIST, AFTER, ITEM, NEXT, PREV) \
- (ITEM)->NEXT=(AFTER)->NEXT; \
- (ITEM)->PREV=(AFTER); \
- (AFTER)->NEXT=(ITEM); \
- if((ITEM)->NEXT==NULL) \
- (LIST)->PREV=(ITEM); \
- else \
- (ITEM)->NEXT->PREV=ITEM;
+ (ITEM)->NEXT=(AFTER)->NEXT; \
+ (ITEM)->PREV=(AFTER); \
+ (AFTER)->NEXT=(ITEM); \
+ if((ITEM)->NEXT==NULL) \
+ (LIST)->PREV=(ITEM); \
+ else \
+ (ITEM)->NEXT->PREV=ITEM;
#define UNLINK_ITEM(LIST, ITEM, NEXT, PREV) \
- if((ITEM)->PREV!=NULL){ \
- if((ITEM)==(LIST)){ \
- (LIST)=(ITEM)->NEXT; \
- if((LIST)!=NULL) \
- (LIST)->PREV=(ITEM)->PREV; \
- }else if((ITEM)->NEXT==NULL){ \
- (ITEM)->PREV->NEXT=NULL; \
- (LIST)->PREV=(ITEM)->PREV; \
- }else{ \
- (ITEM)->PREV->NEXT=(ITEM)->NEXT; \
- (ITEM)->NEXT->PREV=(ITEM)->PREV; \
- } \
- } \
- (ITEM)->NEXT=NULL; \
- (ITEM)->PREV=NULL;
+ if((ITEM)->PREV!=NULL){ \
+ if((ITEM)==(LIST)){ \
+ (LIST)=(ITEM)->NEXT; \
+ if((LIST)!=NULL) \
+ (LIST)->PREV=(ITEM)->PREV; \
+ }else if((ITEM)->NEXT==NULL){ \
+ (ITEM)->PREV->NEXT=NULL; \
+ (LIST)->PREV=(ITEM)->PREV; \
+ }else{ \
+ (ITEM)->PREV->NEXT=(ITEM)->NEXT; \
+ (ITEM)->NEXT->PREV=(ITEM)->PREV; \
+ } \
+ } \
+ (ITEM)->NEXT=NULL; \
+ (ITEM)->PREV=NULL;
#endif /* LIBTU_DLIST_H */