39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 01.03.2016
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*
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* generic dynamically linked list
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*
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*/
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// TOP
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#if !defined(FRED_LINKED_NODE_MACROS_H)
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#define FRED_LINKED_NODE_MACROS_H
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#define dll_init_sentinel(s) (s)->next=(s),(s)->prev=(s)
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#define dll_insert(p,n) (n)->next=(p)->next,(n)->prev=(p),(p)->next=(n),(n)->next->prev=(n)
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#define dll_insert_back(p,n) (n)->prev=(p)->prev,(n)->next=(p),(p)->prev=(n),(n)->prev->next=(n)
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#define dll_remove(n) (n)->next->prev=(n)->prev,(n)->prev->next=(n)->next
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#define zdll_push_back_(f,l,n) if(f==0){n->next=n->prev=0;f=l=n;}else{n->prev=l;n->next=0;l->next=n;l=n;}
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#define zdll_push_back(f,l,n) do{ zdll_push_back_((f),(l),(n)) }while(0)
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#define zdll_remove_front_(f,l,n) if(f==l){f=l=0;}else{f=f->next;f->prev=0;}
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#define zdll_remove_back_(f,l,n) if(f==l){f=l=0;}else{l=l->prev;l->next=0;}
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#define zdll_remove_(f,l,n) if(f==n){zdll_remove_front_(f,l,n);}else if(l==n){zdll_remove_back_(f,l,n);}else{dll_remove(n);}
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#define zdll_remove(f,l,n) do{ zdll_remove_((f),(l),(n)) }while(0)
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#define sll_clear(f,l) (f)=(l)=0
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#define sll_push(f,l,n) if((f)==0&&(l)==0){(f)=(l)=(n);}else{(l)->next=(n);(l)=(n);}(l)->next=0
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#define sll_pop(f,l) if((f)!=(l)){(f)=(f)->next;}else{(f)=(l)=0;}
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#define sll_init_sentinel(s) do{ (s)->next=(s); }while(0)
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#define sll_insert(p,v) do{ (v)->next=(p)->next; (p)->next = (v); }while(0)
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#define sll_remove(p,v) do{ Assert((p)->next == (v)); (p)->next = (v)->next; }while(0)
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#endif
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// BOTTOM
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