mirror of https://github.com/YosysHQ/abc.git
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/*
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* Revision Control Information
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*
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* $Source: /vol/opua/opua2/sis/sis-1.2/common/src/sis/avl/RCS/avl.h,v $
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* $Author: sis $
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* $Revision: 1.3 $
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* $Date: 1994/07/15 23:00:40 $
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*
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*/
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#ifndef ABC__misc__avl__avl_h
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#define ABC__misc__avl__avl_h
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ABC_NAMESPACE_HEADER_START
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#define EXTERN
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#ifndef ARGS
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#define ARGS(protos) protos
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#endif
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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#define NIL(type) \
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((type *) 0)
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#define ALLOC(type, num) \
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((type *) malloc(sizeof(type) * (num)))
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#define REALLOC(type, obj, num) \
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((type *) realloc((char *) obj, sizeof(type) * (num)))
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#define FREE(obj) \
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free((char *) (obj))
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typedef struct avl_node_struct avl_node;
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struct avl_node_struct {
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avl_node *left, *right;
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char *key;
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char *value;
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int height;
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};
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typedef struct avl_tree_struct avl_tree;
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struct avl_tree_struct {
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avl_node *root;
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int (*compar)();
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int num_entries;
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int modified;
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};
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typedef struct avl_generator_struct avl_generator;
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struct avl_generator_struct {
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avl_tree *tree;
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avl_node **nodelist;
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int count;
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};
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#define AVL_FORWARD 0
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#define AVL_BACKWARD 1
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EXTERN avl_tree *avl_init_table ARGS((int (*)()));
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EXTERN int avl_delete ARGS((avl_tree *, char **, char **));
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EXTERN int avl_insert ARGS((avl_tree *, char *, char *));
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EXTERN int avl_lookup ARGS((avl_tree *, char *, char **));
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EXTERN int avl_first ARGS((avl_tree *, char **, char **));
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EXTERN int avl_last ARGS((avl_tree *, char **, char **));
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EXTERN int avl_find_or_add ARGS((avl_tree *, char *, char ***));
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EXTERN int avl_count ARGS((avl_tree *));
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EXTERN int avl_numcmp ARGS((char *, char *));
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EXTERN int avl_gen ARGS((avl_generator *, char **, char **));
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EXTERN void avl_foreach ARGS((avl_tree *, void (*)(), int));
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EXTERN void avl_free_table ARGS((avl_tree *, void (*)(), void (*)()));
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EXTERN void avl_free_gen ARGS((avl_generator *));
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EXTERN avl_generator *avl_init_gen ARGS((avl_tree *, int));
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#define avl_is_member(tree, key) avl_lookup(tree, key, (char **) 0)
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#define avl_foreach_item(table, gen, dir, key_p, value_p) \
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for(gen = avl_init_gen(table, dir); \
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avl_gen(gen, key_p, value_p) || (avl_free_gen(gen),0);)
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ABC_NAMESPACE_HEADER_END
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#endif
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