include/search.h

   1 /*-
   2  * Written by J.T. Conklin <jtc@netbsd.org>
   3  * Public domain.
   4  *
   5  *      $NetBSD: search.h,v 1.12 1999/02/22 10:34:28 christos Exp $
   6  * $FreeBSD: src/include/search.h,v 1.10 2002/10/16 14:29:23 robert Exp $
   7  */
   8
   9 #ifndef _SEARCH_H_
  10 #define _SEARCH_H_
  11
  12 #include <sys/cdefs.h>
  13 #include <machine/stdint.h>
  14
  15 #ifndef _SIZE_T_DECLARED
  16 typedef __size_t        size_t;
  17 #define _SIZE_T_DECLARED
  18 #endif
  19
  20 typedef struct entry {
  21         char    *key;
  22         void    *data;
  23 } ENTRY;
  24
  25 typedef enum {
  26         FIND, ENTER
  27 } ACTION;
  28
  29 typedef enum {
  30         preorder,
  31         postorder,
  32         endorder,
  33         leaf
  34 } VISIT;
  35
  36 #ifdef _SEARCH_PRIVATE
  37 typedef struct node {
  38         char         *key;
  39         struct node  *llink, *rlink;
  40 } node_t;
  41
  42 struct que_elem {
  43         struct que_elem *next;
  44         struct que_elem *prev;
  45 };
  46 #endif
  47
  48 __BEGIN_DECLS
  49 int      hcreate(size_t);
  50 void     hdestroy(void);
  51 ENTRY   *hsearch(ENTRY, ACTION);
  52 void     insque(void *, void *);
  53 void    *lfind(const void *, const void *, size_t *, size_t,
  54                int (*)(const void *, const void *));
  55 void    *lsearch(const void *, void *, size_t *, size_t,
  56                  int (*)(const void *, const void *));
  57 void     remque(void *);
  58 void    *tdelete(const void * __restrict, void ** __restrict,
  59                  int (*)(const void *, const void *));
  60 void    *tfind(const void *, void * const *,
  61                int (*)(const void *, const void *));
  62 void    *tsearch(const void *, void **, int (*)(const void *, const void *));
  63 void     twalk(const void *, void (*)(const void *, VISIT, int));
  64 __END_DECLS
  65
  66 #endif /* !_SEARCH_H_ */