include/search.h

   1 /*      $NetBSD: search.h,v 1.18 2005/07/06 15:47:15 drochner Exp $     */
   2
   3 /*
   4  * Written by J.T. Conklin <jtc@NetBSD.org>
   5  * Public domain.
   6  */
   7
   8 #ifndef _SEARCH_H_
   9 #define _SEARCH_H_
  10
  11 #include <sys/cdefs.h>
  12 #include <machine/ansi.h>
  13
  14 #ifdef  _BSD_SIZE_T_
  15 typedef _BSD_SIZE_T_    size_t;
  16 #undef  _BSD_SIZE_T_
  17 #endif
  18
  19 typedef struct entry {
  20         char *key;
  21         void *data;
  22 } ENTRY;
  23
  24 typedef enum {
  25         FIND, ENTER
  26 } ACTION;
  27
  28 typedef enum {
  29         preorder,
  30         postorder,
  31         endorder,
  32         leaf
  33 } VISIT;
  34
  35 #ifdef _SEARCH_PRIVATE
  36 typedef struct node {
  37         char         *key;
  38         struct node  *llink, *rlink;
  39 } node_t;
  40 #endif
  41
  42 __BEGIN_DECLS
  43 #ifndef __BSEARCH_DECLARED
  44 #define __BSEARCH_DECLARED
  45 /* also in stdlib.h */
  46 void    *bsearch(const void *, const void *, size_t, size_t,
  47                       int (*)(const void *, const void *));
  48 #endif /* __BSEARCH_DECLARED */
  49 int      hcreate(size_t);
  50 void     hdestroy(void);
  51 ENTRY   *hsearch(ENTRY, ACTION);
  52
  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     insque(void *, void *);
  58 void     remque(void *);
  59
  60 void    *tdelete(const void * __restrict, void ** __restrict,
  61                       int (*)(const void *, const void *));
  62 void    *tfind(const void *, void * const *,
  63                       int (*)(const void *, const void *));
  64 void    *tsearch(const void *, void **,
  65                       int (*)(const void *, const void *));
  66 void     twalk(const void *, void (*)(const void *, VISIT, int));
  67 __END_DECLS
  68
  69 #endif /* !_SEARCH_H_ */