genstructs/htable/main.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 #include "htable.h"
   6
   7 unsigned int djb_hash(const void *key)
   8 {
   9     unsigned int i, hash = 5381;
  10     char *str = (char *)key;
  11
  12     for (i = 0; i < strlen(str); i++)
  13         hash = ((hash << 5) + hash) + str[i];
  14
  15     return (hash & 0x7FFFFFFF);
  16 }
  17
  18 int mystrcmp(const void *arg1, const void *arg2)
  19 {
  20     return (strcmp((char *) arg1, (char *) arg2));
  21 }
  22
  23 void myprintf(const void *key, const void *data)
  24 {
  25     printf("%s(%s) ", (char *)key, (char *)data);
  26 }
  27
  28 int main(void)
  29 {
  30     htable_t htable;
  31     char *p = malloc(100);
  32     char *s = malloc(100);
  33     char *t = malloc(100);
  34     char *q = malloc(100);
  35
  36     strcpy(p, "stathis");
  37     strcpy(s, "maria");
  38     strcpy(t, "kostas");
  39     strcpy(q, "eleni");
  40
  41     /* Initialize table */
  42     if (htable_init(&htable, 1, 1, djb_hash, mystrcmp, myprintf) == HT_NOMEM) {
  43         perror("malloc");
  44         exit(EXIT_FAILURE);
  45     }
  46
  47     htable_insert(&htable, "stathis", p);
  48     htable_insert(&htable, "maria", s);
  49     htable_insert(&htable, "kostas", t);
  50     htable_insert(&htable, "eleni", q);
  51     htable_print(&htable);
  52
  53     /* Free memory */
  54     htable_free_all_obj(&htable);
  55     htable_free(&htable);
  56
  57     return EXIT_SUCCESS;
  58 }