#include <stdlib.h>
#include <stdio.h>
#include "uthash.h"
typedef struct hs_t {
int id;
int tag;
UT_hash_handle hh;
} hs_t;
static void pr(hs_t **hdpp){
hs_t *el, *tmp, *hdp = *hdpp;
HASH_ITER(hh, hdp, el, tmp){
printf("id %d, tag %d\n",el->id,el->tag);
}
}
int main(int argc, char *argv[]) {
hs_t *hs_head=NULL, *tmp, *replaced=NULL;
tmp = (hs_t*)malloc(sizeof(hs_t));
tmp->id = 10;
tmp->tag = 100;
HASH_REPLACE_INT(hs_head,id,tmp,replaced);
if(replaced == NULL)
printf("added %d %d\n",tmp->id,tmp->tag);
else
printf("ERROR, ended up replacing a value, replaced: %p\n",replaced);
pr(&hs_head);
tmp = (hs_t*)malloc(sizeof(hs_t));
tmp->id=11;
tmp->tag = 101;
HASH_REPLACE_INT(hs_head,id,tmp,replaced);
if(replaced == NULL)
printf("added %d %d\n",tmp->id,tmp->tag);
else
printf("ERROR, ended up replacing a value, replaced: %p\n",replaced);
pr(&hs_head);
tmp = (hs_t*)malloc(sizeof(hs_t));
tmp->id=11;
tmp->tag = 102;
HASH_REPLACE_INT(hs_head,id,tmp,replaced);
if(replaced == NULL)
printf("ERROR, exected to replace a value with key: %d\n",tmp->id);
else
printf("replaced %d that had tag %d with tag %d\n",tmp->id,replaced->tag,tmp->tag);
pr(&hs_head);
return 0;
}