Re: g_hash_table problem

[Kuang-Chun Cheng <kccheng openate com>]

Hi Jean,

It's not working neither :-(  Is this a bug ?

Regards
KC


Jean Bréfort wrote:

> Le lun 28/06/2004 à 12:15, Kuang-Chun Cheng a écrit :
>  
>
> > Hi,
> >
> > Why the following code not working ?
> > The result will be "KEY aaa NOT FOUND".
> >
> > The key can't be found if I use buf[], and
> > it can be found if I search "aaa" ???
> >
> > Thanks.
> >
> >
> > ----
> >
> > #include <stdio.h>
> > #include <stdlib.h>
> > #include <unistd.h>
> > #include <string.h>
> > #include <glib.h>
> >
> > int main (int argc, char *argv[])
> > {
> > char buf[1024];
> > GHashTable *htab;
> >
> > htab = g_hash_table_new(NULL, NULL);
> >
> > g_hash_table_insert(htab, "aaa", NULL);
> >
> > strcpy(buf, "aaa");
> > if (g_hash_table_lookup(htab, buf)) {
> > printf("KEY %s FOUND\n", buf);
> > } else {
> > printf("KEY %s NOT FOUND\n", buf);
> > }
> >
> > g_hash_table_destroy(htab);
> >
> > exit(0);
> > }
> >    
>
> As you passed NULL pointers to g_hash_table_new, the comparison is made
> on the values ob buf and "aaa" which are their addresses in memory.
> That's why buf cannot be found.
> Use g_hash_table_new (g_str_hash, g_str_equal); instead. 
>