Comments on: Iterators and hash tables

By: Zeeshan Ali

Zeeshan Ali — Sat, 08 Dec 2007 15:12:45 +0000

“I agree that it’s just a bit of syntactic sugar but a handy bit of syntactic sugar.”

Agreed. :)

By: barisione

barisione — Sat, 08 Dec 2007 12:07:15 +0000

I agree that it’s just a bit of syntactic sugar but a handy bit of syntactic sugar.

get_keys() and get_values() are useful but in this case they are not as handy as iter_init()/_next() and you have to free the list and to do a lookup.

By: Mathias Hasselmann

Mathias Hasselmann — Sat, 08 Dec 2007 09:38:29 +0000

Emmanuele Bassi: The iterator safes you the g_list_free and the table lookup, which both do not come for free.

By: Emmanuele Bassi

Emmanuele Bassi — Fri, 07 Dec 2007 19:14:17 +0000

mmh, and why not using the get_keys() and get_values() method I added in GLib 2.14?

keys = g_hash_table_get_keys (table);
for (l = keys; l != NULL; l = l->next)
{
gpointer key = l->data;
gpointer value = g_hash_table_lookup (table, key);

/* do something with key and value */
}
g_list_free (keys);

this new API seems like a bit of syntactic sugar for high level languages refugees, but other than that I don’t really see the point.