Pardon my double post. I was not subscribed on the first and it is
awaiting moderator. So I subscribed and sent again. See below.
-------- Original Message --------
Subject: Need Help using GLib -> GList
Date: Sun, 03 Apr 2005 17:49:05 -0700
From: Jerry DeLisle <jvdelisle@xxxxxxxxxxx>
To: gtk-list@xxxxxxxxx
I am trying make a list of lists. When I scan through this list of
lists using g_list_first() and g_list_next() it passes through the list
one time fine, then after that it does no more. Here is a snippet:
GList * init_players(GList * thePlayers, int num){
int i;
GList * ahand;
for (i=0;i<num;++i){
ahand = g_new(GList, 1);
ahand->data=NULL;
thePlayers=g_list_append(thePlayers,ahand);
}
return(thePlayers);
}
void deal(GList * adeck, GList * theplayers){
int count = 0;
adeck=g_list_first(adeck);
while (adeck != NULL){
g_print("Outer loop %d.\n",++count);
theplayers=g_list_first(theplayers);
while(theplayers != NULL){
g_print("The player is %u.\n",theplayers);
g_print("Inner loop.\n");
theplayers=g_list_next(theplayers);
}
adeck=g_list_next(adeck);
}
g_print("%d cards were dealt.\n", count);
}
In a nutshell I am simulating dealing a deck of cards to num players.
The first pass through the inner while loop shows 'reasonable' pointer
values for theplayers list. The second pass through, theplayers = NULL.
The call to g_list_first is returning NULL for ever so the list seem
to be lost. I am not appending anything to the list yet, I was just
trying to see if I can scan through the players list correctly. When I
call this with num =4 I get four passes in the inner loop, after that it
doesn't work.
Can anyone give me some hints?
Jerry
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