Comparing Two Strings

charIie · **Joined:** Tue Jan 08, 2008 7:39 pm **Posts:** 9

I'm trying to compare two strings in my program and even though the strings are the same, it fails the test.

Code:

   if(curr->next == NULL)
      if(g_ascii_strcasecmp(status_and_combo->data->name, selected_name))
         return status_and_combo->data->mem_add; 
        return NULL;

Each time run, it will skip the nested return and return NULL;
Both g_ascii_strcasecmp and g_strcasecmp give the same result. I understand that g_strcasecmp should not be used anymore, so I was wondering if there was any other way to compare. All the letters are ascii so I assumed that g_ascii_strcasecmp would work.

status_and_combo looks as such:

Code:

typedef struct status_and_widget {
   GtkWidget *widget;
   GtkWidget *status_bar;
   bt_node *data;
   gchar* current_selected;
} status_trans;

data looks as such:

Code:

typedef struct bluetooth_node {
   char*            name;
   char*            mem_add;
   struct bluetooth_node*   next;
} bt_node;

and selected_name is a const gchar*.

The only thing I can think that would cause it to fail is that one is a const gchar* and one is a char*. I have attempted to cast the data->name as a const gchar* and that did not work.

If anyone knows what is happening and why it will not work, it would be appreciated.

Thanks
Brian

Micah Carrick · **Posted:** Wed Jan 09, 2008 11:38 pm

1. You can use g_str_equal() which returns a boolean value.
2. g_ascii_strcasecmp() returns 0 if the strings match. A 0 is the same as FALSE. Therefore, you want your if statement to look like:

Code:

if (g_ascii_strcasecmp(status_and_combo->data->name, selected_name) == 0)
            return status_and_combo->data->mem_add; 

charIie · **Joined:** Tue Jan 08, 2008 7:39 pm **Posts:** 9

g_str_equal() works perfectly, thanks.

Brian

GTK+ Forums

Comparing Two Strings

Who is online