Programming

Hello vino ,

i have the program

# cat glibtest.c

Code:

#include <stdio.h>
#include <glib.h>

int main(){

        GHashTable *hash = g_hash_table_new(g_int_hash, g_int_equal);
        g_hash_table_insert(hash,"Virginia","Richmond");

        printf(" %s ",g_hash_table_lookup(hash,"Virginia"));
        gboolean found = g_hash_table_remove(hash,"Virginia");
        printf("The Value 'virginia' was %s found and removed \n",found ? "":"not");
        g_hash_table_destory(hash);

        return 0;
}

the compilation problems are

# gcc -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -g glibtest.c -o glibtest.o
/tmp/ccElT30B.o(.text+0x20): In function `main':
/home/ramakanth/cprogs/hashprogs/glibtest.c:6: undefined reference to `g_int_equal'
/tmp/ccElT30B.o(.text+0x25):/home/ramakanth/cprogs/hashprogs/glibtest.c:6: undefined reference to `g_int_hash'
/tmp/ccElT30B.o(.text+0x2a):/home/ramakanth/cprogs/hashprogs/glibtest.c:6: undefined reference to `g_hash_table_new'
/tmp/ccElT30B.o(.text+0x45):/home/ramakanth/cprogs/hashprogs/glibtest.c:7: undefined reference to `g_hash_table_insert'
/tmp/ccElT30B.o(.text+0x58):/home/ramakanth/cprogs/hashprogs/glibtest.c:9: undefined reference to `g_hash_table_lookup'
/tmp/ccElT30B.o(.text+0x79):/home/ramakanth/cprogs/hashprogs/glibtest.c:10: undefined reference to `g_hash_table_remove'
/tmp/ccElT30B.o(.text+0xb3):/home/ramakanth/cprogs/hashprogs/glibtest.c:12: undefined reference to `g_hash_table_destory'
collect2: ld returned 1 exit status


I think still iam missing some libraires ..


please advise me

thanks

Try adding the libglib-2.0 library.

Code:

gcc -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -g glibtest.c -o glibtest.o -lglib-2.0

The glib-config utility can make this a lot simpler.

Code:

$ glib-config --cflags
-I/usr/include/glib-1.2 -I/usr/lib/glib/include
$ glib-config --libs
-L/usr/lib -lglib
$

So your compile line could be simplified to

Code:

gcc `glib-config --cflags` -g glibtest.c -o glibtest `glib-config --libs`

...and would continue to work on systems where glib was a different version and/or installed in a different location.

freshmeat has this hashtable lib:

http://freshmeat.net/projects/sunrisedd

lists a hashtable library in C with ref counting:
http://freshmeat.net/projects/sunrisedd/