dev/c/gcopy/gcopy.c

58 lines
1.2 KiB
C

#include <glib.h>
#include <glib-object.h>
static void test_int (void)
{
GValue a_value = {0, };
GValue b_value = {0, };
guint64 a, b;
a = 0xdeadbeaf;
g_value_init (&a_value, G_TYPE_UINT64);
g_value_set_uint64 (&a_value, a);
g_value_init (&b_value, G_TYPE_UINT64);
g_value_copy (&a_value, &b_value);
b = g_value_get_uint64 (&b_value);
if (a == b) {
g_print ("Yay !! 10 lines of code to copy around a uint64.\n");
} else {
g_print ("Are you sure this is not a Z80 ?\n");
}
}
static void test_object (void)
{
GObject *obj;
GValue obj_vala = {0, };
GValue obj_valb = {0, };
obj = g_object_new (MAMAN_BAR_TYPE, NULL);
g_value_init (&obj_vala, MAMAN_BAR_TYPE);
g_value_set_object (&obj_vala, obj);
g_value_init (&obj_valb, G_TYPE_OBJECT);
/* g_value_copy's semantics for G_TYPE_OBJECT types is to copy the reference.
This function thus calls g_object_ref.
It is interesting to note that the assignment works here because
MAMAN_BAR_TYPE is a G_TYPE_OBJECT.
*/
g_value_copy (&obj_vala, &obj_valb);
g_object_unref (G_OBJECT (obj));
g_object_unref (G_OBJECT (obj));
}
int main (void)
{
test_int ();
test_object ();
return 0;
}