Converts a pointer to a gdouble to a hash value.
It can be passed to g_hash_table_new() as the hash_func parameter,
It can be passed to g_hash_table_new() as the hash_func parameter,
when using non-NULL pointers to doubles as keys in a GHashTable.
Since 2.22
Converts a pointer to a gdouble to a hash value. It can be passed to g_hash_table_new() as the hash_func parameter, It can be passed to g_hash_table_new() as the hash_func parameter, when using non-NULL pointers to doubles as keys in a GHashTable. Since 2.22