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.
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.