MAXCODE 451 ext/gd/libgd/gd_gif_out.c # define MAXCODE(n_bits) ((code_int) 1 << (n_bits) - 1) MAXCODE 453 ext/gd/libgd/gd_gif_out.c # define MAXCODE(n_bits) (((code_int) 1 << (n_bits)) - 1)