447 #  define ckd_add(r, a, b) __builtin_add_overflow(a, b, r)  argument
450 #  define ckd_sub(r, a, b) __builtin_sub_overflow(a, b, r)  argument
453 #  define ckd_mul(r, a, b) __builtin_mul_overflow(a, b, r)  argument
456 # define ckd_add(r, a, b) __builtin_add_overflow(a, b, r)  argument
457 # define ckd_sub(r, a, b) __builtin_sub_overflow(a, b, r)  argument
458 # define ckd_mul(r, a, b) __builtin_mul_overflow(a, b, r)  argument
816 #define max(a, b) ((a) > (b) ? (a) : (b))  argument
817 #define min(a, b) ((a) < (b) ? (a) : (b))  argument
822 #define MAXVAL(t, b)						\  argument
825 #define MINVAL(t, b)						\  argument
1004 #define isleap_sum(a, b)	isleap((a) % 400 + (b) % 400)  argument