Module malachite_base::num::arithmetic::overflowing_add_mul

OverflowingAddMul and OverflowingAddMulAssign, traits for adding the product of two other numbers to a number and returning a boolean indicating whether an overflow occurred.

overflowing_add_mul

use malachite_base::num::arithmetic::traits::OverflowingAddMul;

assert_eq!(2u8.overflowing_add_mul(3, 7), (23, false));
assert_eq!(2u8.overflowing_add_mul(20, 20), (146, true));

assert_eq!(127i8.overflowing_add_mul(-2, 100), (-73, false));
assert_eq!((-127i8).overflowing_add_mul(-2, 100), (-71, true));

overflowing_add_mul_assign

use malachite_base::num::arithmetic::traits::OverflowingAddMulAssign;

let mut x = 2u8;
assert_eq!(x.overflowing_add_mul_assign(3, 7), false);
assert_eq!(x, 23);

let mut x = 2u8;
assert_eq!(x.overflowing_add_mul_assign(20, 20), true);
assert_eq!(x, 146);

let mut x = 127i8;
assert_eq!(x.overflowing_add_mul_assign(-2, 100), false);
assert_eq!(x, -73);

let mut x = -127i8;
assert_eq!(x.overflowing_add_mul_assign(-2, 100), true);
assert_eq!(x, -71);