Function checked_div_ceil 

pub fn checked_div_ceil(dividend: i64, divisor: i64) -> Option<i64>

Returns the mathematical ceiling of dividend / divisor.

Returns None when divisor is zero or when the exact quotient does not fit in i64.

Examples

use use_arithmetic::checked_div_ceil;

assert_eq!(checked_div_ceil(-7, 3), Some(-2));
assert_eq!(checked_div_ceil(7, -3), Some(-2));
assert_eq!(checked_div_ceil(7, 0), None);