Function half_towards_zero 

pub fn half_towards_zero(value: f64, scale: i8) -> f64

Round half towards zero.

Round value to accuracy defined by scale rounding half towards zero. Positive scale defines the number of decimal digits in the result while negative scale rounds to a whole number and defines the number of trailing zeroes in the result.

Arguments

• value - value to round
• scale - result accuracy

Examples

use math::round;

let rounded = round::half_towards_zero(3.14159, 3);
assert_eq!(rounded, 3.141);

use math::round;

let rounded = round::half_towards_zero(3456., -2);
assert_eq!(rounded, 3400.);