micromath/float/
div_euclid.rs

1//! Calculates Euclidian division for a single-precision float.
2
3use super::F32;
4
5impl F32 {
6    /// Calculates Euclidean division, the matching method for `rem_euclid`.
7    pub fn div_euclid(self, rhs: Self) -> Self {
8        let q = (self / rhs).trunc();
9
10        if self % rhs >= Self::ZERO {
11            q
12        } else if rhs > Self::ZERO {
13            q - Self::ONE
14        } else {
15            q + Self::ONE
16        }
17    }
18}
19
20#[cfg(test)]
21mod tests {
22    use super::F32;
23
24    #[test]
25    fn sanity_check() {
26        let a = F32(7.0);
27        let b = F32(4.0);
28
29        assert_eq!(a.div_euclid(b), F32(1.0));
30        assert_eq!((-a).div_euclid(b), F32(-2.0));
31        assert_eq!(a.div_euclid(-b), F32(-1.0));
32        assert_eq!((-a).div_euclid(-b), F32(2.0));
33    }
34}
micromath/float/div_euclid.rs

micromath/float/
div_euclid.rs
