radiate_utils/primitives/
float.rs

1use crate::primitives::Primitive;
2use num_order::{NumHash, NumOrd};
3
4pub trait Float: Primitive + num_traits::Float + NumHash + NumOrd<Self> {
5    const THREE: Self;
6    const FOUR: Self;
7    const FIVE: Self;
8    const SIX: Self;
9    const EPS: Self;
10    const NAN: Self;
11
12    fn safe_clamp(self, min: Self, max: Self) -> Self {
13        if self.is_finite() {
14            self.clamp(min, max)
15        } else {
16            Self::EPS
17        }
18    }
19}
20
21#[macro_export]
22macro_rules! impl_float_scalar {
23    ($t:ty, $eps:expr) => {
24        impl Primitive for $t {
25            const HALF: Self = 0.5;
26            const MIN: Self = <$t>::MIN;
27            const MAX: Self = <$t>::MAX;
28            const ZERO: Self = 0.0;
29            const ONE: Self = 1.0;
30            const TWO: Self = 2.0;
31
32            #[inline]
33            fn safe_add(self, rhs: Self) -> Self {
34                self + rhs
35            }
36
37            #[inline]
38            fn safe_sub(self, rhs: Self) -> Self {
39                self - rhs
40            }
41
42            #[inline]
43            fn safe_mul(self, rhs: Self) -> Self {
44                (self * rhs)
45            }
46
47            #[inline]
48            fn safe_div(self, rhs: Self) -> Self {
49                if rhs == Self::ZERO { self } else { self / rhs }
50            }
51
52            #[inline]
53            fn safe_mean(self, rhs: Self) -> Self {
54                (self + rhs) * Self::HALF
55            }
56
57            #[inline]
58            fn is_equal(self, rhs: Self) -> bool {
59                (self - rhs).abs() <= $eps
60            }
61        }
62
63        impl Float for $t {
64            const THREE: Self = 3.0;
65            const FOUR: Self = 4.0;
66            const FIVE: Self = 5.0;
67            const SIX: Self = 6.0;
68            const NAN: Self = <$t>::NAN;
69            const EPS: Self = $eps;
70        }
71    };
72}
73
74impl_float_scalar!(f32, 1e-6_f32);
75impl_float_scalar!(f64, 1e-12_f64);
radiate_utils/primitives/float.rs

radiate_utils/primitives/
float.rs
