score-set 0.2.1

A Rust library for building static weighted scoring operator sets
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129

use core::fmt::Debug;
use core::ops::{Add, Div, Mul, Neg, Sub};

/// Sealed trait for floating-point types supported by this crate.
///
/// Implemented for `f32` and `f64` only — downstream crates cannot add new impls.
pub(crate) mod sealed {
    use super::*;

    pub trait SealedFloat:
        Copy
        + PartialOrd
        + PartialEq
        + Debug
        + Add<Output = Self>
        + Sub<Output = Self>
        + Mul<Output = Self>
        + Div<Output = Self>
        + Neg<Output = Self>
        + 'static
    {
        fn zero() -> Self;
        fn one() -> Self;
        fn is_finite(self) -> bool;
        fn from_f64(v: f64) -> Self;
        fn abs(self) -> Self;
        fn min(self, other: Self) -> Self;
        fn max(self, other: Self) -> Self;
        fn exp(self) -> Self;
        fn ln(self) -> Self;
        fn epsilon() -> Self;
    }

    impl SealedFloat for f32 {
        #[inline]
        fn zero() -> Self {
            0.0
        }
        #[inline]
        fn one() -> Self {
            1.0
        }
        #[inline]
        fn is_finite(self) -> bool {
            f32::is_finite(self)
        }
        #[inline]
        fn from_f64(v: f64) -> Self {
            v as f32
        }
        #[inline]
        fn abs(self) -> Self {
            f32::abs(self)
        }
        #[inline]
        fn min(self, other: Self) -> Self {
            f32::min(self, other)
        }
        #[inline]
        fn max(self, other: Self) -> Self {
            f32::max(self, other)
        }
        #[inline]
        fn exp(self) -> Self {
            f32::exp(self)
        }
        #[inline]
        fn ln(self) -> Self {
            f32::ln(self)
        }
        #[inline]
        fn epsilon() -> Self {
            f32::EPSILON
        }
    }

    impl SealedFloat for f64 {
        #[inline]
        fn zero() -> Self {
            0.0
        }
        #[inline]
        fn one() -> Self {
            1.0
        }
        #[inline]
        fn is_finite(self) -> bool {
            f64::is_finite(self)
        }
        #[inline]
        fn from_f64(v: f64) -> Self {
            v
        }
        #[inline]
        fn abs(self) -> Self {
            f64::abs(self)
        }
        #[inline]
        fn min(self, other: Self) -> Self {
            f64::min(self, other)
        }
        #[inline]
        fn max(self, other: Self) -> Self {
            f64::max(self, other)
        }
        #[inline]
        fn exp(self) -> Self {
            f64::exp(self)
        }
        #[inline]
        fn ln(self) -> Self {
            f64::ln(self)
        }
        #[inline]
        fn epsilon() -> Self {
            f64::EPSILON
        }
    }
}

/// Public trait bound for floating-point types used throughout `score-set`.
///
/// Blanket-implemented for `f32` and `f64`. Sealed so downstream cannot add new impls.
pub trait Float: sealed::SealedFloat {}

impl<T: sealed::SealedFloat> Float for T {}

#[cfg(test)]
mod tests_for_float;