scalars 0.2.0

Minimal numeric traits: Zero, One, Inv, Sqrt, Exp, Trigonometry, Real, Integer
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
130
131
132
133
134
135
136
137
138
139

use crate::{Clamp, Exp, Inv, InverseTrigonometry, One, Sqrt, Trigonometry, Zero};

macro_rules! impl_float {
    ($type:ty, $sqrt:path, $exp:path, $exp2:path, $sin:path, $cos:path, $tan:path,
     $asin:path, $acos:path, $atan:path, $atan2:path) => {
        impl Zero for $type {
            fn zero() -> Self {
                0.0
            }
            fn is_zero(&self) -> bool {
                *self == 0.0
            }
        }

        impl One for $type {
            fn one() -> Self {
                1.0
            }
            fn is_one(&self) -> bool {
                *self == 1.0
            }
        }

        impl Inv for $type {
            type Output = Self;
            fn inv(self) -> Self {
                1.0 / self
            }
        }

        impl Sqrt for $type {
            fn sqrt(self) -> Self {
                $sqrt(self)
            }
        }

        impl Exp for $type {
            type Output = Self;
            fn exp(self) -> Self {
                $exp(self)
            }
            fn exp2(self) -> Self {
                $exp2(self)
            }
        }

        impl Trigonometry for $type {
            fn sin_cos(self) -> [Self; 2] {
                [$sin(self), $cos(self)]
            }

            fn tan(self) -> Self {
                $tan(self)
            }
        }

        impl InverseTrigonometry for $type {
            fn asin(self) -> Self {
                $asin(self)
            }
            fn acos(self) -> Self {
                $acos(self)
            }
            fn atan(self) -> Self {
                $atan(self)
            }
            fn atan2(self, other: Self) -> Self {
                $atan2(self, other)
            }
        }

        impl Clamp for $type {
            fn min(self, other: Self) -> Self {
                if self < other { self } else { other }
            }

            fn max(self, other: Self) -> Self {
                if self > other { self } else { other }
            }
        }
    };
}

impl_float!(
    f32,
    libm::sqrtf,
    libm::expf,
    libm::exp2f,
    libm::sinf,
    libm::cosf,
    libm::tanf,
    libm::asinf,
    libm::acosf,
    libm::atanf,
    libm::atan2f
);

impl_float!(
    f64,
    libm::sqrt,
    libm::exp,
    libm::exp2,
    libm::sin,
    libm::cos,
    libm::tan,
    libm::asin,
    libm::acos,
    libm::atan,
    libm::atan2
);

#[cfg(feature = "std")]
mod from_str_radix {
    use crate::FromStrRadix;

    impl FromStrRadix for f32 {
        type Error = core::num::ParseFloatError;

        fn from_str_radix(source: &str, radix: u32) -> Result<Self, Self::Error> {
            if radix == 10 {
                source.parse()
            } else {
                "".parse()
            }
        }
    }

    impl FromStrRadix for f64 {
        type Error = core::num::ParseFloatError;

        fn from_str_radix(source: &str, radix: u32) -> Result<Self, Self::Error> {
            if radix == 10 {
                source.parse()
            } else {
                "".parse()
            }
        }
    }
}