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

use crate::traits::Number;

/// Returns the maximum among two values.
///
/// # Examples:
///
/// ```
/// # use nalgebra_glm as glm;
/// assert_eq!(2.0, glm::max2_scalar(1.0, 2.0));
/// assert_eq!(1, glm::max2_scalar(0, 1));
/// ```
///
/// # See also:
///
/// * [`max4_scalar`](fn.max4_scalar.html)
/// * [`min3_scalar`](fn.min3_scalar.html)
/// * [`min4_scalar`](fn.min4_scalar.html)
pub fn max2_scalar<T: Number>(a: T, b: T) -> T {
    if a >= b {
        a
    } else {
        b
    }
}

/// Returns the maximum among two values.
///
/// # Examples:
///
/// ```
/// # use nalgebra_glm as glm;
/// assert_eq!(1.0, glm::min2_scalar(1.0, 2.0));
/// assert_eq!(0, glm::min2_scalar(0, 1));
/// ```
///
/// # See also:
///
/// * [`max4_scalar`](fn.max4_scalar.html)
/// * [`min3_scalar`](fn.min3_scalar.html)
/// * [`min4_scalar`](fn.min4_scalar.html)
pub fn min2_scalar<T: Number>(a: T, b: T) -> T {
    if a <= b {
        a
    } else {
        b
    }
}

/// Returns the maximum among three values.
///
/// # Examples:
///
/// ```
/// # use nalgebra_glm as glm;
/// assert_eq!(3.0, glm::max3_scalar(1.0, 2.0, 3.0));
/// assert_eq!(2, glm::max3_scalar(0, 1, 2));
/// ```
///
/// # See also:
///
/// * [`max4_scalar`](fn.max4_scalar.html)
/// * [`min3_scalar`](fn.min3_scalar.html)
/// * [`min4_scalar`](fn.min4_scalar.html)
pub fn max3_scalar<T: Number>(a: T, b: T, c: T) -> T {
    max2_scalar(max2_scalar(a, b), c)
}

/// Returns the maximum among four values.
///
/// # Examples:
///
/// ```
/// # use nalgebra_glm as glm;
/// assert_eq!(4.0, glm::max4_scalar(2.0, 4.0, 1.0, 3.0));
/// assert_eq!(7, glm::max4_scalar(1, 0, 7, 2));
/// ```
///
/// # See also:
///
/// * [`max3_scalar`](fn.max3_scalar.html)
/// * [`min3_scalar`](fn.min3_scalar.html)
/// * [`min4_scalar`](fn.min4_scalar.html)
pub fn max4_scalar<T: Number>(a: T, b: T, c: T, d: T) -> T {
    max2_scalar(max2_scalar(a, b), max2_scalar(c, d))
}

/// Returns the minimum among three values.
///
/// # Examples:
///
/// ```
/// # use nalgebra_glm as glm;
/// assert_eq!(1.0, glm::min3_scalar(1.0, 2.0, 3.0));
/// assert_eq!(0, glm::min3_scalar(0, 1, 2));
/// ```
///
/// # See also:
///
/// * [`max3_scalar`](fn.max3_scalar.html)
/// * [`max4_scalar`](fn.max4_scalar.html)
/// * [`min4_scalar`](fn.min4_scalar.html)
pub fn min3_scalar<T: Number>(a: T, b: T, c: T) -> T {
    min2_scalar(min2_scalar(a, b), c)
}

/// Returns the minimum among four values.
///
/// # Examples:
///
/// ```
/// # use nalgebra_glm as glm;
/// assert_eq!(1.0, glm::min4_scalar(2.0, 4.0, 1.0, 3.0));
/// assert_eq!(0, glm::min4_scalar(1, 0, 7, 2));
/// ```
///
/// # See also:
///
/// * [`max3_scalar`](fn.max3_scalar.html)
/// * [`max4_scalar`](fn.max4_scalar.html)
/// * [`min3_scalar`](fn.min3_scalar.html)
pub fn min4_scalar<T: Number>(a: T, b: T, c: T, d: T) -> T {
    min2_scalar(min2_scalar(a, b), min2_scalar(c, d))
}