exint 0.1.4

An implementation of generic signed and unsigned integers.
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

use ::core::cmp::Eq;
use ::core::cmp::Ord;
use ::core::cmp::Ordering;
use ::core::cmp::PartialEq;
use ::core::cmp::PartialOrd;
use ::core::option::Option;
use ::core::option::Option::Some;

use crate::types::int;
use crate::types::uint;

const_trait_if! {
  #[feature("const_cmp")]
  impl<const N: usize> const PartialEq for int<N> {
    #[inline]
    fn eq(&self, other: &Self) -> bool {
      Self::const_eq(self, other)
    }
  }

  #[feature("const_cmp")]
  impl<const N: usize> const PartialEq for uint<N> {
    #[inline]
    fn eq(&self, other: &Self) -> bool {
      Self::const_eq(self, other)
    }
  }

  #[feature("const_cmp")]
  impl<const N: usize> const Eq for int<N> {}

  #[feature("const_cmp")]
  impl<const N: usize> const Eq for uint<N> {}

  #[feature("const_cmp")]
  impl<const N: usize> const PartialOrd for int<N> {
    #[inline]
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
      Some(Ord::cmp(self, other))
    }
  }

  #[feature("const_cmp")]
  impl<const N: usize> const PartialOrd for uint<N> {
    #[inline]
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
      Some(Ord::cmp(self, other))
    }
  }

  #[feature("const_cmp")]
  impl<const N: usize> const Ord for int<N> {
    #[inline]
    fn cmp(&self, other: &Self) -> Ordering {
      Self::const_cmp(self, other)
    }
  }

  #[feature("const_cmp")]
  impl<const N: usize> const Ord for uint<N> {
    #[inline]
    fn cmp(&self, other: &Self) -> Ordering {
      Self::const_cmp(self, other)
    }
  }
}

// -----------------------------------------------------------------------------
// Tests
// -----------------------------------------------------------------------------

#[cfg(test)]
mod tests {
  use super::*;
  use crate::tests::*;

  test!(test_eq, () => {
    assert!(<T as PartialEq>::eq(&T::P_0, &T::P_0));
    assert!(<T as PartialEq>::eq(&T::P_1, &T::P_1));
    assert!(<T as PartialEq>::eq(&T::P_2, &T::P_2));
    assert!(<T as PartialEq>::eq(&T::P_3, &T::P_3));

    assert!(<T as PartialEq>::eq(&T::MIN, &T::MIN));
    assert!(<T as PartialEq>::eq(&T::MAX, &T::MAX));

    assert!(<T as PartialEq>::ne(&T::P_0, &T::P_1));
    assert!(<T as PartialEq>::ne(&T::P_0, &T::P_2));
    assert!(<T as PartialEq>::ne(&T::P_0, &T::P_3));

    assert!(<T as PartialEq>::ne(&T::P_1, &T::P_0));
    assert!(<T as PartialEq>::ne(&T::P_1, &T::P_2));
    assert!(<T as PartialEq>::ne(&T::P_1, &T::P_3));

    assert!(<T as PartialEq>::ne(&T::P_2, &T::P_0));
    assert!(<T as PartialEq>::ne(&T::P_2, &T::P_1));
    assert!(<T as PartialEq>::ne(&T::P_2, &T::P_3));

    assert!(<T as PartialEq>::ne(&T::MIN, &T::MAX));
    assert!(<T as PartialEq>::ne(&T::MAX, &T::MIN));
  });

  test!(test_ord, () => {
    assert_eq!(<T as Ord>::cmp(&T::P_0, &T::P_0), Ordering::Equal);
    assert_eq!(<T as Ord>::cmp(&T::P_1, &T::P_1), Ordering::Equal);
    assert_eq!(<T as Ord>::cmp(&T::P_2, &T::P_2), Ordering::Equal);
    assert_eq!(<T as Ord>::cmp(&T::P_3, &T::P_3), Ordering::Equal);

    assert_eq!(<T as Ord>::cmp(&T::P_0, &T::P_1), Ordering::Less);
    assert_eq!(<T as Ord>::cmp(&T::P_1, &T::P_2), Ordering::Less);
    assert_eq!(<T as Ord>::cmp(&T::P_2, &T::P_3), Ordering::Less);

    assert_eq!(<T as Ord>::cmp(&T::P_3, &T::P_2), Ordering::Greater);
    assert_eq!(<T as Ord>::cmp(&T::P_2, &T::P_1), Ordering::Greater);
    assert_eq!(<T as Ord>::cmp(&T::P_1, &T::P_0), Ordering::Greater);

    assert_eq!(<T as Ord>::cmp(&T::MIN, &T::MAX), Ordering::Less);
    assert_eq!(<T as Ord>::cmp(&T::MAX, &T::MIN), Ordering::Greater);
  });

  test!(test_min_max, () => {
    assert_eq!(<T as Ord>::min(T::P_0, T::P_1), T::P_0);
    assert_eq!(<T as Ord>::min(T::P_1, T::P_2), T::P_1);
    assert_eq!(<T as Ord>::min(T::P_2, T::P_3), T::P_2);

    assert_eq!(<T as Ord>::max(T::P_0, T::P_1), T::P_1);
    assert_eq!(<T as Ord>::max(T::P_1, T::P_2), T::P_2);
    assert_eq!(<T as Ord>::max(T::P_2, T::P_3), T::P_3);

    assert_eq!(<T as Ord>::min(T::MIN, T::MAX), T::MIN);
    assert_eq!(<T as Ord>::min(T::MAX, T::MIN), T::MIN);

    assert_eq!(<T as Ord>::max(T::MIN, T::MAX), T::MAX);
    assert_eq!(<T as Ord>::max(T::MAX, T::MIN), T::MAX);
  });
}