      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
    140
    141
    142

    //! Lane-wise arithmetic operations.

    macro_rules! impl_arithmetic_ops {
        ($id:ident) => {
            impl ops::Add for $id {
                type Output = Self;
                #[inline]
                fn add(self, other: Self) -> Self {
                    unsafe { simd_add(self, other) }
                }
            }

            impl ops::Sub for $id {
                type Output = Self;
                #[inline]
                fn sub(self, other: Self) -> Self {
                    unsafe { simd_sub(self, other) }
                }
            }

            impl ops::Mul for $id {
                type Output = Self;
                #[inline]
                fn mul(self, other: Self) -> Self {
                    unsafe { simd_mul(self, other) }
                }
            }

            impl ops::Div for $id {
                type Output = Self;
                #[inline]
                fn div(self, other: Self) -> Self {
                    unsafe { simd_div(self, other) }
                }
            }

            impl ops::Rem for $id {
                type Output = Self;
                #[inline]
                fn rem(self, other: Self) -> Self {
                    unsafe { simd_rem(self, other) }
                }
            }

            impl ops::AddAssign for $id {
                #[inline]
                fn add_assign(&mut self, other: Self) {
                    *self = *self + other;
                }
            }

            impl ops::SubAssign for $id {
                #[inline]
                fn sub_assign(&mut self, other: Self) {
                    *self = *self - other;
                }
            }

            impl ops::MulAssign for $id {
                #[inline]
                fn mul_assign(&mut self, other: Self) {
                    *self = *self * other;
                }
            }

            impl ops::DivAssign for $id {
                #[inline]
                fn div_assign(&mut self, other: Self) {
                    *self = *self / other;
                }
            }

            impl ops::RemAssign for $id {
                #[inline]
                fn rem_assign(&mut self, other: Self) {
                    *self = *self % other;
                }
            }
        }
    }

    #[cfg(test)]
    #[macro_export]
    macro_rules! test_arithmetic_ops {
        ($id:ident, $elem_ty:ident) => {
            #[test]
            fn arithmetic() {
                use ::coresimd::simd::$id;
                let z = $id::splat(0 as $elem_ty);
                let o = $id::splat(1 as $elem_ty);
                let t = $id::splat(2 as $elem_ty);
                let f = $id::splat(4 as $elem_ty);

                // add
                assert_eq!(z + z, z);
                assert_eq!(o + z, o);
                assert_eq!(t + z, t);
                assert_eq!(t + t, f);
                // sub
                assert_eq!(z - z, z);
                assert_eq!(o - z, o);
                assert_eq!(t - z, t);
                assert_eq!(f - t, t);
                assert_eq!(f - o - o, t);
                // mul
                assert_eq!(z * z, z);
                assert_eq!(z * o, z);
                assert_eq!(z * t, z);
                assert_eq!(o * t, t);
                assert_eq!(t * t, f);
                // div
                assert_eq!(z / o, z);
                assert_eq!(t / o, t);
                assert_eq!(f / o, f);
                assert_eq!(t / t, o);
                assert_eq!(f / t, t);
                // rem
                assert_eq!(o % o, z);
                assert_eq!(f % t, z);

                {
                    let mut v = z;
                    assert_eq!(v, z);
                    v += o;  // add_assign
                    assert_eq!(v, o);
                    v -= o; // sub_assign
                    assert_eq!(v, z);
                    v = t;
                    v *= o; // mul_assign
                    assert_eq!(v, t);
                    v *= t;
                    assert_eq!(v, f);
                    v /= o; // div_assign
                    assert_eq!(v, f);
                    v /= t;
                    assert_eq!(v, t);
                    v %= t; // rem_assign
                    assert_eq!(v, z);
                }
            }
        };
    }

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)