faer 0.20.2

Linear algebra routines
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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177

// RangeFull
// Range
// RangeInclusive
// RangeTo
// RangeToInclusive
// usize

use super::*;
use crate::assert;
use core::ops::RangeFull;

type Range = core::ops::Range<usize>;
type RangeInclusive = core::ops::RangeInclusive<usize>;
type RangeFrom = core::ops::RangeFrom<usize>;
type RangeTo = core::ops::RangeTo<usize>;
type RangeToInclusive = core::ops::RangeToInclusive<usize>;

impl<E: Entity> RowIndex<RangeFull> for RowRef<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeFull) -> Self {
        let _ = col;
        this
    }
}

impl<E: Entity> RowIndex<Range> for RowRef<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: Range) -> Self {
        this.subcols(col.start, col.end - col.start)
    }
}

impl<E: Entity> RowIndex<RangeInclusive> for RowRef<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeInclusive) -> Self {
        assert!(*col.end() != usize::MAX);
        <Self as RowIndex<Range>>::get(this, *col.start()..*col.end() + 1)
    }
}

impl<E: Entity> RowIndex<RangeFrom> for RowRef<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeFrom) -> Self {
        let ncols = this.ncols();
        <Self as RowIndex<Range>>::get(this, col.start..ncols)
    }
}
impl<E: Entity> RowIndex<RangeTo> for RowRef<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeTo) -> Self {
        <Self as RowIndex<Range>>::get(this, 0..col.end)
    }
}

impl<E: Entity> RowIndex<RangeToInclusive> for RowRef<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeToInclusive) -> Self {
        assert!(col.end != usize::MAX);
        <Self as RowIndex<Range>>::get(this, 0..col.end + 1)
    }
}

impl<'a, E: Entity> RowIndex<usize> for RowRef<'a, E> {
    type Target = GroupFor<E, &'a E::Unit>;

    #[track_caller]
    #[inline(always)]
    unsafe fn get_unchecked(this: Self, col: usize) -> Self::Target {
        unsafe { E::faer_map(this.ptr_inbounds_at(col), |ptr: *const _| &*ptr) }
    }

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: usize) -> Self::Target {
        assert!(col < this.ncols());
        unsafe { <Self as RowIndex<usize>>::get_unchecked(this, col) }
    }
}

impl<E: Entity> RowIndex<RangeFull> for RowMut<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeFull) -> Self {
        let _ = col;
        this
    }
}

impl<E: Entity> RowIndex<Range> for RowMut<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: Range) -> Self {
        this.subcols_mut(col.start, col.end - col.start)
    }
}

impl<E: Entity> RowIndex<RangeInclusive> for RowMut<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeInclusive) -> Self {
        assert!(*col.end() != usize::MAX);
        <Self as RowIndex<Range>>::get(this, *col.start()..*col.end() + 1)
    }
}

impl<E: Entity> RowIndex<RangeFrom> for RowMut<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeFrom) -> Self {
        let ncols = this.ncols();
        <Self as RowIndex<Range>>::get(this, col.start..ncols)
    }
}

impl<E: Entity> RowIndex<RangeTo> for RowMut<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeTo) -> Self {
        <Self as RowIndex<Range>>::get(this, 0..col.end)
    }
}

impl<E: Entity> RowIndex<RangeToInclusive> for RowMut<'_, E> {
    type Target = Self;

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: RangeToInclusive) -> Self {
        assert!(col.end != usize::MAX);
        <Self as RowIndex<Range>>::get(this, 0..col.end + 1)
    }
}

impl<'a, E: Entity> RowIndex<usize> for RowMut<'a, E> {
    type Target = GroupFor<E, &'a mut E::Unit>;

    #[track_caller]
    #[inline(always)]
    unsafe fn get_unchecked(this: Self, col: usize) -> Self::Target {
        unsafe { E::faer_map(this.ptr_inbounds_at_mut(col), |ptr: *mut _| &mut *ptr) }
    }

    #[track_caller]
    #[inline(always)]
    fn get(this: Self, col: usize) -> Self::Target {
        assert!(col < this.ncols());
        unsafe { <Self as RowIndex<usize>>::get_unchecked(this, col) }
    }
}