mdarray 0.5.0

Multidimensional array for Rust
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

/// Creates a dense multidimensional array containing the arguments.
///
/// This macro is used to create an array, similar to the `vec!` macro for vectors.
/// There are two forms of this macro:
///
/// - Create an array containing a given list of elements:
///
/// ```
/// use mdarray::{grid, Grid};
///
/// let a = grid![[1, 2], [3, 4]];
///
/// assert_eq!(a, Grid::from([[1, 2], [3, 4]]));
/// ```
///
/// - Create an array from a given element and shape by cloning the element:
///
/// ```
/// use mdarray::{grid, Grid};
///
/// let a = grid![[1; 2]; 3];
///
/// assert_eq!(a, Grid::from_elem([2, 3], 1));
/// ```
///
/// In the second form, like for vectors the shape does not have to be constant.
#[macro_export]
macro_rules! grid {
    ($([$([$([$([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?) => (
        Grid::<_, 6>::from([$([$([$([$([$([$($x),*]),+]),+]),+]),+]),+])
    );
    ($([$([$([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?) => (
        Grid::<_, 5>::from([$([$([$([$([$($x),*]),+]),+]),+]),+])
    );
    ($([$([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?) => (
        Grid::<_, 4>::from([$([$([$([$($x),*]),+]),+]),+])
    );
    ($([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?) => (
        Grid::<_, 3>::from([$([$([$($x),*]),+]),+])
    );
    ($([$($x:expr),* $(,)?]),+ $(,)?) => (
        Grid::<_, 2>::from([$([$($x),*]),+])
    );
    ($($x:expr),* $(,)?) => (
        Grid::<_, 1>::from([$($x),*])
    );
    ([[[[[$elem:expr; $i:expr]; $j:expr]; $k:expr]; $l:expr]; $m:expr]; $n:expr) => (
        Grid::<_, 6>::from_elem([$i, $j, $k, $l, $m, $n], $elem)
    );
    ([[[[$elem:expr; $i:expr]; $j:expr]; $k:expr]; $l:expr]; $m:expr) => (
        Grid::<_, 5>::from_elem([$i, $j, $k, $l, $m], $elem)
    );
    ([[[$elem:expr; $i:expr]; $j:expr]; $k:expr]; $l:expr) => (
        Grid::<_, 4>::from_elem([$i, $j, $k, $l], $elem)
    );
    ([[$elem:expr; $i:expr]; $j:expr]; $k:expr) => (
        Grid::<_, 3>::from_elem([$i, $j, $k], $elem)
    );
    ([$elem:expr; $i:expr]; $j:expr) => (
        Grid::<_, 2>::from_elem([$i, $j], $elem)
    );
    ($elem:expr; $i:expr) => (
        Grid::<_, 1>::from_elem([$i], $elem)
    );
}

/// Creates a multidimensional array view containing the arguments.
///
/// This macro is used to create an array view, similar to the `vec!` macro for vectors.
/// There are two forms of this macro:
///
/// - Create an array view containing a given list of elements:
///
/// ```
/// use mdarray::{view, View};
///
/// let a = view![[1, 2], [3, 4]];
///
/// assert_eq!(a, View::from(&[[1, 2], [3, 4]]));
/// ```
///
/// - Create an array view from a given element and shape:
///
/// ```
/// use mdarray::{view, View};
///
/// let a = view![[1; 2]; 3];
///
/// assert_eq!(a, View::from(&[[1; 2]; 3]));
/// ```
///
/// In the second form, the argument must be an array repeat expression with constant shape.
#[macro_export]
macro_rules! view {
    ($([$([$([$([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?) => (
        View::<_, 6>::from(&[$([$([$([$([$([$($x),*]),+]),+]),+]),+]),+])
    );
    ($([$([$([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?) => (
        View::<_, 5>::from(&[$([$([$([$([$($x),*]),+]),+]),+]),+])
    );
    ($([$([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?]),+ $(,)?) => (
        View::<_, 4>::from(&[$([$([$([$($x),*]),+]),+]),+])
    );
    ($([$([$($x:expr),* $(,)?]),+ $(,)?]),+ $(,)?) => (
        View::<_, 3>::from(&[$([$([$($x),*]),+]),+])
    );
    ($([$($x:expr),* $(,)?]),+ $(,)?) => (
        View::<_, 2>::from(&[$([$($x),*]),+])
    );
    ($($x:expr),* $(,)?) => (
        View::<_, 1>::from(&[$($x),*])
    );
    ([[[[[$elem:expr; $i:expr]; $j:expr]; $k:expr]; $l:expr]; $m:expr]; $n:expr) => (
        View::<_, 6>::from(&[[[[[[$elem; $i]; $j]; $k]; $l]; $m]; $n])
    );
    ([[[[$elem:expr; $i:expr]; $j:expr]; $k:expr]; $l:expr]; $m:expr) => (
        View::<_, 5>::from(&[[[[[$elem; $i]; $j]; $k]; $l]; $m])
    );
    ([[[$elem:expr; $i:expr]; $j:expr]; $k:expr]; $l:expr) => (
        View::<_, 4>::from(&[[[[$elem; $i]; $j]; $k]; $l])
    );
    ([[$elem:expr; $i:expr]; $j:expr]; $k:expr) => (
        View::<_, 3>::from(&[[[$elem; $i]; $j]; $k])
    );
    ([$elem:expr; $i:expr]; $j:expr) => (
        View::<_, 2>::from(&[[$elem; $i]; $j])
    );
    ($elem:expr; $i:expr) => (
        View::<_, 1>::from(&[$elem; $i])
    );
}