sprs 0.11.3

A sparse matrix library
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
178
179
180

use num_complex::Complex;
use num_traits::cast::NumCast;
use std::fmt;
use std::fmt::Display;
use std::str::SplitWhitespace;

use crate::io::IoError::BadMatrixMarketFile;
use crate::num_kinds::Pattern;

pub struct Displayable<T>(T);

impl Display for Displayable<&Pattern> {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        // write nothing for pattern
        write!(f, "")
    }
}

pub trait MatrixMarketDisplay
where
    Self: Sized,
{
    fn mm_display(&self) -> Displayable<&Self> {
        Displayable(self)
    }
}

impl<T> MatrixMarketDisplay for T
where
    for<'a> Displayable<&'a T>: Display,
{
    fn mm_display(&self) -> Displayable<&Self> {
        Displayable(self)
    }
}

macro_rules! default_matrixmarket_display_impl {
    ($t: ty) => {
        impl Display for Displayable<$t> {
            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                write!(f, "{}", self.0)
            }
        }
        impl Display for Displayable<&$t> {
            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                write!(f, "{}", self.0)
            }
        }
    };
}

macro_rules! complex_matrixmarket_display_impl {
    ($t: ty) => {
        impl Display for Displayable<Complex<$t>> {
            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                write!(f, "{} {}", self.0.re, self.0.im)
            }
        }
        impl Display for Displayable<&Complex<$t>> {
            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                write!(f, "{} {}", self.0.re, self.0.im)
            }
        }
    };
}

default_matrixmarket_display_impl!(i8);
default_matrixmarket_display_impl!(u8);
default_matrixmarket_display_impl!(i16);
default_matrixmarket_display_impl!(u16);
default_matrixmarket_display_impl!(i32);
default_matrixmarket_display_impl!(u32);
default_matrixmarket_display_impl!(i64);
default_matrixmarket_display_impl!(u64);
default_matrixmarket_display_impl!(isize);
default_matrixmarket_display_impl!(usize);
default_matrixmarket_display_impl!(f32);
default_matrixmarket_display_impl!(f64);

complex_matrixmarket_display_impl!(f64);
complex_matrixmarket_display_impl!(f32);

pub trait MatrixMarketRead: Sized {
    fn mm_read(r: &mut SplitWhitespace) -> Result<Self, crate::io::IoError>;
}
impl MatrixMarketRead for Pattern {
    fn mm_read(_: &mut SplitWhitespace) -> Result<Self, crate::io::IoError> {
        Ok(Pattern {})
    }
}

macro_rules! matrixmarket_read_impl {
    (Complex<$t:ty>) => {
        impl MatrixMarketRead for Complex<$t> {
            fn mm_read(
                r: &mut SplitWhitespace,
            ) -> Result<Self, crate::io::IoError> {
                let re = r.next().ok_or(BadMatrixMarketFile).and_then(|s| {
                    s.parse::<$t>().or(Err(BadMatrixMarketFile))
                })?;
                let im = r.next().ok_or(BadMatrixMarketFile).and_then(|s| {
                    s.parse::<$t>().or(Err(BadMatrixMarketFile))
                })?;
                Ok(Complex::<$t>::new(re, im))
            }
        }
    };
    ($t: ty) => {
        impl MatrixMarketRead for $t {
            fn mm_read(
                r: &mut SplitWhitespace,
            ) -> Result<Self, crate::io::IoError> {
                let val =
                    r.next().ok_or(BadMatrixMarketFile).and_then(|s| {
                        s.parse::<$t>().or(Err(BadMatrixMarketFile))
                    })?;
                NumCast::from(val).ok_or_else(|| BadMatrixMarketFile)
            }
        }
    };
}

matrixmarket_read_impl!(i8);
matrixmarket_read_impl!(u8);
matrixmarket_read_impl!(i16);
matrixmarket_read_impl!(u16);
matrixmarket_read_impl!(i32);
matrixmarket_read_impl!(u32);
matrixmarket_read_impl!(i64);
matrixmarket_read_impl!(u64);
matrixmarket_read_impl!(isize);
matrixmarket_read_impl!(usize);
matrixmarket_read_impl!(f32);
matrixmarket_read_impl!(f64);
matrixmarket_read_impl!(Complex<f64>);
matrixmarket_read_impl!(Complex<f32>);

pub trait MatrixMarketConjugate
where
    Self: Sized,
{
    fn mm_conj(&self) -> Option<Self>;
}
impl MatrixMarketConjugate for Pattern {
    fn mm_conj(&self) -> Option<Self> {
        None
    }
}

macro_rules! matrixmarket_conjugate_impl {
    (Complex<$t:ty>) => {
        impl MatrixMarketConjugate for Complex<$t> {
            fn mm_conj(&self) -> Option<Self> {
                Some(self.conj())
            }
        }
    };
    ($t: ty) => {
        impl MatrixMarketConjugate for $t {
            fn mm_conj(&self) -> Option<Self> {
                None
            }
        }
    };
}

matrixmarket_conjugate_impl!(i8);
matrixmarket_conjugate_impl!(u8);
matrixmarket_conjugate_impl!(i16);
matrixmarket_conjugate_impl!(u16);
matrixmarket_conjugate_impl!(i32);
matrixmarket_conjugate_impl!(u32);
matrixmarket_conjugate_impl!(i64);
matrixmarket_conjugate_impl!(u64);
matrixmarket_conjugate_impl!(isize);
matrixmarket_conjugate_impl!(usize);
matrixmarket_conjugate_impl!(f32);
matrixmarket_conjugate_impl!(f64);
matrixmarket_conjugate_impl!(Complex<f64>);
matrixmarket_conjugate_impl!(Complex<f32>);