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
#![crate_type = "lib"]
mod chirpz;
mod mixed_radix;
mod precompute_utils;
mod prime_factorization;
mod cfft1d;
mod cfft2d;
mod dct1d;
mod mdct1d;
mod rfft1d;
pub use cfft1d::CFft1D;
pub use cfft2d::CFft2D;
pub use dct1d::{Dct1D, DctType};
pub use mdct1d::Mdct1D;
pub use rfft1d::RFft1D;
pub(crate) trait QuarterRotation {
fn quarter_turn(self) -> Self;
fn three_quarter_turn(self) -> Self;
}
impl<T: num_traits::Float> QuarterRotation for num_complex::Complex<T> {
fn quarter_turn(self) -> Self {
num_complex::Complex::new(-self.im, self.re)
}
fn three_quarter_turn(self) -> Self {
num_complex::Complex::new(self.im, -self.re)
}
}
#[cfg(test)]
trait FloatEps {
fn eps() -> Self;
}
#[cfg(test)]
mod tests {
impl crate::FloatEps for f32 {
fn eps() -> Self {
1e-2
}
}
impl crate::FloatEps for f64 {
fn eps() -> Self {
1e-10
}
}
}
#[cfg(test)]
fn assert_appro_eq<
A: FloatEps + std::fmt::Debug + PartialOrd,
B: std::fmt::Debug + ?Sized,
C: appro_eq::AbsError<B, A> + std::fmt::Debug + ?Sized,
>(
expected: &C,
actual: &B,
) {
appro_eq::assert_appro_eq!(&expected, &actual, A::eps());
}