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| author | Joseph Caudle <joseph@josephcaudle.com> | 2015-10-10 00:01:57 -0400 |
|---|---|---|
| committer | Joseph Caudle <joseph@josephcaudle.com> | 2015-10-10 00:01:57 -0400 |
| commit | 928e4b2541ce3dabc9f5e6d799542bb96a02284d (patch) | |
| tree | dcdcd9998334c4f0d5e33f9f07296ea866c865fd | |
| parent | 87cd2c08273dec5c8db8e59f4231b8e69aa9b85b (diff) | |
| download | rust-928e4b2541ce3dabc9f5e6d799542bb96a02284d.tar.gz rust-928e4b2541ce3dabc9f5e6d799542bb96a02284d.zip | |
Run rustfmt on librand/distributions/normal.rs
| -rw-r--r-- | src/librand/distributions/normal.rs | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/src/librand/distributions/normal.rs b/src/librand/distributions/normal.rs index cc70a695c8d..7fe8b6e8806 100644 --- a/src/librand/distributions/normal.rs +++ b/src/librand/distributions/normal.rs @@ -32,13 +32,13 @@ use distributions::{ziggurat, ziggurat_tables, Sample, IndependentSample}; pub struct StandardNormal(pub f64); impl Rand for StandardNormal { - fn rand<R:Rng>(rng: &mut R) -> StandardNormal { + fn rand<R: Rng>(rng: &mut R) -> StandardNormal { #[inline] fn pdf(x: f64) -> f64 { - (-x*x/2.0).exp() + (-x * x / 2.0).exp() } #[inline] - fn zero_case<R:Rng>(rng: &mut R, u: f64) -> f64 { + fn zero_case<R: Rng>(rng: &mut R, u: f64) -> f64 { // compute a random number in the tail by hand // strange initial conditions, because the loop is not @@ -56,15 +56,19 @@ impl Rand for StandardNormal { y = y_.ln(); } - if u < 0.0 { x - ziggurat_tables::ZIG_NORM_R } else { ziggurat_tables::ZIG_NORM_R - x } + if u < 0.0 { + x - ziggurat_tables::ZIG_NORM_R + } else { + ziggurat_tables::ZIG_NORM_R - x + } } - StandardNormal(ziggurat( - rng, - true, // this is symmetric - &ziggurat_tables::ZIG_NORM_X, - &ziggurat_tables::ZIG_NORM_F, - pdf, zero_case)) + StandardNormal(ziggurat(rng, + true, // this is symmetric + &ziggurat_tables::ZIG_NORM_X, + &ziggurat_tables::ZIG_NORM_F, + pdf, + zero_case)) } } @@ -89,12 +93,14 @@ impl Normal { assert!(std_dev >= 0.0, "Normal::new called with `std_dev` < 0"); Normal { mean: mean, - std_dev: std_dev + std_dev: std_dev, } } } impl Sample<f64> for Normal { - fn sample<R: Rng>(&mut self, rng: &mut R) -> f64 { self.ind_sample(rng) } + fn sample<R: Rng>(&mut self, rng: &mut R) -> f64 { + self.ind_sample(rng) + } } impl IndependentSample<f64> for Normal { fn ind_sample<R: Rng>(&self, rng: &mut R) -> f64 { @@ -110,7 +116,7 @@ impl IndependentSample<f64> for Normal { /// std_dev**2)` distributed. #[derive(Copy, Clone)] pub struct LogNormal { - norm: Normal + norm: Normal, } impl LogNormal { @@ -126,7 +132,9 @@ impl LogNormal { } } impl Sample<f64> for LogNormal { - fn sample<R: Rng>(&mut self, rng: &mut R) -> f64 { self.ind_sample(rng) } + fn sample<R: Rng>(&mut self, rng: &mut R) -> f64 { + self.ind_sample(rng) + } } impl IndependentSample<f64> for LogNormal { fn ind_sample<R: Rng>(&self, rng: &mut R) -> f64 { @@ -179,7 +187,7 @@ mod bench { use std::prelude::v1::*; use self::test::Bencher; use std::mem::size_of; - use distributions::{Sample}; + use distributions::Sample; use super::Normal; #[bench] |
