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Avoid to use floating point match #41292

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Merged
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Apr 14, 2017
Merged

Avoid to use floating point match #41292

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12 changes: 7 additions & 5 deletions src/librand/distributions/gamma.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -103,12 +103,14 @@ impl Gamma {
assert!(shape > 0.0, "Gamma::new called with shape <= 0");
assert!(scale > 0.0, "Gamma::new called with scale <= 0");

let repr = match shape {
1.0 => One(Exp::new(1.0 / scale)),
0.0...1.0 => Small(GammaSmallShape::new_raw(shape, scale)),
_ => Large(GammaLargeShape::new_raw(shape, scale)),
let repr = if shape == 1.0 {
One(Exp::new(1.0 / scale))
} else if 0.0 <= shape && shape < 1.0 {
Small(GammaSmallShape::new_raw(shape, scale))
} else {
Large(GammaLargeShape::new_raw(shape, scale))
};
Gamma { repr: repr }
Gamma { repr }
}
}

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