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18 lines
560 B
Rust
18 lines
560 B
Rust
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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use num_traits::{Num, One, Zero};
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use std::ops::Div;
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pub fn checked_div<L: Num + Div<R, Output = T>, R: Num + Zero, T>(num: L, den: R) -> Option<T> {
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if den.is_zero() {
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return None;
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}
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return Some(num / den);
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}
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pub fn checked_inv<T: Num + Div<T, Output = T> + Zero + One>(den: T) -> Option<T> {
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return checked_div(T::one(), den);
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}
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