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https://github.com/rust-lang/rust-clippy
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ff0d44e45a
Add lint to detect floating point operations that can be computed more accurately at the cost of performance. `cbrt`, `ln_1p` and `exp_m1` library functions call their equivalent cmath implementations which is slower but more accurate so moving checks for these under this new lint.
18 lines
439 B
Rust
18 lines
439 B
Rust
// run-rustfix
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#![warn(clippy::imprecise_flops)]
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fn main() {
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let x = 2f32;
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let _ = x.exp() - 1.0;
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let _ = x.exp() - 1.0 + 2.0;
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// Cases where the lint shouldn't be applied
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let _ = x.exp() - 2.0;
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let _ = x.exp() - 1.0 * 2.0;
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let x = 2f64;
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let _ = x.exp() - 1.0;
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let _ = x.exp() - 1.0 + 2.0;
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// Cases where the lint shouldn't be applied
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let _ = x.exp() - 2.0;
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let _ = x.exp() - 1.0 * 2.0;
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}
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