rust-clippy/tests/ui/floating_point_powi.rs
Bruno A. Muciño be540e6596 Remove powi, "square can be computed more efficiently"
powi(2) produces exactly the same native code as x * x
2021-05-17 21:59:08 -05:00

20 lines
467 B
Rust

// run-rustfix
#![warn(clippy::suboptimal_flops)]
fn main() {
let one = 1;
let x = 3f32;
let y = 4f32;
let _ = x.powi(2) + y;
let _ = x + y.powi(2);
let _ = (x.powi(2) + y).sqrt();
let _ = (x + y.powi(2)).sqrt();
// Cases where the lint shouldn't be applied
let _ = x.powi(2);
let _ = x.powi(1 + 1);
let _ = x.powi(3);
let _ = x.powi(4) + y;
let _ = x.powi(one + 1);
let _ = (x.powi(2) + y.powi(2)).sqrt();
}