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#![warn(clippy::suboptimal_flops, clippy::imprecise_flops)]
#![allow(clippy::unnecessary_cast)]
// FIXME(f16_f128): add tests for these types when `powf` is available
fn main() {
let x = 3f32;
let _ = 2f32.powf(x);
//~^ suboptimal_flops
let _ = 2f32.powf(3.1);
//~^ suboptimal_flops
let _ = 2f32.powf(-3.1);
//~^ suboptimal_flops
let _ = std::f32::consts::E.powf(x);
//~^ suboptimal_flops
let _ = std::f32::consts::E.powf(3.1);
//~^ suboptimal_flops
let _ = std::f32::consts::E.powf(-3.1);
//~^ suboptimal_flops
let _ = x.powf(1.0 / 2.0);
//~^ suboptimal_flops
let _ = x.powf(1.0 / 3.0);
//~^ imprecise_flops
let _ = (x as f32).powf(1.0 / 3.0);
//~^ imprecise_flops
let _ = x.powf(3.0);
//~^ suboptimal_flops
let _ = x.powf(-2.0);
//~^ suboptimal_flops
let _ = x.powf(16_777_215.0);
//~^ suboptimal_flops
let _ = x.powf(-16_777_215.0);
//~^ suboptimal_flops
let _ = (x as f32).powf(-16_777_215.0);
//~^ suboptimal_flops
let _ = (x as f32).powf(3.0);
//~^ suboptimal_flops
let _ = (1.5_f32 + 1.0).powf(1.0 / 3.0);
//~^ imprecise_flops
let _ = 1.5_f64.powf(1.0 / 3.0);
//~^ imprecise_flops
let _ = 1.5_f64.powf(1.0 / 2.0);
//~^ suboptimal_flops
let _ = 1.5_f64.powf(3.0);
//~^ suboptimal_flops
macro_rules! m {
($e:expr) => {
5.5 - $e
};
}
let _ = 2f32.powf(1f32 + m!(2.0));
//~^ suboptimal_flops
// Cases where the lint shouldn't be applied
let _ = x.powf(2.1);
let _ = x.powf(-2.1);
let _ = x.powf(16_777_216.0);
let _ = x.powf(-16_777_216.0);
let x = 3f64;
let _ = 2f64.powf(x);
//~^ suboptimal_flops
let _ = 2f64.powf(3.1);
//~^ suboptimal_flops
let _ = 2f64.powf(-3.1);
//~^ suboptimal_flops
let _ = std::f64::consts::E.powf(x);
//~^ suboptimal_flops
let _ = std::f64::consts::E.powf(3.1);
//~^ suboptimal_flops
let _ = std::f64::consts::E.powf(-3.1);
//~^ suboptimal_flops
let _ = x.powf(1.0 / 2.0);
//~^ suboptimal_flops
let _ = x.powf(1.0 / 3.0);
//~^ imprecise_flops
let _ = x.powf(3.0);
//~^ suboptimal_flops
let _ = x.powf(-2.0);
//~^ suboptimal_flops
let _ = x.powf(-2_147_483_648.0);
//~^ suboptimal_flops
let _ = x.powf(2_147_483_647.0);
//~^ suboptimal_flops
// Cases where the lint shouldn't be applied
let _ = x.powf(2.1);
let _ = x.powf(-2.1);
let _ = x.powf(-2_147_483_649.0);
let _ = x.powf(2_147_483_648.0);
}
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