rust-clippy/tests/ui/cast_lossless_float.fixed
Philipp Hansch 8163a1a5f8
Move two cast_lossless tests to their correct files
First part of checking off the `tests/ui/cast.rs` checkbox in #3630.
2019-04-18 06:54:32 +02:00

34 lines
802 B
Rust

// run-rustfix
#![allow(clippy::no_effect, clippy::unnecessary_operation, dead_code)]
#![warn(clippy::cast_lossless)]
fn main() {
// Test clippy::cast_lossless with casts to floating-point types
let x0 = 1i8;
f32::from(x0);
f64::from(x0);
let x1 = 1u8;
f32::from(x1);
f64::from(x1);
let x2 = 1i16;
f32::from(x2);
f64::from(x2);
let x3 = 1u16;
f32::from(x3);
f64::from(x3);
let x4 = 1i32;
f64::from(x4);
let x5 = 1u32;
f64::from(x5);
// Test with casts from floating-point types
f64::from(1.0f32);
}
// The lint would suggest using `f64::from(input)` here but the `XX::from` function is not const,
// so we skip the lint if the expression is in a const fn.
// See #3656
const fn abc(input: f32) -> f64 {
input as f64
}