rust-clippy/tests/ui/transmute_float_to_int.fixed

32 lines
1 KiB
Rust

#![warn(clippy::transmute_float_to_int)]
fn float_to_int() {
let _: u32 = unsafe { 1f32.to_bits() };
//~^ ERROR: transmute from a `f32` to a `u32`
//~| NOTE: `-D clippy::transmute-float-to-int` implied by `-D warnings`
let _: i32 = unsafe { 1f32.to_bits() as i32 };
//~^ ERROR: transmute from a `f32` to a `i32`
let _: u64 = unsafe { 1f64.to_bits() };
//~^ ERROR: transmute from a `f64` to a `u64`
let _: i64 = unsafe { 1f64.to_bits() as i64 };
//~^ ERROR: transmute from a `f64` to a `i64`
let _: u64 = unsafe { 1.0f64.to_bits() };
//~^ ERROR: transmute from a `f64` to a `u64`
let _: u64 = unsafe { (-1.0f64).to_bits() };
//~^ ERROR: transmute from a `f64` to a `u64`
}
mod issue_5747 {
const VALUE32: i32 = unsafe { std::mem::transmute(1f32) };
const VALUE64: u64 = unsafe { std::mem::transmute(1f64) };
const fn to_bits_32(v: f32) -> u32 {
unsafe { std::mem::transmute(v) }
}
const fn to_bits_64(v: f64) -> i64 {
unsafe { std::mem::transmute(v) }
}
}
fn main() {}