#![warn(clippy::transmute_float_to_int)] fn float_to_int() { let _: u32 = unsafe { std::mem::transmute(1f32) }; //~^ ERROR: transmute from a `f32` to a `u32` //~| NOTE: `-D clippy::transmute-float-to-int` implied by `-D warnings` let _: i32 = unsafe { std::mem::transmute(1f32) }; //~^ ERROR: transmute from a `f32` to a `i32` let _: u64 = unsafe { std::mem::transmute(1f64) }; //~^ ERROR: transmute from a `f64` to a `u64` let _: i64 = unsafe { std::mem::transmute(1f64) }; //~^ ERROR: transmute from a `f64` to a `i64` let _: u64 = unsafe { std::mem::transmute(1.0) }; //~^ ERROR: transmute from a `f64` to a `u64` let _: u64 = unsafe { std::mem::transmute(-1.0) }; //~^ 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() {}