#![warn(clippy::unnecessary_cast)] #![allow(clippy::no_effect)] #[rustfmt::skip] fn main() { // Test cast_unnecessary 1i32 as i32; 1f32 as f32; false as bool; &1i32 as &i32; -1_i32 as i32; - 1_i32 as i32; -1f32 as f32; 1_i32 as i32; 1_f32 as f32; // macro version macro_rules! foo { ($a:ident, $b:ident) => { #[allow(unused)] pub fn $a() -> $b { 1 as $b } }; } foo!(a, i32); foo!(b, f32); foo!(c, f64); // do not lint cast to cfg-dependant type 1 as std::os::raw::c_char; }