rust/tests/ui/unnecessary_cast.rs

34 lines
618 B
Rust

#![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;
}