rust/tests/ui/cast.rs

#[warn(
    clippy::cast_precision_loss,
    clippy::cast_possible_truncation,
    clippy::cast_sign_loss,
    clippy::cast_possible_wrap
)]
#[allow(clippy::no_effect, clippy::unnecessary_operation)]
fn main() {
    // Test clippy::cast_precision_loss
    let x0 = 1i32;
    x0 as f32;
    let x1 = 1i64;
    x1 as f32;
    x1 as f64;
    let x2 = 1u32;
    x2 as f32;
    let x3 = 1u64;
    x3 as f32;
    x3 as f64;
    // Test clippy::cast_possible_truncation
    1f32 as i32;
    1f32 as u32;
    1f64 as f32;
    1i32 as i8;
    1i32 as u8;
    1f64 as isize;
    1f64 as usize;
    // Test clippy::cast_possible_wrap
    1u8 as i8;
    1u16 as i16;
    1u32 as i32;
    1u64 as i64;
    1usize as isize;
    // Test clippy::cast_sign_loss
    1i32 as u32;
    -1i32 as u32;
    1isize as usize;
    -1isize as usize;
    0i8 as u8;
    i8::max_value() as u8;
    i16::max_value() as u16;
    i32::max_value() as u32;
    i64::max_value() as u64;
    i128::max_value() as u128;
    (-1i8).abs() as u8;
    (-1i16).abs() as u16;
    (-1i32).abs() as u32;
    (-1i64).abs() as u64;
    (-1isize).abs() as usize;
}