rust/tests/ui/manual_bits.rs
2024-10-18 21:41:05 +01:00

70 lines
1.5 KiB
Rust

#![warn(clippy::manual_bits)]
#![allow(
clippy::no_effect,
clippy::useless_conversion,
path_statements,
unused_must_use,
clippy::unnecessary_operation,
clippy::unnecessary_cast
)]
use std::mem::{size_of, size_of_val};
fn main() {
size_of::<i8>() * 8;
size_of::<i16>() * 8;
size_of::<i32>() * 8;
size_of::<i64>() * 8;
size_of::<i128>() * 8;
size_of::<isize>() * 8;
size_of::<u8>() * 8;
size_of::<u16>() * 8;
size_of::<u32>() * 8;
size_of::<u64>() * 8;
size_of::<u128>() * 8;
size_of::<usize>() * 8;
8 * size_of::<i8>();
8 * size_of::<i16>();
8 * size_of::<i32>();
8 * size_of::<i64>();
8 * size_of::<i128>();
8 * size_of::<isize>();
8 * size_of::<u8>();
8 * size_of::<u16>();
8 * size_of::<u32>();
8 * size_of::<u64>();
8 * size_of::<u128>();
8 * size_of::<usize>();
size_of::<usize>() * 4;
4 * size_of::<usize>();
size_of::<bool>() * 8;
8 * size_of::<bool>();
size_of_val(&0u32) * 8;
type Word = u32;
size_of::<Word>() * 8;
type Bool = bool;
size_of::<Bool>() * 8;
let _: u32 = (size_of::<u128>() * 8) as u32;
let _: u32 = (size_of::<u128>() * 8).try_into().unwrap();
let _ = (size_of::<u128>() * 8).pow(5);
let _ = &(size_of::<u128>() * 8);
}
fn should_not_lint() {
macro_rules! bits_via_macro {
($T: ty) => {
size_of::<$T>() * 8;
};
}
bits_via_macro!(u8);
bits_via_macro!(String);
}