src/tools/clippy/tests/ui/manual_bits.rs

   1 // run-rustfix
   2
   3 #![warn(clippy::manual_bits)]
   4 #![allow(
   5     clippy::no_effect,
   6     clippy::useless_conversion,
   7     path_statements,
   8     unused_must_use,
   9     clippy::unnecessary_operation,
  10     clippy::unnecessary_cast
  11 )]
  12
  13 use std::mem::{size_of, size_of_val};
  14
  15 fn main() {
  16     size_of::<i8>() * 8;
  17     size_of::<i16>() * 8;
  18     size_of::<i32>() * 8;
  19     size_of::<i64>() * 8;
  20     size_of::<i128>() * 8;
  21     size_of::<isize>() * 8;
  22
  23     size_of::<u8>() * 8;
  24     size_of::<u16>() * 8;
  25     size_of::<u32>() * 8;
  26     size_of::<u64>() * 8;
  27     size_of::<u128>() * 8;
  28     size_of::<usize>() * 8;
  29
  30     8 * size_of::<i8>();
  31     8 * size_of::<i16>();
  32     8 * size_of::<i32>();
  33     8 * size_of::<i64>();
  34     8 * size_of::<i128>();
  35     8 * size_of::<isize>();
  36
  37     8 * size_of::<u8>();
  38     8 * size_of::<u16>();
  39     8 * size_of::<u32>();
  40     8 * size_of::<u64>();
  41     8 * size_of::<u128>();
  42     8 * size_of::<usize>();
  43
  44     size_of::<usize>() * 4;
  45     4 * size_of::<usize>();
  46     size_of::<bool>() * 8;
  47     8 * size_of::<bool>();
  48
  49     size_of_val(&0u32) * 8;
  50
  51     type Word = u32;
  52     size_of::<Word>() * 8;
  53     type Bool = bool;
  54     size_of::<Bool>() * 8;
  55
  56     let _: u32 = (size_of::<u128>() * 8) as u32;
  57     let _: u32 = (size_of::<u128>() * 8).try_into().unwrap();
  58     let _ = (size_of::<u128>() * 8).pow(5);
  59     let _ = &(size_of::<u128>() * 8);
  60 }