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

   1 // run-rustfix
   2 #![warn(clippy::missing_spin_loop)]
   3 #![feature(lang_items, start, libc)]
   4 #![no_std]
   5
   6 use core::sync::atomic::{AtomicBool, Ordering};
   7
   8 #[start]
   9 fn main(_argc: isize, _argv: *const *const u8) -> isize {
  10     // This should trigger the lint
  11     let b = AtomicBool::new(true);
  12     // This should lint with `core::hint::spin_loop()`
  13     while b.load(Ordering::Acquire) {}
  14     0
  15 }
  16
  17 #[panic_handler]
  18 fn panic(_info: &core::panic::PanicInfo) -> ! {
  19     loop {}
  20 }
  21
  22 #[lang = "eh_personality"]
  23 extern "C" fn eh_personality() {}