| #![no_std] |
| #![feature(lang_items)] |
| #![warn(clippy::transmute_int_to_char)] |
| |
| use core::panic::PanicInfo; |
| |
| #[lang = "eh_personality"] |
| extern "C" fn eh_personality() {} |
| |
| #[panic_handler] |
| fn panic(info: &PanicInfo) -> ! { |
| loop {} |
| } |
| |
| fn int_to_char() { |
| let _: char = unsafe { core::char::from_u32(0_u32).unwrap() }; |
| //~^ ERROR: transmute from a `u32` to a `char` |
| //~| NOTE: `-D clippy::transmute-int-to-char` implied by `-D warnings` |
| let _: char = unsafe { core::char::from_u32(0_i32 as u32).unwrap() }; |
| //~^ ERROR: transmute from a `i32` to a `char` |
| |
| // These shouldn't warn |
| const _: char = unsafe { core::mem::transmute(0_u32) }; |
| const _: char = unsafe { core::mem::transmute(0_i32) }; |
| } |
| |
| fn main() {} |