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