Federico Mena Quintero

#rustlang peeps, c_char has different signedness on x86_64 vs. aarch64 (i8 vs. u8).

Do you get frequent shit like

returns_a_c_str().to_ptr() as *const _

with a warning about a trivial cast, on either platform? Short of disabling the "trivial casts" warning, is there a good way of fixing that portably?

Jul 1, 2023 at 3:40amWeb
Show threadbgt loverJul 1, 2023
@federicomena perhaps use actual into conversions. I never got that though, so yeah, not much to add unfortunately
Show threadTDplayJul 1, 2023

@federicomena The .cast() method on pointers doesn't seem to trigger the lint. It also comes with the added bonus that it can't accidentally cast *const into *mut.

https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=2a1d091a7bb85e39ffc0836e2465d392

Rust Playground

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Show threadFederico Mena QuinteroJul 1, 2023
@TDplay ooh, thank you! I'll try that!