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transpile: Make cast from bool to pointer compile through size_t #1134

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Sep 22, 2024
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transpile: Make cast from bool to pointer compile through size_t #1134

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7 changes: 7 additions & 0 deletions c2rust-transpile/src/translator/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -4282,6 +4282,13 @@ impl<'c> Translation<'c> {
target_ty,
)))
})
} else if target_ty_ctype.is_pointer() && source_ty_kind.is_bool() {
val.and_then(|x| {
Ok(WithStmts::new_val(mk().cast_expr(
mk().cast_expr(x, mk().path_ty(vec!["libc", "size_t"])),
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We really should change these to core::ffi:: instead of libc:: at some point, but it's fine here; that's what we've done so far.

target_ty,
)))
})
} else {
// Other numeric casts translate to Rust `as` casts,
// unless the cast is to a function pointer then use `transmute`.
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1 change: 1 addition & 0 deletions tests/casts/src/casts.c
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Expand Up @@ -30,4 +30,5 @@ void cast_stuff(void) {

bool b = true;
float x15 = b;
void* x16 = (void*)b;
}
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