18 lines
452 B
Rust
18 lines
452 B
Rust
#![allow(unused_variables)]
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use std::mem;
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pub fn safe(x: &i32, y: &mut i32) {} //~ ERROR barrier
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fn main() {
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let mut x = 0;
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let xref = &mut x;
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let xraw: *mut i32 = unsafe { mem::transmute_copy(&xref) };
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let xshr = &*xref;
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// transmute fn ptr around so that we can avoid retagging
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let safe_raw: fn(x: *const i32, y: *mut i32) = unsafe {
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mem::transmute::<fn(&i32, &mut i32), _>(safe)
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};
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safe_raw(xshr, xraw);
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}
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