17 lines
629 B
Rust
17 lines
629 B
Rust
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//@ check-pass
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#![feature(const_mut_refs)]
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use std::ptr;
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// This code should remain unsafe because of the two unsafe operations here,
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// even if in a hypothetical future we deem all &raw (const|mut) *ptr exprs safe.
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static mut BYTE: u8 = 0;
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static mut BYTE_PTR: *mut u8 = ptr::addr_of_mut!(BYTE);
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// An unsafe static's ident is a place expression in its own right, so despite the above being safe
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// (it's fine to create raw refs to places!) the following derefs the ptr before creating its ref
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static mut DEREF_BYTE_PTR: *mut u8 = unsafe { ptr::addr_of_mut!(*BYTE_PTR) };
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fn main() {
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let _ = unsafe { DEREF_BYTE_PTR };
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}
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