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rust/tests/compile-fail/ptr_int_cast.rs

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fn main() {
let x = &1;
// Casting down to u8 and back up to a pointer loses too much precision; this must not work.
let x = x as *const i32 as u8;
let x = x as *const i32; //~ ERROR: a raw memory access tried to access part of a pointer value as raw bytes
let _ = unsafe { *x };
}