26 lines
820 B
Rust
26 lines
820 B
Rust
// Strip out raw byte dumps to make comparison platform-independent:
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// normalize-stderr-test "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)"
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// normalize-stderr-test "([0-9a-f][0-9a-f] |╾─*a(lloc)?[0-9]+(\+[a-z0-9]+)?─*╼ )+ *│.*" -> "HEX_DUMP"
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use std::mem;
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#[derive(Copy, Clone)]
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enum Bar {}
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#[repr(C)]
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union MaybeUninit<T: Copy> {
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uninit: (),
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init: T,
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}
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const BAD_BAD_BAD: Bar = unsafe { MaybeUninit { uninit: () }.init };
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//~^ ERROR it is undefined behavior to use this value
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const BAD_BAD_REF: &Bar = unsafe { mem::transmute(1usize) };
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//~^ ERROR it is undefined behavior to use this value
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const BAD_BAD_ARRAY: [Bar; 1] = unsafe { MaybeUninit { uninit: () }.init };
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//~^ ERROR it is undefined behavior to use this value
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fn main() {}
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