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use std::alloc::Layout;
// ok
const LAYOUT_VALID: Layout = unsafe { Layout::from_size_align_unchecked(0x1000, 0x08) };
// not ok, since alignment needs to be non-zero.
const LAYOUT_INVALID: Layout = unsafe { Layout::from_size_align_unchecked(0x1000, 0x00) };
//~^ ERROR it is undefined behavior to use this value
fn main() {}
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