mirror of https://github.com/rust-lang/rust
12 lines
336 B
Rust
12 lines
336 B
Rust
#![feature(rustc_attrs)]
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#[rustc_layout_scalar_valid_range_start(1)]
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#[repr(transparent)]
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pub(crate) struct NonZero<T>(pub(crate) T);
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fn main() {}
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const fn foo() -> NonZero<u32> { NonZero(0) }
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//~^ ERROR initializing type with `rustc_layout_scalar_valid_range` attr is unsafe
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const fn bar() -> NonZero<u32> { unsafe { NonZero(0) } }
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