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			12 lines
		
	
	
		
			309 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			12 lines
		
	
	
		
			309 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| #![feature(rustc_attrs)]
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| 
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| use std::cell::Cell;
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| 
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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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|     let mut x = unsafe { NonZero(Cell::new(1)) };
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|     let y = &x.0; //~ ERROR borrow of layout constrained field with interior mutability
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| }
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