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			14 lines
		
	
	
		
			233 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
		
			233 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| //@ check-pass
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| 
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| 
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| 
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| fn main() {
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|     let Some(n) = &mut &mut Some(5i32) else { return; };
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|     *n += 1; // OK
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|     let _ = n;
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| 
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|     let Some(n): &mut Option<i32> = &mut &mut Some(5i32) else { return; };
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|     *n += 1; // OK
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|     let _ = n;
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| }
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