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			21 lines
		
	
	
		
			358 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			21 lines
		
	
	
		
			358 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
| #![feature(never_type, never_type_fallback)]
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| #![feature(min_exhaustive_patterns)]
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| 
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| #![allow(unreachable_code)]
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| #![deny(unreachable_patterns)]
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| 
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| enum Void {}
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| 
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| impl Iterator for Void {
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|     type Item = Void;
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| 
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|     fn next(&mut self) -> Option<Void> {
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|         None
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|     }
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| }
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| 
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| fn main() {
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|     for _ in unimplemented!() as Void {}
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|     //~^ ERROR unreachable pattern
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| }
 | 
