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| fn main() { | |
| let n = 0; | |
| let val = loop { | |
| if n == 0 { | |
| break (1, "done"); | |
| } | |
| }; | |
| println!("val: {:?}", val) | |
| } |
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if n != 0makes it an infinite loop, compiler validates if all paths return the same data type.