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Add diverging loops to diverging function section. #54

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May 17, 2017
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Add diverging loops to diverging function section. #54

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7 changes: 4 additions & 3 deletions src/items.md
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Expand Up @@ -365,9 +365,10 @@ fn my_err(s: &str) -> ! {
```

We call such functions "diverging" because they never return a value to the
caller. Every control path in a diverging function must end with a `panic!()` or
a call to another diverging function on every control path. The `!` annotation
does *not* denote a type.
caller. Every control path in a diverging function must end with a `panic!()`,
a loop expression without an associated break expression, or a call to another
diverging function on every control path. The `!` annotation does *not* denote
a type.

It might be necessary to declare a diverging function because as mentioned
previously, the typechecker checks that every control path in a function ends
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