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Rollup merge of #23039 - steveklabnik:doc_vec_macro, r=alexcrichton

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Manish Goregaokar 2015-03-06 08:58:58 +05:30
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src/doc/trpl/arrays-vectors-and-slices.md
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@ -60,6 +60,12 @@ let v = vec![1, 2, 3]; // v: Vec<i32>
brackets `[]` with `vec!`. Rust allows you to use either in either situation, brackets `[]` with `vec!`. Rust allows you to use either in either situation,
this is just convention.) this is just convention.)
There's an alternate form of `vec!` for repeating an initial value:
```
let v = vec![0; 10]; // ten zeroes
```
You can get the length of, iterate over, and subscript vectors just like You can get the length of, iterate over, and subscript vectors just like
arrays. In addition, (mutable) vectors can grow automatically: arrays. In addition, (mutable) vectors can grow automatically: