diff options
| author | Steve Klabnik <steve@steveklabnik.com> | 2015-03-04 16:27:18 -0500 |
|---|---|---|
| committer | Steve Klabnik <steve@steveklabnik.com> | 2015-03-04 16:27:18 -0500 |
| commit | 61a2766136536f9993ae095075ec766cfc729f8b (patch) | |
| tree | d8e4bf0410e4de50d7a3a94f2b2830cdc9dbc416 /src | |
| parent | 3b3bb0e682c2d252e9f62dd9df5cff9552af91ad (diff) | |
| download | rust-61a2766136536f9993ae095075ec766cfc729f8b.tar.gz rust-61a2766136536f9993ae095075ec766cfc729f8b.zip | |
Note the alternate form of vec in trpl
Diffstat (limited to 'src')
| -rw-r--r-- | src/doc/trpl/arrays-vectors-and-slices.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/doc/trpl/arrays-vectors-and-slices.md b/src/doc/trpl/arrays-vectors-and-slices.md index d4e2ad5cd5f..f1b5ecf4ff0 100644 --- a/src/doc/trpl/arrays-vectors-and-slices.md +++ b/src/doc/trpl/arrays-vectors-and-slices.md @@ -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, 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 arrays. In addition, (mutable) vectors can grow automatically: |