vec1

This crate provides a rust std::vec::Vec wrapper with type guarantees to contain at least 1 element. This is useful if you build a API which sometimes has such constraints e.g. you need at least one target server address but there can be more.

Example

#[macro_use]externcrate vec1;use vec1::Vec1;fnmain(){// vec1![] makes sure there is at least one element// at compiler time//let names = vec1! [ ];let names = vec1!["Liz"];greet(names);}fngreet(names:Vec1<&str>){// methods like first/last which return a Option on Vec do// directly return the value, we know it's possiblelet first = names.first();println!("hallo {}", first);for name in names.iter().skip(1){println!(" who is also know as {}", name)}}

Support for serde::{Serialize, Deserialize}

The Vec1 type supports both of serde's Serialize and Deserialize traits, but this feature is only enabled when the "serde" feature flag is specified in your project's Cargo.toml file:

# Cargo.toml
[dependencies]
vec1 = { version = "...", features = ["serde"] }

Building docs like on docs.rs

To build docs which document all features and contains hints which functions require which features use following command:

RUSTDOCFLAGS="--cfg docs" cargo +nightly doc --all-features

This will document all features and enable the unstable nightly only doc_auto_cfg feature.

License

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Contributors: ./CONTRIBUTORS.md

Change Log

See ./CHANGELOG.md