Empowering everyone to build reliable and efficient software. This is the main Rust blog.Rust teams use this blog to announce major developments in the world of Rust.

Rust Documentation. Welcome to an overview of the documentation provided by the Rust project.This page contains links to various helpful references, most of which are available offline (if opened with rustup doc).Many of these resources take the form of “books”; we collectively call these “The Rust Bookshelf.”

Supplemental documentation for contributing to The Rust Programming Language

Hello, Cargo! Cargo is Rust’s build system and package manager. Most Rustaceans use this tool to manage their Rust projects because Cargo handles a lot of tasks for you, such as building your code, downloading the libraries your code depends on, and building those libraries.

Toolchain management with rustup. Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. rustup manages these builds in a consistent way on every platform that Rust supports, enabling installation of Rust from the …

rustupを使ったツールチェーンの管理. Rustはrustupというツールによってインストール・管理されます。 Rustには6週間ごとのラピッドリリースプロセスがあり、多数のプラットフォームをサポートしているので、 数多くのビルドがいつても利用できます。 rustupはこれらのビルドを、Rustがサポートし ...

Platform Support. Support for different platforms ("targets") are organized into three tiers, each with a different set of guarantees. For more information on the policies for targets at each tier, see the Target Tier Policy.. Targets are identified by their "target triple" which is the string to inform the compiler what kind of output should be produced.

Returns the number of leading zeros in the binary representation of self.. Depending on what you’re doing with the value, you might also be interested in the ilog2 function which returns a consistent number, even if the type widens. §Examples Basic usage:

A character type. The char type represents a single character. More specifically, since ‘character’ isn’t a well-defined concept in Unicode, char is a ‘Unicode scalar value’. This documentation describes a number of methods and trait implementations on the char type. For technical reasons, there is additional, separate documentation in the std::char module as well.

Advanced Types. The Rust type system has some features that we’ve so far mentioned but haven’t yet discussed. We’ll start by discussing newtypes in general as we examine why newtypes are useful as types.