WebbAPI documentation for the Rust `cfg_if` crate. A macro for defining #[cfg] if-else statements.. The macro provided by this crate, cfg_if, is similar to the if/elif C preprocessor macro by allowing definition of a cascade of #[cfg] cases, emitting the implementation which matches first. This allows you to conveniently provide a long list #[cfg]'d blocks of … Webb14 maj 2015 · 如果我们使用cargo build --features "foo"编译,它将会把--cfg feature="foo"标志传递给rustc,并且输出将会有一个foo模块。 如果我们使用常规的cargo build,没有额外的标志被传递,将不会有foo模块存在。 cfg_attr 你可以使用cfg_attr给基于cfg的变量设置另外一个属性: # [ cfg_attr (a, b)] 如果a被使用cfg设置过属性,则跟# [b]一样。 cfg! cfg! …
Cargo参数配置 - 《RustPrimer 中文版》 - 书栈网 · BookStack
WebbThe name of the feature is important and should not be changed. Check out the full example for how to use it . The unstable-doc-cfg feature should only be turned on when documenting, the #[doc_cfg(..)] attribute is otherwise identical … Webb16 juli 2024 · There is a rust-analyzer.cargo.features setting where you can specify a list of features. In VS Code, open the Extensions sidebar, click the gear icon next to the rust-analyzer extension, and choose “Extension Settings.”. You can choose whether to customize settings for all projects (the “User” tab) or just the current one (the ... jf鶴見花き平田
Features in rustc_feature - Rust
WebbCargo Feature 是非常强大的机制,可以为大家提供条件编译和可选依赖的高级特性。 [features] Featuure 可以通过 Cargo.toml 中的 [features] 部分来定义:其中每个 feature 通过列表的方式指定了它所能启用的其他 feature 或可选依赖。. 假设我们有一个 2D 图像处理库,然后该库所支持的图片格式可以通过以下方式 ... WebbReplace the path according to where your rust is installed. If the file doesnt exist, create a textfile.txt and rename it to client.cfg (make sure the extensions are visible in windows). … WebbThe same cfg(feature = "gif") syntax can be used in the code, and the dependency can be enabled just like any feature such as --features gif (see Command-line feature options … add a date in obsidian