2024 Cfg in rust

Cfg in rust

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WebApr 23, 2015 · You can use the following build script use std::env; pub fn main () { if let Ok (profile) = env::var ("PROFILE") { println! ("cargo:rustc-cfg=build= {:?}", profile); } } 7 Likes mark_buer May 30, 2016, 4:04am 8 The debug_assertions config option seems to be the legit way to do this. WebFeb 9, 2024 · save cfg in rust console? changed some settings in rust console to see if it will help game performance, but its not saving like it used to. also tried using "writecfg" and thats not doing anything. checked to make sure cfg file is not marked as "read only" as well.

Conditional Compilation - The Rust Programming Language

WebMay 20, 2024 · 1 Answer. Sorted by: 16. You can use cfg! (test): if cfg! (test) { // do test stuff } else { // do non-test stuff } However, this can lead to fragile code. For example, you might accidentally not execute some code in production, even though the tests all pass. It is often more robust to switch code at the item level, which would result in a ... WebRust by Example (RBE) is a collection of runnable examples that illustrate various Rust concepts and standard libraries. ... cfg!, unlike #[cfg], does not remove any code and … how many dry teaspoons in a cup

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WebThe cfg attribute conditionally includes the thing it is attached to based on a configuration predicate. It is written as cfg , ( , a configuration predicate, and finally ) . If the predicate … WebIf you want to know which cfg targets are available for another platform, such as 64-bit Windows, run rustc --print=cfg --target=x86_64-pc-windows-msvc. Unlike in your Rust source code, you cannot use [target.'cfg (feature = "fancy-feature")'.dependencies] to add dependencies based on optional features. Use the [features] section instead: WebSep 22, 2024 · Configuration management is a core concern in any nontrivial web application, and the Rust ecosystem provides everything you need and more. I have personally used configuration systems in countless languages and frameworks before, and I have to say, the config crate nailed this. high tier battlefield ffxi

cfg - Rust By Example

WebI have an example which only runs on *nix, so it causes errors on windows. Changing [ [example]] to [ [target.'cfg (not (target_family = "windows"))'.example]] (in Cargo.toml) did not work. Also tried using a declarative macro, but it doesn't actually work (seems item doesn't match mod ules), and isn't ideal even if it did work as it messes ... WebJan 22, 2024 · Connect to the Server with RCON. To make a connection to your Rust server, click on the "Server" button on the dark grey bar at the top of the RustAdmin window, then click "Connect". It should form an … high tien offshore engineeringWebThe documentation for cfg! states: Boolean evaluation of configuration flags. That means that cfg! (...) is replaced with a Boolean ( true / false ). Your code would look something like this, after it's expanded: fn test () -> u32 { let x = 3; if … high tie with great saphenous vein stripping

"WebFeb 9, 2024 · changed some settings in rust console to see if it will help game performance, but its not saving like it used to. also tried using "writecfg" and thats not doing anything. … " - Cfg in rust

Cfg in rust

Are you supposed to write tests in main.rs? : r/learnrust

WebSep 29, 2024 · #![cfg_attr(feature = "no_std", no_std)] #[cfg(feature = "no_std")] pub mod no_std; #[cfg(feature = "std")] pub mod std; Rust Analyzer told me: code is inactive due to #[cfg] directives: feature = "no_std" is disabled How to control the feature in lib.rs correctly? Moreover, I want to write a model dependent on rayon crate. WebJan 14, 2024 · Cargo will build your library in its normal (non-test) configuration, then build each integration test/benchmark as a sepate binary crate which links to that library. So library code marked with # [cfg (test)] is not available in integration tests/benches.

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WebI put tests in main.rs all the time. Here's my output: Finished test [unoptimized + debuginfo] target(s) in 2.04s Running unittests src\lib.rs (target\debug\deps\treehouse-376f820ce120463a.exe) running 0 tests test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s Running unittests src\main.rs … WebThe Rust Programming Language Conditional Compilation Rust has a special attribute, # [cfg], which allows you to compile code based on a flag passed to the compiler. It has …

WebAPI documentation for the Rust `cfg_if` macro in crate `cfg_if`. WebIntroducing cfg_boost crate with revamped syntax and macros to easily manage all #[cfg] parameters in one package. Quick links : cfg_boost on crates.io. List of features. Wiki. I'm currently finishing the Example wiki page. Feedback are always appreciated. ... yoshuawuyts1 • rust · async · microsoft ...

WebApr 12, 2024 · macro cfg_boost. cfg. _. boost. Revamped syntax and macros to easily manage all # [cfg] parameters in one package. Compatible with stable toolchain and no dependencies. See README / Homepage for more details. Owned by … WebIn this short video, I explain everything I know on how to maximize your rust fps/performance / Fps boost and reduce stutters/lag. Every time I reinstall win...

WebOct 30, 2024 · The above is a compiler configuration attribute. The cfg () is one of many built-in attributes. The above tells the Rust compiler that the following code should only be compiled when the test configuration is active. You can have other configuration attributes like debug, windows or features.

WebDec 23, 2014 · If you want your feature to have specific dependencies check the examples in the documentation. In your code, use # [cfg (feature="customfeature")] Run cargo … how many drywall screws per 4x8 sheet how many dry tablespoons in one cupWebApr 12, 2024 · macro cfg_boost. cfg. _. boost. Revamped syntax and macros to easily manage all # [cfg] parameters in one package. Compatible with stable toolchain and no … how many dry teaspoons in an ounceWebconfig. source ·. [ −] Config organizes hierarchical or layered configurations for Rust applications. Config lets you set a set of default parameters and then extend them via merging in configuration from a variety of sources: Environment variables. String literals in well-known formats. Another Config instance. high tier claim centerWebcfg_if - Rust [ −] [src] Crate cfg_if [ −] 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 … high tie waist trousersWebRust By Example cfg Configuration conditional checks are possible through two different operators: the cfg attribute: # [cfg (...)] in attribute position the cfg! macro: cfg! (...) in boolean expressions While the former enables conditional compilation, the latter … Some conditionals like target_os are implicitly provided by rustc, but custom … Evaluates boolean combinations of configuration flags at compile-time. In … how many dryer sheets to useWebMar 25, 2024 · You can also use cfg! syntax extension. if cfg! (windows) { println! ("this is windows"); } else if cfg! (unix) { println! ("this is unix alike"); } To just get macos, you can do: if cfg! (target_os = "macos") { println! ("cargo:rustc-link-lib=framework=CoreFoundation"); } Share Follow edited Apr 4, 2024 at 4:48 Evan Conrad 3,863 4 28 43 high tier bcnm ffxi