cfg_panic

The tracking issue for this feature is: #77443

The cfg_panic feature makes it possible to execute different code depending on the panic strategy.

Possible values at the moment are "unwind" or "abort", although it is possible that new panic strategies may be added to Rust in the future.

Examples

#![allow(unused)]
#![feature(cfg_panic)]

fn main() {
#[cfg(panic = "unwind")]
fn a() {
    // ...
}

#[cfg(not(panic = "unwind"))]
fn a() {
    // ...
}

fn b() {
    if cfg!(panic = "abort") {
        // ...
    } else {
        // ...
    }
}
}