cfg_boolean_literals

The tracking issue for this feature is: #131204

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The cfg_boolean_literals feature makes it possible to use the true/false literal as cfg predicate. They always evaluate to true/false respectively.

Examples

#![feature(cfg_boolean_literals)]

#[cfg(true)]
const A: i32 = 5;

#[cfg(all(false))]
const A: i32 = 58 * 89;