File: feature-gate-cfg-boolean-literals.rs

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rustc 1.85.0%2Bdfsg3-1
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#[cfg(true)] //~ ERROR `cfg(true)` is experimental
fn foo() {}

#[cfg_attr(true, cfg(false))] //~ ERROR `cfg(true)` is experimental
//~^ ERROR `cfg(false)` is experimental
fn foo() {}

fn main() {
    cfg!(false); //~ ERROR `cfg(false)` is experimental
}