File: cfg.rs

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rustc 1.85.0%2Bdfsg3-1
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fn main() {
    cfg!(); //~ ERROR macro requires a cfg-pattern
    cfg!(123); //~ ERROR literal in `cfg` predicate value must be a boolean
    cfg!(foo = 123); //~ ERROR literal in `cfg` predicate value must be a string
    cfg!(foo, bar); //~ ERROR expected 1 cfg-pattern
}