tests/ui/feature-gates/feature-gate-c_variadic.rs


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#![crate_type = "lib"]

pub unsafe extern "C" fn test(_: i32, ap: ...) {}
//~^ ERROR C-variadic functions are unstable

trait Trait {
    unsafe extern "C" fn trait_test(_: i32, ap: ...) {}
    //~^ ERROR C-variadic functions are unstable
}