tests/ui/c-variadic/no-closure.rs

#![feature(c_variadic)]
#![crate_type = "lib"]

// Check that `...` in closures is rejected.

const F: extern "C" fn(...) = |_: ...| {};
//~^ ERROR C-variadic type `...` may not be nested inside another type

fn foo() {
    let f = |...| {};
    //~^ ERROR: `..` patterns are not allowed here
    //~| ERROR: unexpected `...`

    let f = |_: ...| {};
    //~^ ERROR C-variadic type `...` may not be nested inside another type
    f(1i64)
}