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// tests that input to a macro is checked for use of gated features. If this
// test succeeds due to the acceptance of a feature, pick a new feature to
// test. Not ideal, but oh well :(
fn main() {
let a = &[1, 2, 3];
println!("{}", {
extern "rust-intrinsic" { //~ ERROR intrinsics are subject to change
fn atomic_fence();
}
atomic_fence();
42
});
}
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