src/test/ui/c-variadic/feature-gate-extended_varargs_abi_support.rs


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#![feature(abi_efiapi)]

fn efiapi(f: extern "efiapi" fn(usize, ...)) {
    //~^ ERROR: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
    //~^^ ERROR: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
    f(22, 44);
}
fn sysv(f: extern "sysv64" fn(usize, ...)) {
    //~^ ERROR: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
    //~^^ ERROR: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
    f(22, 44);
}
fn win(f: extern "win64" fn(usize, ...)) {
    //~^ ERROR: C-variadic function must have a compatible calling convention, like `C` or `cdecl`
    //~^^ ERROR: using calling conventions other than `C` or `cdecl` for varargs functions is unstable
    f(22, 44);
}

fn main() {}