Function libffi_sys::ffi_prep_cif_var

pub unsafe extern "C" fn ffi_prep_cif_var(
    cif: *mut ffi_cif,
    abi: ffi_abi,
    nfixedargs: c_uint,
    ntotalargs: c_uint,
    rtype: *mut ffi_type,
    atypes: *mut *mut ffi_type
) -> ffi_status