Macro rustler_sys::nif

macro_rules! nif {
    ($name:expr, $arity:expr, $function:expr, $flags:expr) => { ... };
    ($name:expr, $arity:expr, $function:expr) => { ... };
}

Create ErlNifFunc structure. Use inside nif_init!. (Deprecated)

This is deprecated; see the module level documentation for current nif_init! syntax.