erl_zig_nif_example/niftest.zig

const erl = @cImport({
  @cInclude("erl_nif.h");
});


pub export fn hello(env: ?*erl.ErlNifEnv, argc: c_int, argv: [*c]const erl.ERL_NIF_TERM) erl.ERL_NIF_TERM{
  _ = argv;
  _ = argc;
  //const ERL_NIF_LATIN1 = @as(c_uint, 1);
  return erl.enif_make_string(env, "Hello world!", 1); // ERL_NIF_LATIN1);
}


const nif_funcs = [_]erl.ErlNifFunc{
  .{
    .name = "hello",
    .arity = 0,
    .fptr = hello,
    .flags = 0,
  },
};


export fn nif_init() ?*erl.ErlNifEntry{
  return &nif_entry;
}


var nif_entry: erl.ErlNifEntry = .{
  .major = 2,
  .minor = 16,
  .name = "niftest",
  .num_of_funcs = nif_funcs.len,
  .funcs = @constCast(&nif_funcs),
  .load = null,
  .reload = null,
  .upgrade = null,
  .unload = null,
  .vm_variant = "beam.vanilla",
  .options = 1, // 0,
  .sizeof_ErlNifResourceTypeInit = @sizeOf(erl.ErlNifResourceTypeInit),
  .min_erts = "erts-12.0", // .entry_version = 3,
};