xref: /src/external/bsd/lutok/dist/examples/hello.cpp

// Copyright 2012 Google Inc.
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/// \file examples/hello.cpp
/// Minimal example using Lua code to print a traditional hello-world message.

#include <cstdlib>

#include <lutok/state.ipp>


/// Program's entry point.
///
/// \return A system exit code.
int
main(void)
{
    // Initializes a new Lua state.  Every Lua state is independent from each
    // other.
    lutok::state state;

    // Loads the standard library into the Lua state.  Among many other
    // functions, this gives us access to print(), which is used below.
    state.open_base();

    // Pushes the print() function into the Lua stack, then its only argument,
    // and then proceeds to execute it within the Lua state.
    state.get_global("print");
    state.push_string("Hello, world!");
    state.pcall(1, 0, 0);

    return EXIT_SUCCESS;
}