Function init_lua_state

example/lua_callback_result.cpp:66–85

std::shared_ptr<lua_State> init_lua_state()
{
    // Create a new lua_State, we'll use std::shared_ptr for automatic cleanup.
    std::shared_ptr<lua_State> L(lua_open(), &lua_close);

    // Register the do_work function (above) as a C callback, under the global
    // Lua name "do_work". With this, calls from Lua programs to do_work will
    // land in the do_work C function we've registered.
    lua_register( &*L, "do_work", &do_work );

    // Pass some Lua code as a C string literal to Lua. This creates a global
    // Lua function called "call_do_work", which we will later ask Lua to
    // execute.
    luaL_dostring( &*L, "\
\n      function call_do_work()\
\n          return do_work()\
\n      end" );

    return L;
}


// Here we will ask Lua to execute the function call_do_work, which is written