Question

How can I bind a function with luabind that accept a variable number of parameters ?
Basically, I want to write my own print() function.

I know that the object class in luabind as a parameter can accept any data type, the best would be to received a dynamic table of luabind::object as a parameter.

Answer 1

I have made a mix between pure lua C API and luabind:

int myPrint(lua_State* L)
{
    int argCount = lua_gettop(L);

    for(int i = 1; i <= argCount; i++)
    {
        luabind::object obj(luabind::from_stack(L, i));

        switch(luabind::type(obj))
        {
            case LUA_TSTRING:
                cout << luabind::object_cast<std::string>(obj);
                break;
            case LUA_TNUMBER:
                cout << luabind::object_cast<double>(obj);
                break;
            case LUA_TBOOLEAN:
                cout << boolalpha << luabind::object_cast<bool>(obj);
                break;
            case LUA_TNIL:
                cout << "#Nil#";
                break;
            default:
                cout << "#Unknown type '" << luabind::type(obj) << "'#";
                break;
        }
    }

    cout << endl;

    return 0;
}