77                const int nresults, const int errfunc)  in do_file()  argument
79     assert(nresults >= -1);  in do_file()
86         s.pcall(nargs, nresults == -1 ? LUA_MULTRET : nresults,  in do_file()
94     assert(nresults == -1 || actual_results == nresults);  in do_file()
117                  const int nresults, const int errfunc)  in do_string()  argument
119     assert(nresults >= -1);  in do_string()
126         s.pcall(nargs, nresults == -1 ? LUA_MULTRET : nresults,  in do_string()
134     assert(nresults == -1 || actual_results == nresults);  in do_string()
149 lutok::eval(state& s, const std::string& expression, const int nresults)  in eval()  argument
151     assert(nresults > 0);  in eval()
152     do_string(s, "return " + expression, 0, nresults, 0);  in eval()