O manual de 5.2 também está assim. > > I read http://www.lua.org/manual/5.3/manual.html#lua_pushcfunction > > > > --- > > lua_pushcfunction is defined as a macro: > > > > #define lua_pushcfunction(L,f) lua_pushcclosure(L,f,0) > > > > Note that f is used twice. > > ---- > > > > Why f is used twice ? I saw only once. > > Sure! Thanks for the feedback. > > -- Roberto