Count pairs in table from C

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Hi,

I have a Lua function which returns a table with the results of the 

function and would like to check if all results are really set and no 

dict entries are missing, after calling this function from C.

I know that the result table should have five dictionary entries if

everything went fine.

Is there a more elegant way or a more Lua like solution to figure out 

if my function returned everything I expect than counting the pairs in

the following way:

     int count = 0;

     lua_pushnil(L);
     while (lua_next(L, t) != 0) {
       count++;
       lua_pop(L, 1);
     }

     if (count < 5) /* do something ... */

Thanks,

Regards,

Jörg