Function countint

third-party/lua-5.5.0/src/ltable.c:470–476

static void countint (lua_Integer key, Counters *ct) {
  unsigned int k = arrayindex(key);
  if (k != 0) {  /* is 'key' an array index? */
    ct->nums[luaO_ceillog2(k)]++;  /* count as such */
    ct->na++;
  }
}


l_sinline int arraykeyisempty (const Table *t, unsigned key) {