Function ispow2realasize

third-party/lua-5.4.6/src/ltable.c:278–280

** Check whether real size of the array is a power of 2. ** (If it is not, 'alimit' cannot be changed to any other value ** without changing the real size.) */

** without changing the real size.)
*/
static int ispow2realasize (const Table *t) {
  return (!isrealasize(t) || ispow2(t->alimit));
}


static unsigned int setlimittosize (Table *t) {