Function luaK_intK

3rd/lua-5.4.3/src/lcode.c:587–592

** Add an integer to list of constants and return its index. ** Integers use userdata as keys to avoid collision with floats with ** same value; conversion to 'void*' is used only for hashing, so there ** are no "precision" problems. */

** are no "precision" problems.
*/
static int luaK_intK (FuncState *fs, lua_Integer n) {
  TValue k, o;
  setpvalue(&k, cast_voidp(cast_sizet(n)));
  setivalue(&o, n);
  return addk(fs, &k, &o);
}

/*
** Add a float to list of constants and return its index.