Function isSCint

3rd/lua-5.4.3/src/lcode.c:1228–1230

** Check whether expression 'e' is a literal integer in ** proper range to fit in register sC */

** proper range to fit in register sC
*/
static int isSCint (expdesc *e) {
  return luaK_isKint(e) && fitsC(e->u.ival);
}


/*