Function luaL_checkinteger

xrepo/packages/l/lua/port/lua/src/lauxlib.c:442–449

LUALIB_API lua_Integer luaL_checkinteger (lua_State *L, int arg) {
  int isnum;
  lua_Integer d = lua_tointegerx(L, arg, &isnum);
  if (l_unlikely(!isnum)) {
    interror(L, arg);
  }
  return d;
}


LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int arg,