ceilToMultipleOf method
Rounds a non-negative integer up to nearest multiple of multipleOf
that
is greater-than-or-equal-to this integer.
multipleOf
must be positive.
Implementation
int ceilToMultipleOf(int multipleOf) {
assert(this >= 0);
assert(multipleOf > 0);
return (this + multipleOf - 1).floorToMultipleOf(multipleOf);
}