Function AddInt64

math/checked/checked.go:17–23

AddInt64 returns a + b with an integer overflow check.

(a, b int64)

// AddInt64 returns a + b
// with an integer overflow check.
func AddInt64(a, b int64) (sum int64, ok bool) {
	if (b > 0 && a > math.MaxInt64-b) ||
		(b < 0 && a < math.MinInt64-b) {
		return 0, false
	}
	return a + b, true
}

// SubInt64 returns a - b
// with an integer overflow check.