Function Multiply64BitInt

math/modular/exponentiation.go:53–58

Multiply64BitInt Checking if the integer multiplication overflows

(left, right int64)

// Multiply64BitInt Checking if the integer multiplication overflows
func Multiply64BitInt(left, right int64) (int64, error) {
	if math.Abs(float64(left)) > float64(math.MaxInt64)/math.Abs(float64(right)) {
		return 0, ErrorIntOverflow
	}
	return left * right, nil
}