Login | Register   
RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Home » Tip Bank » C++
Language: C++
Expertise: Intermediate
Mar 5, 2003



Application Security Testing: An Integral Part of DevOps

A Power Function for Integers

Need a quick and dirty way to exponentiate integers? Or perhaps you are working on a number library of your own. This will work in all cases.
template<class TYPE>
TYPE power(TYPE x, TYPE y) {
        if (y == 0) {           // Identity
                return 1;
        } else if (y > 0) {     //
                if (y % 2) {    // Odd
                        return x * power(x * x, y / 2);
                } else {        // Even
                        return power(x * x, y / 2);
        } else {        // Not Implemented
                return 0;
} // TYPE power(TYPE,TYPE)
Derrick Pallas
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



We have made updates to our Privacy Policy to reflect the implementation of the General Data Protection Regulation.
Thanks for your registration, follow us on our social networks to keep up-to-date