Use the Conditional Operator Judiciously

The conditional operator,?, is a shorthand for a sequence of if-else statements. Although it has legitimate uses, in many cases programmers tend to misuse it, thereby producing unintelligible and buggy code. Sometimes, the use of the conditional operator yields undefined behavior. Consider this example:

   int n = 1;  n = (n != 0) ? n++ : 0; 

The value of n is unknown after the second statement executes. Not only is the expression n = (n != 0) ? n++ : 0; highly unreadable, it also yields undefined behavior, because when n is not 0, the expression evaluates to n = n++; which is undefined. Note that a well-behaved version of this expression is still unreadable.

   n = (n != 0) ?(n+1) : 0;  //well-behaved but still cryptic

Now consider a much simpler and well-behaved form that does exactly what the convoluted n = (n != 0) ?(n+1) : 0; does:

   if (n!=0)    n++;

This form is a significant improvement. It is best to avoid using the conditional operator in order to save a few keystrokes. Most of the time, you will find that a plain if-else sequence is more intelligible, efficient and well-behaved.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

technology leadership

Why the World Needs More Technology Leadership

As a fact, technology has touched every single aspect of our lives. And there are some technology giants in today’s world which have been frequently opined to have a strong influence on recent overall technological influence. Moreover, those tech giants have popular technology leaders leading the companies toward achieving greatness.

iOS app development

The Future of iOS App Development: Trends to Watch

When it launched in 2008, the Apple App Store only had 500 apps available. By the first quarter of 2022, the store had about 2.18 million iOS-exclusive apps. Average monthly app releases for the platform reached 34,000 in the first half of 2022, indicating rapid growth in iOS app development.

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job