Minimize Source File Dependencies to Reduce Compilation Time

To an extent, the orthodox approach of dedicating a separate .cpp and .h file for every class is the way to go. However, in real world programming, you soon find yourself recompiling every app for hours just because you added another data member to a class. I normally group several related classes in a single .h file. Similarly, I implement these classes in a single .cpp file.

The question is: What are related classes? Two derived classes can usually be considered related (think of a family of exception classes), and so are classes that depend on one another, or classes that participate in a single task.

My experience shows that when you change a class, you usually have to compile all the related classes. By grouping all the related declarations in a single physical file, you gain faster compilation and you also minimize the number of #include directives you need to use. (Note that with every #include directive, a substantial amount of time is wasted on accessing the physical files, opening them and reading their contents). When you have fewer separate physical files, the total build time is reduced, even if your app doesn’t change. Several compilers also have incremental compilation and link features that you can apply in order to reduce build time.

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


The Latest

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS

homes in the real estate industry

Exploring the Latest Tech Trends Impacting the Real Estate Industry

The real estate industry is changing thanks to the newest technological advancements. These new developments — from blockchain and AI to virtual reality and 3D printing — are poised to change how we buy and sell homes. Real estate brokers, buyers, sellers, wholesale real estate professionals, fix and flippers, and beyond may