devxlogo

The Rationale Behind Namespaces

The Rationale Behind Namespaces

Some users consider the addition of namespaces to C++ as superfluous or even harmful. In order to understand why namespaces were added to the language, imagine that the file system on your PC / Mainframe didn’t have any directories and subdirectories. All files would be stored in a flat repository, which would be visible to every user and application at all times. Consequently, you would run into extreme difficulties. Filenames would clash (with some systems limiting a filename to 8 characters + 3 for the extension, this is likely to happen); simple actions like listing, copying or searching files would be much more difficult; and security and authorization restrictions would be severely compromised.

Namespaces in C++ are equivalent to directories. They can be nested easily, they protect you from name clashes, they allow you to hide declarations simply by not using a namespace, and they do not incur any runtime or memory overhead.

See also  How to Block Websites During Certain Hours on a Mac Computer
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist