.cc or .cpp: Which C File Extension Should You Choose?

C Code File Extensions: Navigating .cc vs. .cpp

In the realm of C development, code files can don two distinct extensions: .cc and .cpp. As you may have observed, code can be stored in both formats, leading to a lingering question—which approach reigns supreme?

The Google Style Guide seemingly advocates for .cc, but what other insights can be gleaned from the programming community? Let's delve into the nuances and considerations.

The Functional Distinction

Despite the differing extensions, both .cc and .cpp files serve the same fundamental purpose: storing C source code. Compilers treat them equally, effectively erasing any inherent functional advantage.

Consistency and Standardization

While there is no inherent technical distinction, adhering to a consistent convention within a team can facilitate seamless collaboration. If your team decides to adopt .cc, for instance, it ensures consistency in file naming and eliminates potential confusion.

Ultimately, the choice between .cc and .cpp boils down to personal preference and team consensus. Google's recommendation to use .cc is driven by its adherence to the Berkeley Standard Library style, not by any inherent technical superiority.

As a rule of thumb, if consistency is a high priority for your team, establish a clear guideline and stick to it. If not, the decision can be made on a case-by-case basis, weighing factors such as team preference or compatibility with existing conventions.

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