What is the difference between .cc and .cpp file suffix?

.cc and .cpp file extensions are common suffixes for C++ source code files. They serve identical purposes, informing the compiler and developers that the file is a source file written in the C++ programming language. The difference in suffixes stems primarily from historical reasons and preferences among various development environments or compilers.

Historical Background and Preferences:

1. .cpp Suffix:

   • .cpp is the most widely used C++ file extension, representing "C Plus Plus".
   • It is commonly employed across diverse operating systems and development environments, including Microsoft Visual Studio and other Windows-based tools.

2. .cc Suffix:

   • The .cc extension is more prevalent in Unix and Linux systems.
   • Some open-source projects and specific compilers (such as GCC) often prefer using the .cc extension.

Examples:

In a previous project, I utilized the GNU Compiler Collection (GCC) to develop C++ programs on Linux. The source code files used the .cc extension because the team members worked on Unix-like systems, where this extension is more commonly adopted and favored.

However, in another Windows project using Microsoft Visual Studio, all C++ source files had the .cpp extension. This is because Visual Studio defaults to creating and managing .cpp files, and most Windows developers are more familiar with this convention.

Conclusion:

Overall, .cc and .cpp have no technical distinctions; they are merely variations in file naming conventions. It is important to select the appropriate suffix based on your project team, compilation environment, and personal preference. In cross-platform projects or those involving multiple environments, standardizing code file extensions can reduce confusion and enhance code management efficiency.