CPP

CPP (C PreProcessor) is a core component of the GCC compiler toolchain used for preprocessing C and C++ source code before compilation. It processes directives such as macros, file inclusion, and conditional compilation to prepare source code for the compiler.

Key Features of CPP:

• Handles macro expansion using #define for code reuse and simplification.
• Processes file inclusion using #include to integrate header files.
• Supports conditional compilation using directives like #ifdef, #ifndef, and #endif.
• Acts as the first stage of the GCC compilation pipeline before actual compilation.
• Improves code modularity and maintainability in C/C++ projects.
• Essential for building system-level applications and large-scale software projects.
• Lightweight and fast preprocessing utility integrated with GCC toolchain.
• Widely used in Linux, embedded systems, and software development environments.

Check CPP version:
$sudo su
$cpp --version