Learn C with Real Code Examples
Updated Nov 27, 2025
Performance Notes
Compile with optimization flags (`-O2` or `-O3` for GCC/Clang)
Minimize unnecessary memory allocation
Use efficient algorithms and data structures
Inline small functions for performance
Profile with tools like gprof or Valgrind
Security Notes
Avoid buffer overflows by validating input
Free dynamically allocated memory to prevent leaks
Sanitize user input to prevent injection attacks
Use static analysis tools to detect vulnerabilities
Follow secure coding standards (CERT C, MISRA)
Monitoring Analytics
Profiling with gprof
Memory leak detection with Valgrind
Static analysis for bugs and vulnerabilities
Logging runtime metrics in applications
Performance benchmarking for optimization
Code Quality
Follow C coding standards (K&R, MISRA)
Write modular and reusable functions
Comment code and document APIs
Use static and dynamic analysis tools
Perform unit and integration tests