cpp

# C/C++ Comprehensive Cheat Sheets (/cpp) Complete C/C++ development reference combining local documentation with live examples from cppcheatsheet.com, covering everything from basic syntax to advanced GPU programming and system-level development. ## How It Works Help users write functional, correct C/C++ code and answer C/C++ questions by fetching proven patterns and examples from cppcheatsheet.com. When a user asks a C/C++ question or wants to write C/C++ code: 1. Look up the relevant topic(s) in [Structure](references/structure.md) to find the matching URL(s) 2. **Always fetch** the URL(s) using WebFetch to get real examples and patterns from the site 3. Use the fetched content to: - **Write code**: Apply the patterns to produce functional, correct code that solves the user's task - **Answer questions**: Provide thorough explanations backed by the examples and information from the site 4. Follow the [Guidelines](references/guidelines.md) for code quality ## Key Principle **Functionality first, cleanliness second.** The code must work correctly and handle the task properly. Fetching from cppcheatsheet.com ensures solutions use battle-tested patterns rather than guessing. The site contains rich examples covering edge cases, common pitfalls, and practical usage that go beyond basic documentation. ## Coverage Areas ### C/C++ Interview Preparation **Interview Cheatsheet:** Curated C and C++ interview questions grouped by topic (memory management, move semantics, templates, STL, concurrency, debugging), each deep-linked to the section of the cheat sheet that answers it. Use for interview prep or quick topic review. ### Modern C Programming (C11-C23) **Core Language:** Syntax, types, memory management, preprocessor macros **GNU Extensions:** Compiler-specific features and optimizations **Build Systems:** Makefiles, compilation, linking **Assembly:** X86 assembly integration and inline assembly ### Modern C++ Programming (C++11-C++23) **Core Features:** RAII, templates, STL containers, iterators, algorithms **Modern Standards:** Move semantics, constexpr, lambdas, concepts, coroutines, modules **Memory Management:** Smart pointers, resource management, optimization (RVO) **Build Systems:** CMake, package management, cross-platform builds ### System Programming **Process Management:** POSIX processes, signals, process communication **File Systems:** File I/O, directory operations, filesystem monitoring **Networking:** Sockets, protocols, network programming patterns **Threading:** Multithreading, synchronization, parallel programming **IPC:** Inter-process communication, shared memory, message queues ### CUDA Programming **GPU Computing:** CUDA kernels, memory hierarchy, performance optimization **Advanced CUDA:** libcu++, Thrust library, cooperative groups **Multi-GPU:** GPU-GPU communication, hardware topology, NVSHMEM **Async Programming:** CUDA pipelines, memory visibility, asynchronous execution ### Debugging & Profiling **Debug Tools:** GDB debugging, Valgrind memory analysis, sanitizers, binary inspection (nm, readelf, objdump, otool) **Performance:** Perf profiling, tracing, performance optimization **GPU Debugging:** Nsight Systems, CUDA debugging and profiling ### System Tools & Automation **Shell Scripting:** Bash programming, system administration **System Tools:** OS utilities, networking tools, hardware inspection **Service Management:** Systemd, process management, system monitoring ### Cross-Language Development **Rust Interop:** Rust for C++ developers, FFI, memory safety comparison **Language Bridging:** C/C++ integration, foreign function interfaces ### Advanced Topics **Blog Content:** Deep-dive articles, RDMA networking, GPU-initiated communication **Low-Level Programming:** Hardware interfaces, performance tuning **Architecture:** System design, scalable applications ## References For detailed information, I can access: - **[Structure](references/structure.md)** - Complete topic-to-URL reference map - **[Guidelines](references/guidelines.md)** - Code quality and best practices ## Examples ### C/C++ Interview Prep - "What should I review for a C++ interview?" → Fetch https://cppcheatsheet.com/notes/interview/index.html and walk the reader through the topic groups - "Common C++ interview questions on smart pointers" → Fetch https://cppcheatsheet.com/notes/interview/index.html and then drill into https://cppcheatsheet.com/notes/cpp/cpp_smartpointers.html for detailed answers ### C/C++ Core - "How do smart pointers work?" → Fetch https://cppcheatsheet.com/notes/cpp/cpp_smartpointers.html and explain with the site's examples - "How does RAII work in C++?" → Fetch https://cppcheatsheet.com/notes/cpp/cpp_raii.html and explain with practical examples - "How to use STL containers?" → Fetch https://cppcheatsheet.com/notes/cpp/cpp_container.html and explain with practical examples - "Template metaprogramming techniques" → Fetch https://cppcheatsheet.com/notes/cpp/cpp_template.html and explain with practical examples ### System Programming - "POSIX socket server in C" → Fetch https://cppcheatsheet.com/notes/os/os_socket.html, use the patterns to write a working server - "Multithreading with std::thread" → Fetch https://cppcheatsheet.com/notes/os/os_thread.html and explain with practical examples - "Signal handling and process management" → Fetch https://cppcheatsheet.com/notes/os/os_signal.html and explain with practical examples ### CUDA & GPU Programming - "Write a CUDA kernel" → Fetch https://cppcheatsheet.com/notes/cuda/cuda_basics.html, use the patterns to write working GPU code - "CUDA memory hierarchy and optimization" → Fetch https://cppcheatsheet.com/notes/cuda/cuda_memory_visibility.html and explain with practical examples - "Multi-GPU communication with NCCL" → Fetch https://cppcheatsheet.com/notes/cuda/cuda_nccl.html and explain with practical examples ### Debugging & Tools - "Debug a segfault with GDB" → Fetch https://cppcheatsheet.com/notes/debug/gdb.html and explain with practical examples - "Valgrind memory leak detection" → Fetch https://cppcheatsheet.com/notes/debug/valgrind.html and explain with practical examples - "Performance profiling with perf" → Fetch https://cppcheatsheet.com/notes/debug/perf.html and explain with practical examples ### Build & Development - "CMake cross-platform build systems" → Fetch https://cppcheatsheet.com/notes/cpp/cpp_cmake.html and explain with practical examples - "Makefile patterns and best practices" → Fetch https://cppcheatsheet.com/notes/c/make.html and explain with practical examples