C/C++ Cheatsheet

This cheatsheet provides a curated collection of C and C++ code snippets covering modern language standards, system programming, and development tools. From basic syntax to advanced features like coroutines, templates, and memory management, each example is designed to be clear, practical, and ready to use. All code is tested and compiles cleanly, so you can focus on learning and adapting rather than debugging reference material.

Modern C Programming

Core C language features from C11 to C23, including memory management, preprocessor macros, GNU extensions, and build systems.

• C Basics
• Memory
• Preprocessor & GNU Extensions
• Makefile
• X86 Assembly

Modern C++ Programming

Modern C++ features from C++11 to C++23. Covers resource management with RAII and smart pointers, generic programming with templates and concepts, functional patterns with lambdas, compile-time computation with constexpr, and asynchronous programming with coroutines.

• C++ Basics
• Resource Management
• String
• Container
• Iterator
• Template
• Casting
• Constexpr
• Lambda
• Concepts
• Requires
• Time
• Smart Pointers
• Return Value Optimization
• Algorithm
• Coroutine
• Modules
• CMake

System Programming

POSIX system programming covering process management, file I/O, signals, network sockets, threading, and inter-process communication.

• Process
• File
• Signal
• Socket
• Thread
• IPC

CUDA Programming

GPU programming with NVIDIA CUDA. Covers kernel basics, memory hierarchy, cooperative groups, memory visibility, asynchronous pipelines, and multi-GPU communication.

• CUDA Basics
• CUDA C++ (libcu++)
• Thrust
• Cooperative Groups
• Memory Visibility
• Pipelines
• GPU-GPU Communication
• Hardware Topology

Bash & System Tools

Command-line tools and shell scripting for system administration, networking, and hardware inspection.

• Bash
• Operating System
• Network
• Hardware
• GPU
• Systemd

Debugging & Profiling

Tools for debugging, memory analysis, and performance profiling of C/C++ and CUDA applications.

• GDB
• Valgrind
• Sanitizers
• Tracing
• Perf
• Nsight Systems

Rust for C++ Developers

Rust programming guide for C++ developers. Maps C++ concepts to Rust equivalents with side-by-side code comparisons covering ownership, traits, error handling, smart pointers, and concurrency.

• Basics
• Ownership & Borrowing
• RAII & Drop
• Strings
• Collections
• Iterators
• Traits & Generics
• Casting
• Const Functions
• Closures
• Smart Pointers
• Error Handling
• Threads
• Modules
• FFI & C++ Bindings