C++ Code Playground — Run & Debug C++ Online
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About the C++ Playground
Code Visualizer’s C++ playground lets you write, compile, and run C++ code directly in your browser. Watch as pointers resolve to memory addresses, stack frames push and pop, heap allocations appear and disappear, and RAII patterns manage resource lifetimes automatically.
Perfect for understanding manual memory management, debugging pointer arithmetic, learning smart pointers (unique_ptr, shared_ptr), and preparing for systems programming interviews. Set breakpoints, step through function calls, and see exactly where every object lives in memory.