Lets explore the stack

An exploration of how the call stack works in C++, examining stack frames, alignment and padding of stack variables, and GCC/Clang builtins like __builtin_frame_address and -fstack-usage for inspecting stack memory. The author builds custom code to visualize stack variable placement and padding bytes, compares results across GCC, Clang, and ARM64, and discusses how declaration order can affect stack frame size and variable access speed, while noting most of this behavior is implementation-defined and platform-specific.

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