C: The Memory Model and Stack Frames
This is part two of two. Part one covers variables, symbolic constants, and the preprocessor. C always evaluates expressions before executing C evaluates every expression before running it. If main is missing, the linker signals an error, that’s the entry point contract. Parameters to main (argc, argv) behave like local variables. No garbage collector In C there’s no garbage collector. Local variables are not “objects” managed by a runtime; they’re temporary allocations on registers or the stack. When the function returns, they’re gone. There’s no tracing, no finalization, no safety net. This is by design. ...