I got to avoid memory management for quite some time
I got to avoid memory management for quite some time
Finally I have a valid reason to learn about memory management. It was also hella weird when encountering it.
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RAII.
Can’t leak what never leaves the stack frame.
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Isn’t this for C++?
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Classes are just pretentious structs.
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How do you get destructor behavior in C?
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You call the destructor. It’s simply not automatically done for you with the concept of going out of scope.
Back when C++ was simply a text pre-processor for C, you could see these normal function calls. You can still see them in the un-optimized disassembly. There’s nothing magical about a destructor other than it being inserted automatically.
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being inserted automatically.
Aka the entire point of RAII
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The point of RAII is that a resource is allocated and freed in the same scope.
You can free it with an explicit call to a destructor, an implicit call, or with memory allocated on the stack, just wait for the stack frame to be exited.
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65 comments