There are 2 posts tagged memory.
Memory leaks and dangling pointers are the main issues of the manual memory management. You delete a parent node in a linked list, forgetting to delete all its children first — and your memory is leaking. You delete an object chain in correct order — but suddenly your program crashes since you forgot about second owner of this resource, which now tries to dereference a null-pointer.
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This is the 6th lecture from the Garbage Collection Algorithms class, devoted to the automatic memory management.
Before discussing algorithms of collecting the garbage, we need to see how these objects (which eventually become a garbage) are allocated on the heap. In today’s lecture we consider mechanisms of memory allocation.