OSDEV: Developing an Allocator in C++ Part 4. mem_malloc_aligned

▤ Summary

This article explains how to build an aligned memory allocator in C++ and how to handle allocation, free, and reallocation logic safely. It walks through the use of headers, footers, magic numbers, and offset storage to recover the original pointer from an aligned pointer. It also shows how the allocator checks block validity and handles invalid pointers during free and realloc operations. The piece is a hands-on engineering discussion focused on low-level memory management implementation details.

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