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This is more a semantic question than a coding question….
What’s the difference between a memory arena and a memory allocator?
I’m working in C++ and I’m seeing some memory management libs using concepts like “memory arena”, “memory allocator” and sometimes both in the same lib.
I know what an allocator is; I’m just not sure what a memory arena is if it’s not just another word for allocator.
“Memory arena” typically means a large lump (or collection of lumps) of memory from which smaller lumps are allocated. The word “pool” is also commonly used for such a thing.
“Memory allocator” typically means the software that determines how to allocate memory from an arena.