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It makes perfect sense, I should have tried using an example myself. Good point on the integer division!

Thank you for taking the time!

Thank you Dennis! SLOB_UNIT is defined as sizeof(slob_t), which is a struct describing a block.

I should have been more specific. What I meant to ask is, what is it that the formula represents?

#define SLOB_UNITS(size) (((size) + SLOB_UNIT - 1)/SLOB_UNIT)

Could someone explain to me what this does? I would be really greatful! :)