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Scott Klement wrote:
...
... If you only plan to allocate one copy in memory, it's perfectly safe to allocate 644 bytes of memory.


Normally that's true. But with regex_t, it has to be 656 bytes long, because the regex functions assume it is 656 bytes long.

sizeof(regex_t) in C gives 656, not 644.

I really really hate this "feature" of RPG, that it optimizes the amount of storage required for aligned data structures. I think %size returning a misleading value is a much greater evil than having 1-15 sometimes unnecessary bytes at the end of a data structure.


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