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That won't work here. Here, the goal is to have 'cfree': zero'ing out memory and then freeing it.



OK, shows me for skimming too much.

There apparently used to be a cfree though it appears to be equivalent to free.

I upvoted rwg's comment regarding CERT's Secure Coding wiki. memset_s is the correct solution given it is part of the C11 standard.




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