Comment by tombert
2 days ago
I agree. I almost feel like this should be like a flag in `free`. Like if you pass in 1 or something as a second argument (or maybe a `free_safe` function or something), it will automatically `memset` whatever it's freeing with 0's, and then do the normal freeing.
Alternatively, just make free do that by default, adding a fast_and_furious_free which doesn't do it, for the few hotspots where that tiny bit of performance is actually needed.
The default case should be the safe correct one, even if it “breaks” backward compatibility. Without it, we will forever be saddled with the design mistakes of the past.
https://news.ycombinator.com/item?id=46417221