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https://www.reddit.com/r/ProgrammerHumor/comments/1w2m4qz/bugintroduceddebugging/p6wlkwa/?context=3
r/ProgrammerHumor • u/ClipboardCopyPaste • 2d ago
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It's allowed to assign to a pointer if it's not dereferenced. Malloc always returns a valid pointer.
52 u/vishal340 2d ago but accessing it will be issue right? 40 u/backfire10z 2d ago Likely not. Malloc guarantees that the passed-in size is the minimum number of bytes it allocates, but not the maximum. You’d likely get some minimum sized chunk, somewhere between 16-32 bytes depending on the system as far as I understand it. 3 u/Deep-Piece3181 2d ago That’s an implementation detail it’s still 100% UB
52
but accessing it will be issue right?
40 u/backfire10z 2d ago Likely not. Malloc guarantees that the passed-in size is the minimum number of bytes it allocates, but not the maximum. You’d likely get some minimum sized chunk, somewhere between 16-32 bytes depending on the system as far as I understand it. 3 u/Deep-Piece3181 2d ago That’s an implementation detail it’s still 100% UB
40
Likely not. Malloc guarantees that the passed-in size is the minimum number of bytes it allocates, but not the maximum. You’d likely get some minimum sized chunk, somewhere between 16-32 bytes depending on the system as far as I understand it.
3 u/Deep-Piece3181 2d ago That’s an implementation detail it’s still 100% UB
3
That’s an implementation detail it’s still 100% UB
156
u/atanasius 2d ago
It's allowed to assign to a pointer if it's not dereferenced. Malloc always returns a valid pointer.