Question

What if memcpy() is used on overlapping buffers?

Answer 1

o.O Then, well, eh... bad things happen. heh.

Answer 2

It depends. If your destination buffer address is smaller than your source buffer address, it'll work fine - *once*. In the opposite case, obviously, the results can be pretty unpredictable as you may lose your source data by overwriting it.

Answer 3

It may also be worth noting that using memcpy incorrectly can cause some nasty Segmentation Faults. heh.