Re: Copying a struct to a larger struct?

On 27 Jul 2005 12:32:08 -0700, "hermes_917@xxxxxxxxx"
<kgarrison@xxxxxxxxx> wrote:

>I want to use memcpy to copy the contents of one struct to another
>which is a superset of the original struct (the second struct has extra
>members at the end). I wrote a small program to test this, and it
>seems to work fine, but are there any cases where doing something like
>this could cause any problems?

There is no guarantee that the padding in the common part of the two
structs is the same. It is also possible for the shorter struct to
have padding at the end but in the longer struct there could be an
actual member at the same offset.


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