C Puzzles

I am not sure why this is mentioned as a puzzle ... this is a very old (and common) idea used by a lot of game programmers from yesteryears.

The answer for completeness sake - common use is : allocate arbitrary size - anything above the size of the struct can be referenced as "data".
 

Yes. This is not exactly a puzzle. But I myself puzzled when I saw this piece of code first time in workspace :-)

So just thought to log it.

Thanks for your visit. and could you please send c-puzzles to me.

Thank You,
YaSJ
 

This is a zero byte array. Used to append data of arbit size at runtime. Very useful in sending data over a socket.
-angavras