Thread: declare function inside fork()

Is there anything wrong with declaring a function inside a forked block, eg:

Code:

pid=fork();
if (pid==0) {
      void newfunc() {
              [....]
      }
      [...]
      newfunc();
}

it seems to work, but just because no one stopped you doesn't make it right -- so I thought I'd ask and find out what kind of trouble may await.