Syntax question

[Stonehambey]

Here is some code I've read which overloads the new operator for a class, I have a couple of syntax questions about it

void *three_d::operator new[](size_t size)
{
  void *p;
  cout << "Allocating array of three_d objects.\n";
  // throw an exception on failure
  p = malloc(size);
  if(!p) {
    bad_alloc ba;
    throw ba;
  }
  return p;
}

Now new returns a memory address (I believe) so is void* what a function must return if it is to return that?

Also, this is overloading new to allocate memory for an array of objects, but I don't see how the code would change if we were to simply overload new normally?

Sorry if these questions seem a little trivial, but they've been bugging me for a couple of days now

Stonehambey

[matsp]

Yes, void * is the right return for new. It is identical for new [] and new - it's no difference to the memory allocation itself, only the calling of the constructor(s).

--
Mats

[Stonehambey]

Thanks