template problem

From: J. Wolfram (Wolfram_09_at_gmx.de)
Date: 02/28/05 

Date: Mon, 28 Feb 2005 20:06:33 +0100

Hi!

I need to write a template function which accepts a pointer (and a parameter
for the byte-offset between the elements and a parameter for the number of
elements.).

The different possible types which the pointer is pointing at can be for
example:

float[3]

short

byte[4]

...

So for the first type, the size of the first element would be
3*sizeof(float).

I would like to work inside the template function with a whole element, not
with each primitive data type.

The template function I created works perfectly if I use a pointer to an
element which just contains a primitive type.

If the element is array like in this example, the program crashes even
before a single instruction inside the function has been processed:

struct _AElement

{

  short Element;

}*APointer;

struct _BElement

{

  float Element[3];

}*BPointer;

APointer = (_AElement*)VoidPointer;

LogArray(APointer, 45, 102); // Okay!

BPointer = (_BElement*)VoidPointer;

LogArray(BPointer, 55, 400); // CRASH!

template <class ElementType> DWORD LogArray(ElementType* ArrayPointer, int
ArrayStride, int ArraySize)

{

  ...

}

What's the problem and what's a working alternative?

I am using the VS .Net 2004.

Thanks for your help!