pointer delcaration

[Gamut]

can someone explain the difference between the foll declarations?

1. const T *pEle;
2. T * const pEle ;
3. const T * const pEle;

Thnx in Advance!

[PaulWendt]

Originally posted by Gamut
can someone explain the difference between the foll declarations?

1. const T *pEle;
2. T * const pEle ;
3. const T * const pEle;

Thnx in Advance!

1) This is a pointer to const. So, you cannot modify the object
you are pointing to through this pointer. You can make the
pointer point to another item, however.

2) This is a constant pointer to non-const data. You can modify
the data you're pointing at, but you cannot point to another item.

3) This is a constant pointer to const data. You can modify
neither the data you're pointing to nor the pointer itself.

--Paul

[Gamut]

Thanks!