Re: Never returning a NULL pointer

From:

"Alf P. Steinbach" <alfps@start.no>

Newsgroups:

comp.lang.c++

Date:

Sat, 21 Mar 2009 00:55:42 +0100

Message-ID:

<gq1adu$kda$1@news.motzarella.org>

* Suraj:

Can someone suggest me a way of never returning a NULL pointer.

Say I have a class
class X
{
  int x;
  X();
  int GetValue(){return x;}
};

I am allocating memory for this structure dynamically. I want to
implement a GetPointer method which returns the pointer to the
allocation memory.

something like:-
ptr = GetPointer();

Its possible that the allocation failed, Its OK for me. Now throughout
the code i need to check for (ptr!=NULL) before using it.
I want to avoid this.

There's too little information to give any recommendation, other than try to
describe what problem you're trying to solve by this hypothetical solution.

It may be that you need a singleton, or that you need a never-null smart
pointer, or something else entirely.

So, try to describe what you're trying to solve.

Cheers & hth.,

- Alf

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