dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

On 01/02/11 21:46, Anders Logg wrote:
> On Tue, Feb 01, 2011 at 01:36:59PM -0800, Johan Hake wrote:
>> On Tuesday February 1 2011 13:18:54 Anders Logg wrote:
>>> What is the correct way to check whether a shared_ptr is NULL?
>>
>> What with:
>>
>>  bool has_child() const
>>  {
>>    return _child.count()!=0;
>>  }
> 
> Will try that.
> 
>> or just or implement a constructor for Hierarchical which initialize the
>> shared_ptr to 0?
> 
> I was under the impression it's always initialized to 0, 

That's true.

Garth

and
> initialization to zero should be handled by
> 
> _foo = shared_ptr<foo>();
> 
> --
> Anders
> 
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