Re: Streamers and pointers to data members

Sorry I meant the gcc option -weffc++

Rene Brun

Rene Brun wrote:
> Yes, you MUST set to 0 all your pointers in the default constructor.
> By the way see interesting option -Weffc++ (from Scott Myers book),
> this will tell you what you are doing wrong in your constructors ::)
>
> Rene brun
>
> Philip Rodrigues wrote:
>> Hi roottalk,
>> I have a class with a data member which is a pointer to a TH2F. I can
>> successfully stream it to disk, but when I read it back, I get a
>> crash. The crash goes away if I set the TH2F pointer to zero in the
>> default constructor. (The attached file contains a minimal example -
>> run the "testrun.C" macro).
>>
>> So my question is, do I always need to set pointers to zero in
>> default constructors, or have I run into a bug? I couldn't see any
>> mention of this in the documentation.
>>
>> Thanks,
>> Philip
>
Received on Wed Nov 26 2008 - 15:30:27 CET