Re: pointers in interactive use

Fons Rademakers (Fons.Rademakers@cern.ch)
Wed, 03 Jun 1998 12:48:20 +0200


Hi Damir,

this:

TH1F* h3("h3","h3",10,0.,1.)

has never been an allowed extension. This is ok (implicit
declaration of h3 to TH1F*):

h3 = new TH1F("h3","h3",10,0.,1.)

Cheers, Fons.

Damir Buskulic wrote:
>
> Just a strange behaviour. If you do :
>
> root [0] TH1F* h3("h3","h3",10,0.,1.)
> root [1] h3
> (class TH1F*)0x300000000000000
>
> this is not really a good mem location (obviously segfaults if you try
> for example h3->Print() )
>
> but if you do :
>
> root [8] TH1F* h4=new TH1F("h4","h4",10,0.,1.)
> root [9] h4
> (class TH1F*)0x14017d3e8
> root [10] h4.Print()
> TH1.Print Name= h4, Total sum= 0
>
> Everything goes OK. Does that mean that we should, for the time being,
> avoid using the Cint extensions to C++ also in interactive use and not
> only in macros ?
>
> Cheers
>
> Damir
> --
> =====================================================================
> | Damir Buskulic | Universite de Savoie/LAPP |
> | | Chemin de Bellevue, B.P. 110 |
> | Tel : +33 (0)450091600 | F-74941 Annecy-le-Vieux Cedex |
> | e-mail: buskulic@lapp.in2p3.fr | FRANCE |
> =====================================================================
> mailto:buskulic@lapp.in2p3.fr

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