and what about TClonesArray ? Consider such example without new/delete
overhead. You can use TClonesArray as a buffer for your histograms.
{
TClonesArray a("TH1F", 1000);
Char_t buf[10];
while(1) {
// Create some histograms
for(Int_t i=0; i<10000; i++)
{
sprintf(buf,"H%d", i);
new(a[i]) TH1F(buf, buf, 10, 0., 1.);
}
//Play whit histos
//Delete them
a.Delete();
}
}
Regards,
Jarek
On Fri, 4 Dec 1998, Jeff Patterson wrote:
> Hey Rooters,
>
> I am writing a macro that needs to create ALOT of TH1 and TH2.
> All of these histograms quickly eat up memory. I want to create a handful
> of them, get the numbers from them, deconstruct them (free up their
> memory), then construc the next set of them. I deconstruct them, but the
> memory does not seem to be freed up after words. I have tried many
> things. I use pointer to them.
>
> i.e.
> TH1F *one[10];
> TH2F *two[10];
> for(i=0, i<100, ++i)
> {
> one = new TH1F( STUFF DEPENDIING ON i);
> two = new TH2F(MORE STUFF DEPENDING on i);
> .
> .
> .
>
> //Store the numbers of counts in arrays
> //Now it's time to get rid of them !!!
>
> delete[] one;
> delete[] two;
> }
>
> If I run this loop, all my memory is quickly gone after a couple of
> itteration. The delete[] stuff does not seem to be working. I have also
> tried free(one[0]); free(one[1]); etc.....
> And calling the ~TH1F and ~TH2F desonctructos, and nothing seems
> to work. Where am I going wrong ?
>
>
> Thanks in advance,
> Jeff Patterson
>
>