Avoiding memory leaks while using CINT

ROOT
1

Dear all,

I often use CINT in order to run several times routines that I have just compile. I create, for instance, my pointer to canvas

and can not delete it, because otherwise I won’t see it.
Rerunning the same code several times without quitting CINT would then lead to this:

[quote]root [2] .L routines/H_Display.cpp++
root [3] display_beamprofile(20)
root [4] display_beamprofile(20)
Warning in TH1::Build: Replacing existing histogram: Positions (Potential memory leak).[/quote]

and indeed, after a while, the probability for a segfault increases…

I know that this custom code works, to avoid the problem:

TCanvas* canprof = 0; if(gROOT->FindObject("can_profiles")) { can = (TCanvas*) gROOT->FindObject("can_profiles"); delete can; } canprof = new TCanvas("can_profiles","",50,50,800,800);

However, this looks like a possible overloading of the “new” operator would ease a lot, by doing all this at once:

Is there such an implementation or a variant or anything similar available?

Thanks!

2

[quote]However, this looks like a possible overloading of the “new” operator would ease a lot, by doing all this at once: [/quote]The problem with such a solution is that it would not be ‘optional’. And thus in the case were you really want to create 2 canvas with the same name, you would not be able to. (Of course, your alternative is to wrap your code snippet in a function :wink:)

Cheers,
Philippe.