Visual Stuido 8.0 and 5.11.06

ROOT
1

Hi Rooters,
I have used Axel Naumann’s visual c++/cygwin pages (muenster.de/~naumana/rootmsvc.html) to build 5.11.06 with Visual C++ 8.0 (2005) and Bertrand Bellenot’s MFCRoot application runs well.
I had to:

  1. Change the vc++ target from “c:\root\bin” to c:\root\bin"
  2. Rename c:\cygwin\bin\link.exe (not user\bin) to link_.exe.
  3. Remove libEGPythia6.lib from the vc++ library list.
    In my app, on the second pad of a canvas with twelve divisions
    the call
    fTree->Draw(cFormat,cChanCut,"");
    creates an access violation at the following line in
    ttreeplayer
    // invoke the selector
    Long64_t nrows = Process(fSelector,option,nentries,firstentry);
    I do not think libEGPythia6 is a problem. Also, I am not in a
    hurry to resolve this issue (the msi binary for 5.11.06 works).
    Still, all suggestions are welcome.

Cheers,
Steve Alam

2

Hi,

why are you stressing the “second pad of twelve” condition? Does it not happen for e.g. pad Seven of Nine (to pick some arbitrary example :-)?

Can you send us the output of TTree::Print and the values of cFormat and cChanCut?

Cheers, Axel.

3

Axel,
I stated things very badly: The first ->Draw call works - it is on a second pass through that the it fails. As soon as I can I will try to understand the difference. (Attached is the vc++ debugger expansion for the “good” tree and the “bad” tree structures - they are almost identical.)
Having stopped the second call I can see all of the plots but when the program exits 5.11.07 also has memory leaks that don’t appear with the .06 msi version. Later this week I will update from the CVS and rebuild.
Cheers,
Steve
bad-draw.txt (5.73 KB)
good-draw.txt (5.73 KB)

4

Hi Rooters,
More hints - I can stop the memory exception by not running the draw command in batch mode. This doesn’t appear to save me time anyway. As for the memory leak it is also there with Bertrand’s project. I will check back mid-week.
Cheers,
Steve

5

Hi,

I’ll try again: can you send us the output of TTree::Print and the values of cFormat and cChanCut?

Cheers, Axel.

6

Axel,
I have untarred the 5.12.00 sources, compiled them, and run both applications successfully - no exceptions, no leaks. Thanks for your very helpful instructions. By the way, I am running without a console and Ttree->print() shows nothing, but it is now moot.
Cheers,
Steve