RE: [ROOT] Problem with template vector<>

From: Philippe Canal (pcanal@fnal.gov)
Date: Mon Mar 22 2004 - 22:36:01 MET 

Hi,

Your initial problem is a deficiency in CINT's handling of local object.
Masa is currently working to fix the problem.

In the meantime you have two work around.  One is to compile your code by
just doing
	.L vector.C+
(you will need to add a few more header file and change the name of
the macro).
Or you can allocate your object using new vector<TString>[27]

Cheers,
Philippe.

-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Kay Ulbrich
Sent: Monday, March 22, 2004 9:13 AM
To: roottalk@pcroot.cern.ch
Subject: [ROOT] Problem with template vector<>


Hello,

I am using ROOT Version 3.10/01, output of uname -a:
Linux HOST 2.4.10-4GB #1 Tue Sep 25 12:33:54 GMT 2001 i686 unknown

I have reproduced the problem I am encountering in a sample script.

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Begin of source code

#include <vector>

void vector(void)
{
  vector<TString> odsetnames[9][3];


odsetnames[2][0].push_back(TString("bell-anl_PLB94,310(80)_2250.5_tkin_1500.
0_plab_2250.5"));

odsetnames[2][0].push_back(TString("lehar-satu_NPB294,1013(87)_2354.2_tkin_1
596.0_plab_2354.2"));

odsetnames[2][0].push_back(TString("lehar-satu_NPB294,1013(87)_2354.2_tkin_1
596.0_plab_2354.2__2"));

odsetnames[2][0].push_back(TString("ball-satu_EPJA11,51(1999)_2353.1_tkin_15
95.0_plab_2353.1"));

  cout <<odsetnames[2][0].size()<<endl;
}
// End of source code
// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

When calling "root vector.C", the output I get is (I have stripped the
startup output):

-- begin of output --

root [0]
Processing vector.C...
4

 *** Break *** segmentation violation
 Generating stack trace...

-- end of output --

So obviously the vectors are initialised and
vector<TString>::push_back() and vector<TString>::size() work, but
nevertheless I get a segmentation fault. Is there something I should
do in a different way?

By the way, if I change the script such, that the include statement is
placed in the function block:

//>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Begin of source code
void vector(void)
{

#include <vector>

[ ... ]

}
// End of source code
// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

I get the output:

-- begin of output --

root [0]
Processing vector.C...
Error: class,struct,union or type input_iterator_tag not defined
FILE:/usr/local/cern/root/cint/stl/algobase.h LINE:63
Internal error: global function template arg type
FILE:/usr/local/cern/root/cint/stl/algobase.h LINE:63
*** Interpreter error recovered ***

-- end of output --

Thank you for your suggestions,
Kay



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