Hi all,
I've found a weird behaviour in root command line when I try to use
std::vectors on a Scientific Linux machine.
The problem appears when I create a std::vector<double> after having
loaded a library in which a std::vector<double> is used.
Needless to say, it works perfecly if I load no libraries.
To reproduce this problem I made a script, teststl.C which creates,
fills, and reads a std::vector<double>.
Then I set up class, MyClass which contains just a vector<double>* and I
created the shared library, libtest.so.
This is what I get just running the script:
*******************************************
* *
* W E L C O M E to R O O T *
* *
* Version 4.00/08 10 July 2004 *
* *
* You are welcome to visit our Web site *
* http://root.cern.ch *
* *
*******************************************
Compiled for linux with thread support.
CINT/ROOT C/C++ Interpreter version 5.15.138, May 23 2004
Type ? for help. Commands must be C++ statements.
Enclose multiple statements between { }.
root [0] .x teststl.C
2
a[0]=12
a[1]=1e-05
root [1]
and this is what happens if I load libtest.so, even f i dont' use
MyClass at all:
*******************************************
* *
* W E L C O M E to R O O T *
* *
* Version 4.00/08 10 July 2004 *
* *
* You are welcome to visit our Web site *
* http://root.cern.ch *
* *
*******************************************
Compiled for linux with thread support.
CINT/ROOT C/C++ Interpreter version 5.15.138, May 23 2004
Type ? for help. Commands must be C++ statements.
Enclose multiple statements between { }.
root [0] .L libtest.so
root [1] .x teststl.C
Error: Can't call vector<double,allocator<double> >::push_back(12.) in
current scope FILE:teststl.C LINE:5
Possible candidates are...
filename line:size busy function type and name (in
vector<double,allocator<double> >)
Error: Symbol a is not defined in current scope FILE:teststl.C LINE:5
Error: Failed to evaluate a.push_back(12.)Possible candidates are...
filename line:size busy function type and name
*** Interpreter error recovered ***
root [2]
I found that this error appears just on Scientific Linux v3, with gcc
version 3.2.3 20030502 (Red Hat Linux 3.2.3-39). I've tried with both
root 4.00.06 and root 4.00.08.
On the contrary, it works perfectly on RedHat 9, gcc 3.2.2 and RedHat
7.3 gcc 2.96.
Do you have any idea?
I have attached the code that reproduces the problem.
Thanks and Regards,
Alessandro
--
__________________________________________________________________________
Alessandro Thea
Ph.D. Student
Dipartimento di Fisica dell'Universita' di Genova and
Istituto Nazionale di Fisica Nucleare, Sezione di Genova,
Via Dodecaneso 33, I-16146, Genova, Italia.
Tel : +39 010 3536468 E-Mail: Alessandro.Thea@ge.infn.it
Cell: +39 349 2724919
__________________________________________________________________________
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