Hi Alessandro, I have no problems with your test on SLC3. Your test script gives: root [0] .x teststl.C 2 a[0]=12 a[1]=1e-05 It is likely that you installed ROOT from source and did not run make cintdlls that creates the necessary precompiled headers/libs to deal with STL in CINT. Rene Brun Alessandro Thea wrote: > > 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 > __________________________________________________________________________ > > -------------------------------------------------------------------------------- > Name: libtest.tgz > libtest.tgz Type: unspecified type (application/octet-stream) > Encoding: base64
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