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single linked list iterator does not work

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Old   July 20, 2010, 07:00
Unhappy single linked list iterator does not work
  #1
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Tobias Holzinger
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Hello All!

I am just trying to create a SLList (single linked list) to store my timedependent data, a scalarField ...

I already managed to create the List, but the iterator function is not working...


Any Ideas why??

I created a dummy test:

Code:
#include "fvCFD.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 int main(int argc, char *argv[])
 {
    scalar t=0;
    scalarField a(6);
    SLList<scalarField> test;
    for (int i=0; i<=5; i++)
    {
        a[i]=i;
    }
    
    for (int i=0; i<=5; i++)
    {
        a[0]=t;
        for (int j=1; j<=5; j++)
        {
        a[j]+=1;
        }
        t++;
        test.append(a);

    Info << "test " << test.size()  <<endl;
    Info << "test "<< test.first()<<endl;
    Info << "test "<< test.last()<<endl;
    }
    
    SLList<scalarField>::iterator iterTest;
    for( iterTest=test.begin(); iterTest != test.end(); ++iterTest) 
    {
        Info << "Iterator" << iterTest << endl;
    }
}
thx

Tobi
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Old   July 20, 2010, 21:02
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Jianye Xia
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what do u mean the iterater not work? can u post the output of this test code?
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Old   July 21, 2010, 04:15
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Tobias Holzinger
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Hi,

sure... when I compile it the output is:


Code:
Making dependency list for source file test.C
test.C: In function ‘int main(int, char**)’: 
test.C:61: error: no matching function for call to ‘Foam::LList<Foam::SLListBase, Foam::Field<double> >::iterator::iterator()’
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/LList.H:246: note: candidates are: Foam::LList<LListBase, T>::iterator::iterator(typename LListBase::iterator) [with LListBase = Foam::SLListBase, T = Foam::Field<double>]
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/LList.H:238: note:                 Foam::LList<Foam::SLListBase, Foam::Field<double> >::iterator::iterator(const Foam::LList<Foam::SLListBase, Foam::Field<double> >::iterator&)
test.C:64: error: no match for ‘operator<<’ in ‘Foam::operator<<(((Foam::Ostream&)(&((Foam::OSstream*)Foam::Info.Foam::messageStream::operator Foam::OSstream&())->Foam::OSstream::<anonymous>)), ((const char*)"Iterator")) << iterTest’                                                                                                                           
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/scalarRange.H:134: note: candidates are: Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::scalarRange&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/lduMatrix.H:840: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::lduMatrix&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/globalMeshData.H:409: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::globalMeshData&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/lduSchedule.H:68: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::lduScheduleEntry&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/cellZone.H:266: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::cellZone&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/faceZone.H:324: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::faceZone&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/pointZone.H:268: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::pointZone&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/boundBox.H:227: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::boundBox&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/polyBoundaryMesh.H:199: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::polyBoundaryMesh&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/polyPatch.H:358: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::polyPatch&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/objectHit.H:123: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::objectHit&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/patchIdentifier.H:150: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::patchIdentifier&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/nil.H:83: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::nil&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/cellShape.H:164: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::cellShape&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/cellModel.H:175: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::cellModel&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/SHA1Digest.H:80: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::SHA1Digest&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/instant.H:147: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::instant&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/Switch.H:196: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::Switch&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/dimensionSet.H:296: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::dimensionSet&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/dictionary.H:478: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::dictionary&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/entry.H:177: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::entry&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/long.H:58: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, long int)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/Pstream.H:507: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::Pstream::commsStruct&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/token.H:433: note:                 std::ostream& Foam::operator<<(std::ostream&, const Foam::InfoProxy<Foam::token>&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/token.H:432: note:                 std::ostream& Foam::operator<<(std::ostream&, const Foam::token::punctuationToken&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/token.H:431: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::token::punctuationToken&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/token.H:434: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::token::compound&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/token.H:422: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::token&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/error.H:284: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::IOerror&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/error.H:179: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::error&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/Ostream.H:212: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, Foam::IOstream& (*)(Foam::IOstream&))
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/Ostream.H:206: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, Foam::Ostream& (*)(Foam::Ostream&))
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/IOstream.H:556: note:                 Foam::IOstream& Foam::operator<<(Foam::IOstream&, Foam::IOstream& (*)(Foam::IOstream&))
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/IOstream.H:546: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::IOstream::versionNumber&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/IOstream.H:545: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::IOstream::streamFormat&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/fileName.H:178: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::fileName&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/Scalar.H:282: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, Foam::doubleScalar)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/Scalar.H:282: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, Foam::floatScalar)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/uint.H:58: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, unsigned int)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/bool.H:50: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, bool)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/int.H:59: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, int)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/word.H:134: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::word&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/string.H:69: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const std::string&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/string.H:215: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const Foam::string&)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/char.H:52: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, const char*)
~/OpenFOAM/OpenFOAM-1.6.x/src/OpenFOAM/lnInclude/char.H:51: note:                 Foam::Ostream& Foam::operator<<(Foam::Ostream&, char)
make: *** [Make/linux64GccDPOpt/test.o] Error 1
any idea?

Tobi
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Old   July 21, 2010, 04:21
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Laurence R. McGlashan
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That won't even compile. The iterator needs one constructor argument:

Code:
for( SLList<scalarField>::iterator iterTest=test1.begin(); iterTest != test1.end(); ++iterTest)
    {
        Info << "Iterator" << *iterTest << endl;
    }
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Old   July 21, 2010, 04:53
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Tobias Holzinger
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Hy Laurence,

thanks it works. Do I understand right, that there is no empty constructor for this iterator??
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Old   July 21, 2010, 05:09
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Laurence R. McGlashan
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Have a look in the source here, from line 235. SLList inherits the iterator from LListBase. It would appear you have to either initialise the iterator with one argument, or implicitly assign an initial iterator value as I have done.
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Old   July 21, 2010, 21:45
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Jianye Xia
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Code:
 
//iterator must be initiated first
SLList<scalarField>::iterator iterTest=test.begin();
and there was no match output operator function related to Info<<sllist<Type>;
so you must call the operator() or operator* member function of the iterator first before you output it's value:
Code:
Info << "Iterator" << *iterTest << endl;
or
Code:
Info << "Iterator" << iterTest() << endl;
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