[Danubi]

Hi all,

I have recently moved from OF240 to OF4 and I am compiling the solvers and utilities I used to use. I am encountering problems with on preProcessing in particular.

I have these two lines in one of the utility's file:

fixedValueFvPatchVectorField& Upatch = refCast<fixedValueFvPatchVectorField>(U.boundaryField()[patchi]);
calculatedFvPatchVectorField& Uhpatch = refCast<calculatedFvPatchVectorField>(Uh.boundaryField()[patchi])

When compiling (wmake) I find these complains:

Making dependency list for source file mhdHunt.C
g++ -std=c++0x -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -O3  -DNoRepository -ftemplate-depth-100 -I/opt/openfoam4/src/finiteVolume/lnInclude -I/opt/openfoam4/src/meshTools/lnInclude -I/opt/openfoam4/src/sampling/lnInclude  -IlnInclude -I. -I/opt/openfoam4/src/OpenFOAM/lnInclude -I/opt/openfoam4/src/OSspecific/POSIX/lnInclude   -fPIC -c mhdHunt.C -o Make/linux64GccDPInt32Opt/mhdHunt.o
In file included from /opt/openfoam4/src/OpenFOAM/lnInclude/token.H:46:0,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/UListIO.C:28,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/UList.C:233,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/UList.H:484,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/List.H:43,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/labelList.H:48,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/UPstream.H:42,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/Pstream.H:42,
                 from /opt/openfoam4/src/OpenFOAM/lnInclude/parRun.H:35,
                 from /opt/openfoam4/src/finiteVolume/lnInclude/fvCFD.H:4,
                 from mhdHunt.C:26:
/opt/openfoam4/src/OpenFOAM/lnInclude/typeInfo.H: In instantiation of ‘To& Foam::refCast(From&) [with To = Foam::fixedValueFvPatchField<Foam::Vector<double> >; From = const Foam::fvPatchField<Foam::Vector<double> >]’:
inletHuntAnalysis.H:20:103:   required from here
/opt/openfoam4/src/OpenFOAM/lnInclude/typeInfo.H:110:35: error: cannot dynamic_cast ‘r’ (of type ‘const class Foam::fvPatchField<Foam::Vector<double> >’) to type ‘class Foam::fixedValueFvPatchField<Foam::Vector<double> >&’ (conversion casts away constness)
         return dynamic_cast<To&>(r);
                                   ^
/opt/openfoam4/src/OpenFOAM/lnInclude/typeInfo.H:119:35: error: cannot dynamic_cast ‘r’ (of type ‘const class Foam::fvPatchField<Foam::Vector<double> >’) to type ‘class Foam::fixedValueFvPatchField<Foam::Vector<double> >&’ (conversion casts away constness)
         return dynamic_cast<To&>(r);
                                   ^
/opt/openfoam4/src/OpenFOAM/lnInclude/typeInfo.H: In instantiation of ‘To& Foam::refCast(From&) [with To = Foam::calculatedFvPatchField<Foam::Vector<double> >; From = const Foam::fvPatchField<Foam::Vector<double> >]’:
inletHuntAnalysis.H:21:105:   required from here
/opt/openfoam4/src/OpenFOAM/lnInclude/typeInfo.H:110:35: error: cannot dynamic_cast ‘r’ (of type ‘const class Foam::fvPatchField<Foam::Vector<double> >’) to type ‘class Foam::calculatedFvPatchField<Foam::Vector<double> >&’ (conversion casts away constness)
         return dynamic_cast<To&>(r);
                                   ^
/opt/openfoam4/src/OpenFOAM/lnInclude/typeInfo.H:119:35: error: cannot dynamic_cast ‘r’ (of type ‘const class Foam::fvPatchField<Foam::Vector<double> >’) to type ‘class Foam::calculatedFvPatchField<Foam::Vector<double> >&’ (conversion casts away constness)
         return dynamic_cast<To&>(r);
                                   ^
/opt/openfoam4/wmake/rules/General/transform:8: recipe for target 'Make/linux64GccDPInt32Opt/mhdHunt.o' failed
make: *** [Make/linux64GccDPInt32Opt/mhdHunt.o] Error 1

I have properly wcleaned the folder.

I have solved some issues related to how times are declared within the utility. I suspect the problem should be related to the new syntaxis of of4.

Does anyone have a clue of what is going on?

Thanks all

[hjasak]

Yes. First case into const fixedValueFvPatchVectorField&

(see const) and then if you really have to, cast away const. If you don't know the second one, google it

Hrv

[mboesi]

since it took me some time to cast away the const, I thought it would be a good idea to post the solution here. In my case this worked to remove the constness:

fixedValueFvPatchVectorField& Upatch = 
    refCast<fixedValueFvPatchVectorField>(U.boundaryFieldRef()[patchi]);

calculatedFvPatchVectorField& Uhpatch = 
    refCast<calculatedFvPatchVectorField>(Uh.boundaryFieldRef()[patchi])

[jano]

Thanks Hrv and Markus. It's very useful.

So, to sum up, we just need to add "Ref" in previous code.

Jean