dolfin team mailing list archive

[Johan Hake <johan.hake@xxxxxxxxx>]

Hello!

I have just tried to compile DOFLIN on a CentOS5.5 (RHEL5) server, and it is 
almost there. However I get these warnings, which becomes errors:

FiniteElement.h
---------------
cc1plus: warnings being treated as errors                                                                                                                    
/home/hake/local/src/dolfin/dolfin/fem/FiniteElement.h:35: warning: ‘class 
dolfin::FiniteElement’ has virtual functions but non-virtual destructor

OpenMpAssemble.cpp
------------------
cc1plus: warnings being treated as errors                                                                                                                    
/home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp: In static member 
function ‘static void 
dolfin::OpenMpAssembler::assemble_cells(dolfin::GenericTensor&, const 
dolfin::Form&, dolfin::UFC&, const dolfin::MeshFunction<unsigned int>*, 
std::vector<double, std::allocator<double> >*)’:
/home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp:177: warning: 
iteration variable ‘cell_index’ is unsigned
/home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp: In static member 
function ‘static void 
dolfin::OpenMpAssembler::assemble_cells_and_exterior_facets(dolfin::GenericTensor&, 
const dolfin::Form&, dolfin::UFC&, const dolfin::MeshFunction<unsigned int>*, 
std::vector<double, std::allocator<double> >*)’:
/home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp:295: warning: 
iteration variable ‘cell_index’ is unsigned
/home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp: In static member 
function ‘static void 
dolfin::OpenMpAssembler::assemble_interior_facets(dolfin::GenericTensor&, 
const dolfin::Form&, dolfin::UFC&, const dolfin::MeshFunction<unsigned int>*, 
std::vector<double, std::allocator<double> >*)’:
/home/hake/local/src/dolfin/dolfin/fem/OpenMpAssembler.cpp:454: warning: 
iteration variable ‘facet_index’ is unsigned

The first one is easy to fix, but I wonder why the compiler has start 
complaining about that now. The other warning is just weird. Since when is it 
not good practice to iterate over an unsigned variable. And why is it not 
complaining elsewhere? Something to do with openmp? Not sure which version of 
openmp it is on the server...

The version of g++ is 4.1.2.

Johan