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Ublas : |
From: Tunc Bahcecioglu (tuncbah_at_[hidden])
Date: 2007-11-01 12:43:12
Thanks for the answer. I changed Lapack libraries and it solved my problem.
On 11/1/07, Jesse Manning <manning.jesse_at_[hidden]> wrote:
>
> First make sure you are successfully linking with the right .lib files.
>
> If you are fairly certain you are linking to the correct .lib files then
> you can open the .lib files in visual studio and search for the function
> that it says is undefined to make sure it is in the lib. Also depending on
> how the fortran code was compiled I think the function name mangling can be
> changed by compiler options. For example the function could be _dgesv_ or
> __dgesv, etc. instead of _degesv.
>
> When I was using visual studio I changed line 15 in the file
> bindings/traits/fortran.h
> from #define BIND_FORTRAN_LOWERCASE
> to #define BIND_FORTRAN_LOWERCASE_UNDERSCORE
>
> so it would append the underscore to the fortran function name I was
> trying to call when using visual studio.
>
>
> On 11/1/07, Tunc Bahcecioglu <tuncbah_at_[hidden]> wrote:
>
> > Hi,
> > I am using VSNET 2005 and trying to use lapack with the bindings. But I
> > get the following error:
> > Error 4 error LNK2001: unresolved external symbol
> > _dgesv boostLapackTry1.obj
> >
> > I put the lapack.lib,blas.lib and matgen.lib to the additional
> > dependencies.
> > I am trying to compile the following cods:
> >
> >
> > #include
> > <boost/numeric/bindings/lapack/gesv.hpp>
> >
> > #include
> > <boost/numeric/ublas/matrix.hpp>
> >
> > #include
> > <boost/numeric/bindings/traits/ublas_matrix.hpp>
> >
> > namespace
> > ublas = boost::numeric ::ublas;
> >
> > namespace
> > lapack = boost::numeric ::bindings::lapack;
> >
> > int
> > main()
> >
> > {
> >
> > ublas::matrix<double, ublas::column_major> A(3,3), B (3,1);
> >
> > lapack::gesv(A, B);
> >
> > return 0;
> >
> > }
> > I am a newbie to both libraries. Can one tell me what I am missing here.
> > Help appreciated.
> >
> >
> > _______________________________________________
> > ublas mailing list
> > ublas_at_[hidden]
> > http://lists.boost.org/mailman/listinfo.cgi/ublas
> >
> >
>
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