Re: [Lapackpp-devel] Compiling errors of tCmplxSolve.cc with updated lapackpp 2.4.12

[Christian S. <sti...@tu...>]

Am Samstag, 19. August 2006 13:35 schrieb Aosheng Rong:
> Can you add complex-value matrix support  on Windows?  The
> complex-value matrices are of essential to my applications. Lapackpp
> supports the complex-value matrices  very well on Linux.

Lapackpp supports complex-valued matrices on Windows as well, only with the 
gcc compiler and not (yet) with the MSVC compiler. (And C++, in contrast to 
C, is not compiler-independent.) I only need those matrices with the gcc 
compiler, so I have no motivation for myself to spend this extra effort.

You are invited to implement this yourself. In fact, why haven't you tried 
what I said? Add the macro LA_COMPLEX_SUPPORT to the MSVC project properties 
(C++ -> precompiler), and maybe add a few source files that haven't been 
added to the MSVC project because they only contain complex-matrix related 
code. matrix/src/gmc.cc, vc.cc and lavc.cc would be some that come to my 
mind. 

The only real problem that could occur is the definition of the 
la::complex<double> (typedef'd as LaComplex) in include/complex. The template 
complex<...> class definition in that file was initially copied from gcc's 
definition of complex<...>. Someone who wants to add complex support to MSVC 
would have to check whether these definitions can be used in MSVC as well, 
and potentially add some
#ifdef __GNUC__
  // existing code for gcc
#else
  // new code for MSVC instead
#endif
everywhere.

Good luck.

Christian


>
> Thanks,
> ----------
>
> On 8/19/06, Christian Stimming <sti...@tu...> wrote:
> > Seems to me you didn't compile the library lapackpp itself with the macro
> > LA_COMPLEX_SUPPORT defined. In the included vcproj file this is not (yet)
> > defined because, as I already said several times, the support for
> > complex-valued matrices in MSVC is untested so far.
> >
> > Christian