Re: solve linear systems in boost::numerics::ublas
From: Oleg Trott (oleg_trott_at_columbia.edu)
Date: 02/20/04
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Date: Fri, 20 Feb 2004 16:44:09 -0500
Tino wrote:
>> Oleg Trott wrote:
>>
>> If you use the Fortran versions, you will also need G2C.
>
> Or you could just call the Fortran libraries directly from
> C/C++...just remember in Fortran, everything is passed by pointer. I
> have a class library that interfaces to LAPACK that I can show you as
> an example.
It probably depends on the compiler actually, but none of the compilers I
use (GCC and Intel) will link to LAPACK without G2C. I think the reason is
that some of the intrinsic Fortran functions (like lg10) do not exist in C,
and so they have to be provided in libraries.
Cheers,
Oleg
-- Oleg Trott <oleg_trott@columbia.edu>
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