Re: [ublas] Newbie getting started

Subject: Re: [ublas] Newbie getting started
From: pem (pemryan_at_[hidden])
Date: 2012-04-11 22:02:34

The name  may be

DGESV
dgesv_
LAPACK_DGESV
lapack_dgesv_

etc, depends on the library you used.
use some tools provided by the comiler you can lookup the symbols.

for example, mingw gcc provides a tool named nm:

$ nm  lapack.lib | grep dgesv                                                                                                                                                                          
0000000000000000 I __imp_dgesv_
0000000000000000 T dgesv_
0000000000000000 I __imp_dgesvd_
0000000000000000 T dgesvd_
0000000000000000 I __imp_dgesvj_
0000000000000000 T dgesvj_
0000000000000000 I __imp_dgesvx_
0000000000000000 T dgesvx_
so I should use dgesv_ as function name for a correct linking.
(I assume) msvc should have similar tools.

also dont forget extern "C"  declaration if you are using a c++ compiler.

HTH,

Regards,


2012-04-12 
Ryan Ren



·¢¼þÈË£º Ushtarador 
·¢ËÍʱ¼ä£º 2012-04-12  02:52:57 
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Ö÷Ì⣺ Re: [ublas] Newbie getting started 
 
that doesnt seem very clean to me though, as I would have to redefine every
lapack function I use. 
Also, I dont use clapack, so that's not an option :/