[Rd] F77_CALL/NAME problem
nicola.lunardon at hotmail.it
Thu Mar 26 09:20:16 CET 2015
Thank you John and William for the replies!
@John: I downloaded the Fortran files from
(the link "dgesv.f plus dependencies"). In file dgesv.f the subroutine is
SUBROUTINE DGESV( N, NRHS, A, LDA, IPIV, B, LDB, INFO )
with capital letters.
@William: after looking for a while for a solution I discovered that R had
"embedded" all the things I needed, so I just got rid of F77_NAME/CALL in my
C code and simply called dgesv_ as declared in Lapack.h (adding as you
suggested #include <R_ext/Lapack.h> in the preamble). So I did not changed
the previous declarations of DGESV in my C file to lower case.
On the one hand, it seemed (and seems) to me quite odd that my old code did
not work and I would like to know why, even if it not a priority anymore. On
the other hand, I am happy to have found a new, and, I suppose, more
"R-package" oriented way, to use Fortran's linear algebra routines in my C
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