[R] .Fortran or .C???

[Prof Brian Ripley]

On Mon, 21 Jan 2002, Juan Ramon Gonzalez wrote:

> Hello,
>
>  I have made a dll with mingw32 fortran compiler. I load my dll with the
dyn.load function, but when I call one of my Fortran procedures with the
.Fortran instruction, an error message appears saying that my function is
not in the load table. However, if I call my Fortran routines with ".C"
it works fine. I would like to know what is happening here. Is it usual to
call Fortran procedures with the .C function (in S-plus this problem doesn't
appear)?

[Single line broken manually: please make use of the Return key!]

No, it is not usual in R either.  You did something very unusual making
the DLL.  Please use the recommended facilities, either Rcmd SHLIB or
installing a package.

The utility pedump.exe is recommended in the R doumentation to see what is
going on.  Please make use of it.

BTW `in S-plus' is pretty unhelpful: even on Windows (which you forgot to
mention you are using) there are four quite different compilers and
conventions on different versions, three of which are current.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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