I would like to call C routines from Fortran as suggested in section 5.6 of the "Writing R extensions" documentation.
I'm familiar with Fortran but not with C. I understand the example provided in Fortran: subroutine testit() double precision normrnd, x call rndstart() x = normrnd() call dblepr("X was", 5, x, 1) call rndend() end but I don't understand the purpose of this C wrapper: #include <R.h> void F77_SUB(rndstart)(void) { GetRNGstate(); } void F77_SUB(rndend)(void) { PutRNGstate(); } double F77_SUB(normrnd)(void) { return norm_rand(); } neither how I should compile it. Could anyone explain how I should compile and link the C and Fortran files above, and call the Fortran subroutine from R. Thanks, Gilles ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html