Hi
I've built a dll using Fortran code and can call it by either R or
Fortran. Calling by the former gives me the wrong answer and the later
gives the correct answer.
>From what I've read, it looks like I should use the subroutines DBLEPR,
INTPR and REALPR to print to the R console rather than using Fortran
standard I/O and that if I use the command
R CMD SHLIB source.f that these subroutines will automatically be found
(Please correct me if I'm wrong about any of this). The problem is that I
have to specify the gfortran compiler option -fno-range-check in order for
my code to compile. I've tried setting PKG_FCFLAGS=-fno-range-check in a
file named Makevars under the same directory as my Fortran files but this
doesn't seem to be the right place because R CMD SHLIB still produces
error messages related to integer overflow (the same error as when I run
gfortran -c MRPP.f90 as opposed to gfortran -c MRPP.f90 -fno-range-check)
when I type
R CMD SHLIB MRPP.f90.
So I was wondering if anyone could tell me how compiler option should be
specified when using R CMD SHLIB?
I appreciate the help.
Marian K Talbert
ASRC Management Servics
Contracted To:
US Geological Survey
Fort Collins Science Center
2150 Centre Ave., Bldg C
Fort Collins, CO 80526
Phone: 970-226-9108
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