On 06/05/2011 11:04 AM, Paul Gilbert wrote:
Is it possible in R to call a fortran routine that sets variables in a common
block and expect the values to persist when a call is made from R to a second
routine that uses the common block?
I think the stats package does this; see src/library/stats/src/ppr.f.
The Fortran functions don't "know" that R is doing the calling, so
they'll set and read values as if they were called from a Fortran main
program.
Duncan Murdoch
If not (as I suspect), is it possible to use a common block in a group of
routines that are used together, for as long the routines do not return to R?
Paul
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