[Rd] dyn.load (PR#9364)

stefano iacus stefano.iacus at unimi.it
Wed Nov 15 15:08:48 CET 2006

In OS X you cannot "unload" dynamically linked code. This is a known  
"feature" of OS X :(
This is not an R bug.


On 15/nov/06, at 15:27, tuke at senet.com.au wrote:

> Full_Name: Jonathan Tuke
> Version: 2.4.0
> OS: Mac OS X 10.4.8
> Submission from: (NULL) (
> I am writing C code to implement in R. I am using R CMD SHLIB and then
> dyn.load("file.so"). The function I then call with .C("function").  
> Since I
> installed the latest R version, I have found that if I alter my C  
> code and
> recompile, then use dyn.load("file.so"), the function in R is not  
> updated but
> remains as the previous code. I have tried dyn.unload, but when I  
> use dyn.load()
> the initially loaded code is used. The only way to load the updated  
> c code is to
> quit R and then reopen.
> Thanks,
> Jono
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