[Rcpp-devel] Resolving NativeSymbolInfos from Rcpp

Davor Cubranic cubranic at stat.ubc.ca
Sun Oct 7 22:40:17 CEST 2012

Just a heads up that the hack to convert NativeSymbolInfo of an object 
in one package to a function pointer that is called from another (in my 
case, calling "loess_raw" in stats from rgam), is not allowed any more 
in development versions of R and will cause a crash.


On 10-06-10 03:28 PM, Davor Cubranic wrote:
> On 2010-06-08, at 10:46 PM, Romain Francois wrote:
>>>> Reading the information on writing R extensions, it sounds like there
>>>> may not be a way to get to the address of an object in another
>>>> package's DLL. (In this case, in stats.so.) However, there is a
>>>> NativeSymbolInfo for stats:::R_loess_raw, which includes all sorts of
>>>> info about the C method. Is there a way that this can be used to get a
>>>> function pointer to it from within my code? And if this is too
>>>> unportable, is there a cleaner way?
>> After some more coffee, I came up with this:
>> [...]
>> Please expand the part that is actually suppose to call loess_raw and let us know if something useful happens.
> That worked like a charm, Romain, thank you so much! (At least on OS X, I only tested it there so far.)
> Davor

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