Thanks both All seems to work now, whether I use R_chk_alloc etc. (as per RS.h) or the Delphi routines. Sounds like I might as well stick with the latter though, since I have to do the housekeeping anyway.
Mark #>should I bother using the R [memory allocation] routines instead [of the Delphi built-ins]? # #There is not much reason to need to use the R routines. The #disadvantages of using Delphi allocation are: # # - Your allocations won't be automatically deleted by the garbage #collector (but neither are those of Calloc, you need R_alloc for that) # - If allocation fails, it will be up to you to detect that and deal #with it. # #The disadvantage of using the R routines Calloc etc. is that # - You need to translate C macros to Delphi. # - You need to worry about whether the RS.h file has changed with #each release (but the Calloc etc. macros are likely to be very stable, #they haven't changed since 2000). # #Duncan Murdoch # #> if I do use the R replacements, what are their names nowadays? # #> R-EXTS refers to Calloc, Realloc and Free, but these aren't exported by #> R.DLL (for R1.9.0 or 1.9.1) and I couldn't find mention of any name #> change in the NEWS file. # #There is no change. R-exts does say you must include the appropriate #headers, in this case include/R_ext/RS.h. They are defines, and not just #simple calls to entry points. I'll leave you to take a closer look. # #-- #Brian D. Ripley, [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-devel