Hi Thell, Thanks for all the work you've done investigating this. Can you please consolidate the information you have and post it as an issue here: https://github.com/RcppCore/Rcpp/issues?state=open?
And, if you're willing to dive in and figure out what exactly is happening, patches are much appreciated -- we will try to investigate as well. Thanks, Kevin On Fri, Feb 28, 2014 at 3:18 PM, Thell Fowler <tbfowl...@gmail.com> wrote: > On Wed, Feb 26, 2014 at 1:48 PM, Thell Fowler <tbfowl...@gmail.com> wrote: >> On Wed, Feb 26, 2014 at 12:56 PM, Thell Fowler <tbfowl...@gmail.com> wrote: >>> On Wed, Feb 26, 2014 at 12:33 PM, Dirk Eddelbuettel <e...@debian.org> wrote: >>>> >>>> On 26 February 2014 at 12:26, Thell Fowler wrote: >>>> | BTW - what was the fix/issue you tackled yesterday? Possibly any >>>> relation? >>>> >>>> Unrelated, mostly, as it was a for loop with iterators using comparison >>>> (wrongly) and arithmetic on the iterator object. In that case using >>>> old-school indices worked more reliably. Somewhat related in the sense that >>>> unnecessary complexity was added by trying to be clever via iterators. >>>> >>>> Here we don't know. It could be something in our backend, or it could be >>>> your >>>> code. >>>> >>>> Dirk >>>> >>>> -- >>>> Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com >>> >>> >>> Good point regarding 'being clever' with the iterators. >>> >>> Here's a small reproducible sample of without _anything_ else going on... >>> >>> https://gist.github.com/Thell/9231866 >>> > > --->8--- > >> >> Narrowed down to invalidation of pointer because data (vec) is moved >> _after_ the constructor exits. Setting the iterator member after the >> construction has completed looks to resolve the issue. >> >> So, construct, { init, use }... >> >> Is that change of address on purpose to facilitate the Rcpp/R bridge >> or is it a side effect? >> >> -- >> Sincerely, >> Thell > > I just wanted to report that if the std::vector<int> vectors are > changed to IntegerVector vectors the addresses reported in BadIter do > not change when the constructor completes. > > -- > Sincerely, > Thell > _______________________________________________ > Rcpp-devel mailing list > Rcpp-devel@lists.r-forge.r-project.org > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
