search for: sarahmanderni

Hi, I am using an R package which includes C++ code inside. The package is functioning well under latest official R version but not under R-devel. I know that the C++ part is not functioning properly and I get an error using R-devel (it returns nothing to the R part of the program). Do I need to debug the C++ code separately for R-devel? Would be grateful if you could suggest any links with

...your code is "probably" doing something it shouldn't if things have suddenly stopped working. Try running R devel under gdb if you want to try to figure it out, e.g. (on linux, and possibly mac) <dir-for-Rdevel>/R -d gdb ~G On Wed, Feb 18, 2015 at 9:02 AM, sarah manderni <sarahmanderni at gmail.com> wrote: > Hi, > > I am using an R package which includes C++ code inside. The package is > functioning well under latest official R version but not under R-devel. I > know that the C++ part is not functioning properly and I get an error using > R-devel (it returns...

Hi, Within my R code, I am using a C++ function as below: overlaps <- matrix(0, nrow=B, ncol=length(N)) overlaps.P <- matrix(0, nrow=B, ncol=length(N)) .C("speedUp", D, S, pD, pS, nrow(D), as.integer(N), length(N), ssq[i], i, as.integer(B), overlaps, overlaps.P, DUP=FALSE) the function "speedUp", is supposed to update matrices overlaps

Thanks! I went through the online posts which supports the power of .Call over .C. But my probably naive question is why does this work for my code with R but not R-devel? And another question is related to using .Call. Based on the manual page, I do not need to change the function parameters when using .Call. So I can run like this: .Call("sppedUp", D, S, pD, pS, nrow(D), as.integer(N),