Hello everyone, I hope I am doing the right thing in posting my question here. If no, sorry... I've been through the Rcpp FAQ, the Rcpp-Introduction vignette, the Appendix D The Windows toolset, and quite a lot of googling but I havn't found a solution to my problem. My final objective is to speed up a script that builds an estimated satellite image from three other images. I have factorized everything I could, tried a bit of parallel processing, but the script is still too slow so I would like to use some C++ inside it to reduce the computing time (using inline() for having C++ made functions instead of R-made functions). At the moment, I am just trying to run examples of inline(), but it doesn't work. Using the following example, R gives me error messages (one at he beginning of the R-GUI "ouput text", one at the end). Source of the example: http://stackoverflow.com/questions/7852520/how-to-make-inline-c-function-calls-in-r
>From what I understand of the error messages, g++ (the compiler, I think) >cannot be found. On this thread, someone had a problem that looks like mine, >it was a path problem : >http://lists.r-forge.r-project.org/pipermail/rcpp-devel/2012-March/003597.html When I type "path" on the Windows Command Prompt, I get this : PATH=C:\R\Rtools\bin;C:\R\Rtools\MinGW\bin;C:\R\R-2.15.1\bin No spaces in the directory names, I think it should be fine. However, it doesn't work. Could the problem come from Cygwin? If yes, do you have a clue on how to solve it? If no, could you tell me what I did wrong? I put sessionInfo() data at the end of my message. My computer runs on windows 7 enterprise, 32 bits. Thanks, Valentin Mansion ### example used : ### library(Rcpp) library(inline) xorig <- c(1, -2, 3, -4, 5, -6, 7) code <- ' Rcpp::NumericVector x(xs); Rcpp::NumericVector xa = sapply( x, ::fabs ); return(xa); ' xabs <- cxxfunction(signature(xs="numeric"), plugin="Rcpp", body=code) xabs(xorig) ### end of example ### ### error message at the begining of output text ### cygwin warning: MS-DOS style path detected: C:/R/R-215~1.1/etc/i386/Makeconf Preferred POSIX equivalent is: /cygdrive/c/R/R-215~1.1/etc/i386/Makeconf CYGWIN environment variable option "nodosfilewarning" turns off this warning. Consult the user's guide for more details about POSIX paths: http://cygwin.com/cygwin-ug-net/using.html#using-pathnames g++: not found make: *** [file146c5ece3f56.o] Error 127 ERROR(s) during compilation: source code errors or compiler configuration errors! ### end of error message at the beginning of output text ### ### error message at the end of output text### Error in compileCode(f, code, language = language, verbose = verbose) : Compilation ERROR, function(s)/method(s) not created! ###cygwin warning deleted to make the text shorter### g++: not found make: *** [file146c5ece3f56.o] Error 127 In addition: Warning message: running command 'C:/R/R-2.15.1/bin/i386/R CMD SHLIB file146c5ece3f56.cpp 2> file146c5ece3f56.cpp.err.txt' had status 1 ### end of error message ### ### sessionInfo() ### R version 2.15.1 (2012-06-22) Platform: i386-pc-mingw32/i386 (32-bit) locale: [1] LC_COLLATE=C LC_CTYPE=English_Australia.1252 LC_MONETARY=English_Australia.1252 LC_NUMERIC=C [5] LC_TIME=English_Australia.1252 attached base packages: [1] tools stats graphics grDevices utils datasets methods base other attached packages: [1] RcppArmadillo_0.3.2.0 inline_0.3.8 Rcpp_0.9.13 ### end of sessionInfo ### Une messagerie gratuite, garantie à vie et des services en plus, ça vous tente ? Je crée ma boîte mail www.laposte.net
_______________________________________________ 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
