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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello all,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m using Rstudio 0.97.306, R 2.15-2, and Rcpp 0.10.2 with Windows 7 Professional x64. I recently switched to using the build tool in Rstudio, however, my generated file RcppExports.cpp and RcppExports.R are checked into version control, so they are read-only. The build fails with<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>***************<o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:blue'>==> Rcpp::compileAttributes()<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:blue'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:#C5060B'>Error in eval(expr, envir, enclos) : <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:#C5060B'> file io error: 'C:/Foundation/Common/RiskFinancialLibrary/Prototypes/FiservPrototypes/src/RcppExports.cpp'<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:#C5060B'>Calls: source ... withVisible -> eval -> eval -> <Anonymous> -> .Call<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:#C5060B'>Execution halted<o:p></o:p></span></p><p class=MsoNormal>***************<o:p></o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p> </o:p></span></p><p class=MsoNormal>I have them checked in as I need to modify RcppExports.cpp manually, after running compileAttributes(), to avoid compiling in Visual Studio (see below for explanation, if you are interested):<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue'>#ifndef</span><span style='font-size:9.5pt;font-family:Consolas'> _MSC_VER<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue'>#include</span><span style='font-size:9.5pt;font-family:Consolas'> <span style='color:#A31515'><Rcpp.h></span><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue'>using</span><span style='font-size:9.5pt;font-family:Consolas'> <span style='color:blue'>namespace</span> Rcpp;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal>…<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue'>#endif<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I tried removing the generated key at the top of RcppExports.cpp since this is mentioned in the Rcpp Attributes Vignette. However, I still have the error. Perhaps I’ve misinterpreted section 3.5.2 “Generated Code”?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In order to avoid generating traffic on the list let me comment on why I’m wrapping RcppExports.cpp with _MSC_VER. My employer produces all applications and libraries in Visual Studio. I wrap my ANSI C++ classes with .NET managed C++ classes and build a .NET assembly. This allows me to use Rcpp to test my C++ implementations of models against a clean implementation in R and fulfill company requirements that I use Visual Studio unit tests for quality assurance. I can then deliver the assembly build to developers for use in their own projects. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I may turn the previous paragraph into a presentation for the Atlanta R User’s Group.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Dale Smith, Ph.D.<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Senior Financial Quantitative Analyst<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Risk & Compliance<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Fiserv<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Office: 678-375-5315<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><a href="http://www.fiserv.com/"><span style='color:blue'>www.fiserv.com</span></a></span><span style='color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>