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</o:shapelayout></xml><![endif]--></head><body lang=DE-CH link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Dear list<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>My Rcpp source file contains a<i> </i></span><i><span lang=EN-US style='font-family:"Courier New"'>gsl_sf_hyperg_2F1()</span></i><span lang=EN-US> function, and for some input values to this function the return value is “</span><span lang=EN-US style='font-family:"Courier New"'>NaN</span><span lang=EN-US>”, which leads in RStudio to an abortion error.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>In order to avoid abortion errors, I try to implement a try/catch exception handler:<br><br><o:p></o:p></span></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>// [[Rcpp::depends(RcppGSL)]]<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>#include <RcppGSL.h><o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>#include <gsl/gsl_sf_hyperg.h><o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'><o:p> </o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>#include <Rcpp.h><o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>#include <math.h><o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>using namespace Rcpp;<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'><o:p> </o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>// [[Rcpp::export]]<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>int test()<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>{<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> try{<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> gsl_sf_hyperg_2F1(1,1,1.1467003,1); // abortion error since not defined<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> }<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> catch(std::domain_error& e){<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> std::cout << "Domain Error occurred!" << std::endl;<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> }<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'> return 0;<o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US style='font-family:"Courier New"'>} <o:p></o:p></span></i></p><p class=MsoNormal><i><span lang=EN-US><o:p> </o:p></span></i></p><p class=MsoNormal><span lang=EN-US>This seems to be wrong, since it still causes an abortion error in RStudio.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I appreciate any input<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thanks<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Devin<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>