Dear all, When using gdb to debug my C code, I use R_PV to show the content of SEXP variables:
SEXP sexp; // it is a data.frame SEXP colNames = getAttrib(sexp, R_NameSymbol); A strange thing is that after halting the program: (gdb) p R_PV(colNames) does not show the content of colNames. I am positive my code is right because if I insert "PrintValue(colNames);" in the c code, it will print the right value. My debug result shows that the variable "colNames" failed the "isObject" call. I am not sure whether this is a new feature or bug. Anyone can help? Thanks, Gang Liang ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel