BEGIN_RCPP uses the variables it defines (#671)

krlmlr · eddelbuettel · commit e1ef61d7b110 · 2017-04-14T07:33:48.000-05:00
* new BEGIN_RCPP_RETURN_ERROR that doesn't define unused variables

* silently remove warning instead
diff --git a/inst/include/Rcpp/macros/macros.h b/inst/include/Rcpp/macros/macros.h
@@ -29,7 +29,9 @@
 #ifndef BEGIN_RCPP
 #define BEGIN_RCPP                                                                               \
     int rcpp_output_type = 0 ;                                                                   \
+    (void)rcpp_output_type;                                                                      \
     SEXP rcpp_output_condition = R_NilValue ;                                                    \
+    (void)rcpp_output_condition;                                                                 \
     try {
 #endif
 
