added the RCPP_DISABLE_COPY_CONSTRUCTOR macro

Author: romainfrancois

inst/include/Rcpp/traits/has_copy_constructor.h

@@ -33,4 +33,9 @@ namespace traits{
 } // traits
 } // Rcpp
 
+#define RCPP_DISABLE_COPY_CONSTRUCTOR(CLASS)                          \
+  namespace Rcpp { namespace traits {                                 \
+    template <> struct has_copy_constructor<CLASS> : false_type {} ;  \
+  }}
+
 #endif

inst/unitTests/cpp/Module.cpp

@@ -119,12 +119,7 @@ class ModuleCopyConstructor {
 } ;
 
 RCPP_EXPOSED_CLASS(ModuleTest)
-
-namespace Rcpp {
-namespace traits {
-  template <> struct has_copy_constructor<ModuleTest> : false_type {} ;
-}
-}
+RCPP_DISABLE_COPY_CONSTRUCTOR(ModuleTest)
 
 class ModuleTest {
 public: