trying out a different approach (declarative) for presence of copy construcror

Author: romainfrancois

inst/include/Rcpp/traits/has_copy_constructor.h

@@ -27,7 +27,7 @@ namespace traits{
   template <typename T> struct has_copy_constructor :
     integral_constant<bool, std::is_copy_constructible<T>::value >{} ;
 #else
-  template<typename T> struct has_copy_constructor : true_type ;
+  template<typename T> struct has_copy_constructor : true_type {} ;
 #endif
 
 } // traits

inst/unitTests/cpp/Module.cpp

@@ -122,7 +122,7 @@ RCPP_EXPOSED_CLASS(ModuleTest)
 
 namespace Rcpp {
 namespace traits {
-  template <> struct has_copy_constructor<ModuleTest> : false_type ;
+  template <> struct has_copy_constructor<ModuleTest> : false_type {} ;
 }
 }