Take XmlRpcValue by *const* ref. in operator<<

This allows to use the operator<< also with const references to XmlRpcValue objects, not only non-const ones.
ros · Mar 16, 2018 · 8a14ab8 · 8a14ab8
1 parent 94aaaec
commit 8a14ab8
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git a/utilities/xmlrpcpp/include/xmlrpcpp/XmlRpcValue.h b/utilities/xmlrpcpp/include/xmlrpcpp/XmlRpcValue.h
@@ -189,7 +189,7 @@ namespace XmlRpc {
 } // namespace XmlRpc
 
 
-std::ostream& operator<<(std::ostream& os, XmlRpc::XmlRpcValue& v);
+std::ostream& operator<<(std::ostream& os, const XmlRpc::XmlRpcValue& v);
 
 
 #endif // _XMLRPCVALUE_H_
diff --git a/utilities/xmlrpcpp/src/XmlRpcValue.cpp b/utilities/xmlrpcpp/src/XmlRpcValue.cpp
@@ -653,10 +653,10 @@ namespace XmlRpc {
 
 
 // ostream
-std::ostream& operator<<(std::ostream& os, XmlRpc::XmlRpcValue& v) 
-{ 
+std::ostream& operator<<(std::ostream& os, const XmlRpc::XmlRpcValue& v)
+{
   // If you want to output in xml format:
-  //return os << v.toXml(); 
+  //return os << v.toXml();
   return v.write(os);
 }