Make character data const ref.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/saxparser.cc b/src/saxparser.cc
index 065a9d8..d261b72 100644
--- a/src/saxparser.cc
+++ b/src/saxparser.cc
@@ -193,7 +193,7 @@ void SAXParser::startTag(std::string, attributes_t &)
 {
 }
 
-void SAXParser::characterData(std::string &)
+void SAXParser::characterData(const std::string &)
 {
 }
 
diff --git a/src/saxparser.h b/src/saxparser.h
index c303d41..b027b30 100644
--- a/src/saxparser.h
+++ b/src/saxparser.h
@@ -67,7 +67,7 @@ public:
    * In that cae it might be nessecary to buffer to received bytes.
    * @param data A std::string containing the character data.
    */
-  virtual void characterData(std::string &data);
+  virtual void characterData(const std::string &data);
 
   /**
    * Start tag callback mehtod.