Fixed reference + do not clear stream in adapters.

src/charsetConverter.cpp

@@ -158,6 +158,8 @@ void charsetConverter::convert(utility::inputStream& in, utility::outputStream&
 
 void charsetConverter::convert(const string& in, string& out)
 {
+	out.clear();
+
 	utility::inputStreamStringAdapter is(in);
 	utility::outputStreamStringAdapter os(out);
 

src/utility/stream.cpp

@@ -112,7 +112,6 @@ void outputStreamAdapter::flush()
 outputStreamStringAdapter::outputStreamStringAdapter(string& buffer)
 	: m_buffer(buffer)
 {
-	m_buffer.clear();
 }
 
 
@@ -134,7 +133,6 @@ void outputStreamStringAdapter::flush()
 outputStreamByteArrayAdapter::outputStreamByteArrayAdapter(byteArray& array)
 	: m_array(array)
 {
-	m_array.clear();
 }
 
 

vmime/utility/stream.hpp

@@ -252,7 +252,7 @@ public:
 
 private:
 
-	byteArray m_array;
+	byteArray& m_array;
 };