Cleaned rest of relwriter

libcorpus2_whole/io/relwriter.cpp

@@ -46,24 +46,21 @@ void RelationWriter::write(const std::vector< boost::shared_ptr<Relation> >& rel
 		ofs<<"   <rel name=\"";
 		ofs<<r->name().c_str()<<"\">"<<endl;
 		ofs<<"      <from sent=\"";
-		ofs<<r->from()->sentence_id().c_str();
+		ofs<<r->from()->sentence_id();
 		ofs<<"\" chan=\"";
-		ofs<<r->from()->channel_name().c_str();
+		ofs<<r->from()->channel_name();
 		ofs<<"\">";
 		ofs<<r->from()->annotation_number();
 		ofs<<"</from>"<<endl;
 		ofs<<"      <to sent=\"";
-                ofs<<r->to()->sentence_id().c_str();
+		ofs<<r->to()->sentence_id();
 		ofs<<"\" chan=\"";
-                ofs<<r->to()->channel_name().c_str();
+		ofs<<r->to()->channel_name();
 		ofs<<"\">";
 		ofs<<r->to()->annotation_number();
 		ofs<<"</to>"<<endl;
 		ofs<<"   </rel>"<<endl;
 	}
-	
-	
-	
         //footer
 	ofs<<"</relations>";
 	ofs.close();