lcio/src/cpp/src/IMPL

diff -u -r1.23 -r1.24
--- LCEventImpl.cc	8 Nov 2007 19:35:37 -0000	1.23
+++ LCEventImpl.cc	23 Nov 2007 15:55:34 -0000	1.24
@@ -1,11 +1,14 @@

 
 #include "IMPL/LCEventImpl.h"

-#include <iostream>

 #include "IMPL/AccessChecked.h"
 #include "IMPL/LCCollectionVec.h"
 
 #define EVT_WGT "_weight" 
 

+#include <iostream>
+#include <sstream>
+
+

 using namespace EVENT ;
 //using namespace DATA ;
 

@@ -99,9 +102,13 @@

 
   LCCollectionMap::iterator it = _colMap.find( name )  ;
 

-  if( it == _colMap.end() ) 
-    throw(DataNotAvailableException( std::string("LCEventImpl::getCollection: collection not in event:" 
-						 + name) )) ; 

+  if( it == _colMap.end() ) {
+    
+    std::stringstream ss ;
+    ss << "LCEventImpl::getCollection: collection not in event:" << name ;
+
+    throw( DataNotAvailableException( ss.str() ) ) ; 
+  }

   return  it->second ;
 
   //   if( _colMap.find( name ) == _colMap.end() )