--- trunk/src/selection/SelectionCompiler.hpp	2009/11/25 20:02:06	1390
+++ trunk/src/selection/SelectionCompiler.hpp	2015/03/05 16:30:23	2069
@@ -35,8 +35,9 @@
  *                                                                      
  * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).             
  * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
- * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).          
- * [4]  Vardeman & Gezelter, in progress (2009).                        
+ * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).          
+ * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
+ * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
  */
 
 #ifndef SELECTION_SELECTIONCOMPILER_HPP
@@ -241,7 +242,7 @@ namespace OpenMD {
 
     std::vector<Token> ltokenPostfix;
     std::vector<Token> atokenInfix;
-    int itokenInfix;
+    std::size_t itokenInfix;
 
     //std::vector<Token> compiledTokens_;
   };