--- trunk/src/utils/NumericConstant.hpp	2009/11/25 20:02:06	1390
+++ trunk/src/utils/NumericConstant.hpp	2015/03/09 17:10:26	2077
@@ -35,22 +35,24 @@
  *                                                                      
  * [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).
  */
  
 /**
  * @file NumericConstant.hpp
  * @author teng lin
  * @date 11/17/2004
- * @time 23:33am
  * @version 1.0
  */ 
 
 #ifndef UTILS_NUMERICCONSTANT_HPP
 #define UTILS_NUMERICCONSTANT_HPP
+#include "config.h"
 #include <cmath>
 #include <limits>
+
 namespace OpenMD {
 
   /**
@@ -62,6 +64,7 @@ namespace OpenMD {
     static const RealType epsilon = std::numeric_limits<RealType>::epsilon();
     static const RealType PI = M_PI;
     static const RealType TWO_PI = 2.0 * PI;
+    static const RealType infinity = std::numeric_limits<RealType>::infinity();
   }