--- branches/development/src/nonbonded/SwitchingFunction.cpp	2011/11/22 20:38:56	1665
+++ trunk/src/nonbonded/SwitchingFunction.cpp	2013/07/01 21:09:37	1895
@@ -35,7 +35,7 @@
  *                                                                      
  * [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).          
+ * [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).
  */
@@ -159,9 +159,7 @@ namespace OpenMD {
       } else {
         in_switching_region = true;
         r = sqrt(r2);
-        pair<RealType, RealType> result = switchSpline_->getValueAndDerivativeAt(r);
-        sw = result.first;
-        dswdr = result.second;
+        switchSpline_->getValueAndDerivativeAt(r, sw, dswdr);
       }
     }
     return in_switching_region;