diff -r 1c978b5bcc65 -r 05b34170866b lemon/math.h
--- a/lemon/math.h	Mon Mar 18 17:41:19 2013 +0100
+++ b/lemon/math.h	Mon Mar 18 18:48:58 2013 +0100
@@ -65,8 +65,13 @@
       return v!=v;
     }
 
+  ///Round a value to its closest integer
+  inline double round(double r) {
+    return (r > 0.0) ? floor(r + 0.5) : ceil(r - 0.5);
+  }
+
   /// @}
 
 } //namespace lemon
 
-#endif //LEMON_TOLERANCE_H
+#endif //LEMON_MATH_H