[Lemon-commits] [lemon_svn] alpar: r1707 - hugo/trunk/src/work/athos/lp

[Lemon SVN]

Author: alpar
Date: Wed Mar 30 15:01:58 2005
New Revision: 1707

Modified:
   hugo/trunk/src/work/athos/lp/lp_base.h

Log:
Minor improvements

Modified: hugo/trunk/src/work/athos/lp/lp_base.h
==============================================================================
--- hugo/trunk/src/work/athos/lp/lp_base.h	(original)
+++ hugo/trunk/src/work/athos/lp/lp_base.h	Wed Mar 30 15:01:58 2005
@@ -298,6 +298,10 @@
       Value &upperBound() { return _ub; }
       ///\e
       const Value &upperBound() const { return _ub; }
+      ///\e
+      bool lowerBounded() const { return std::isfinite(_lb); }
+      ///\e
+      bool upperBounded() const { return std::isfinite(_ub); }
     };
     
 
@@ -484,9 +488,9 @@
     ///\param c is a linear expression (see \ref Constr)
     void setRow(Row r, const Constr &c) {
       setRow(r,
-	     isnan(c.lowerBound())?-INF:c.lowerBound(),
+	     c.lowerBounded()?c.lowerBound():-INF,
 	     c.expr(),
-	     isnan(c.upperBound())?INF:c.upperBound());
+	     c.upperBounded()?c.upperBound():INF);
     }
 
     ///Add a new row (i.e a new constaint) to the LP