Changeset 2513:26983135fd6d in lemon-0.x

Timestamp:

11/14/07 18:53:08 (16 years ago)

Author:

Balazs Dezso

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@3378

Message:

Query the result value of an expression

File:

• lemon/lp_base.h (modified) (1 diff)

lemon/lp_base.h

@@ -1370 +1370 @@
     ///\e
     Value primal(Col c) const { return _getPrimal(_lpId(c)); }
+    ///\e
+    Value primal(const Expr& e) const {
+      double res = e.constComp();
+      for (std::map<Col, double>::const_iterator it = e.begin();
+           it != e.end(); ++it) {
+        res += _getPrimal(_lpId(it->first)) * it->second;
+      }
+      return res; 
+    }
 
     ///\e
     Value dual(Row r) const { return _getDual(_lpId(r)); }
+    ///\e
+    Value dual(const DualExpr& e) const {
+      double res = 0.0;
+      for (std::map<Row, double>::const_iterator it = e.begin();
+           it != e.end(); ++it) {
+        res += _getPrimal(_lpId(it->first)) * it->second;
+      }
+      return res; 
+    }
 
     ///\e