Changeset 2361:f2ef1aa8189a in lemon-0.x for lemon/lp_cplex.cc

Timestamp:

02/14/07 14:50:25 (17 years ago)

Author:

athos

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@3167

Message:

Implemented virtual functions of class LpCplex?.

File:

• lemon/lp_cplex.cc (modified) (5 diffs)

lemon/lp_cplex.cc

@@ -148 +148 @@
   }
 
+  LpCplex::Value LpCplex::_getCoeff(int row, int col) 
+  {
+    LpCplex::Value value;
+    CPXgetcoef(env, lp, row, col, &value);
+    return value;
+  }
+
   void LpCplex::_setColLowerBound(int i, Value value)
   {
@@ -159 +166 @@
  
   }
+
+  LpCplex::Value LpCplex::_getColLowerBound(int i)
+  {
+    LpCplex::Value x;
+    CPXgetlb (env, lp, &x, i, i);
+    return x;
+  }
   
   void LpCplex::_setColUpperBound(int i, Value value)
@@ -169 +183 @@
     bd[0]=value;
     status = CPXchgbds(env, lp, 1, indices, lu, bd);
+  }
+
+  LpCplex::Value LpCplex::_getColUpperBound(int i)
+  {
+    LpCplex::Value x;
+    CPXgetub (env, lp, &x, i, i);
+    return x;
   }
 
@@ -243 +264 @@
 //   }
   
+  void LpCplex::_getRowBounds(int i, Value &lb, Value &ub)
+  {
+    char sense;
+    CPXgetsense(env, lp, &sense,i,i);
+    lb=-INF;
+    ub=INF;
+    switch (sense)
+      {
+      case 'L':
+        CPXgetcoef(env, lp, i, -1, &ub);
+        break;
+      case 'G':
+        CPXgetcoef(env, lp, i, -1, &lb);
+        break;
+      case 'E':
+        CPXgetcoef(env, lp, i, -1, &lb);
+        ub=lb;
+        break;
+      case 'R':
+        CPXgetcoef(env, lp, i, -1, &lb);
+        Value x;
+        CPXgetcoef(env, lp, i, -2, &x);
+        ub=lb+x;
+        break;
+      }
+  }
+
   void LpCplex::_setObjCoeff(int i, Value obj_coef)
   {
     CPXchgcoef(env, lp, -1, i, obj_coef);
+  }
+
+  LpCplex::Value LpCplex::_getObjCoeff(int i)
+  {
+    Value x;
+    CPXgetcoef(env, lp, -1, i, &x);
+    return x;
   }
 
@@ -565 +620 @@
     CPXchgobjsen(env, lp, CPX_MIN);
    }
+
+  bool LpCplex::_isMax()
+  {
+    if (CPXgetobjsen(env, lp)==CPX_MAX)
+      return true;
+    else
+      return false;
+  }
   
 } //namespace lemon