diff -r e427615afb48 -r a3484f00a5f0 test/lp_test.cc
--- a/test/lp_test.cc	Tue Jun 14 10:26:37 2005 +0000
+++ b/test/lp_test.cc	Tue Jun 14 13:55:28 2005 +0000
@@ -40,6 +40,12 @@
     LP::Col p1,p2,p3,p4,p5;
     LP::Constr c;
     
+    p1=lp.addCol();
+    p2=lp.addCol();
+    p3=lp.addCol();
+    p4=lp.addCol();
+    p5=lp.addCol();
+    
     e[p1]=2;
     e.constComp()=12;
     e[p1]+=2;
@@ -199,11 +205,15 @@
   lp.max();
   lp.solve();
 
-
+  double opt=122.0/9.0;
+  
   if (lp.primalStatus()==LpSolverBase::OPTIMAL){
-    printf("Z = %g; x1 = %g; x2 = %g\n", 
-	   lp.primalValue(), 
-	   lp.primal(x1), lp.primal(x2));
+    std::cout<< "Z = "<<lp.primalValue()
+	     << " (error = " << lp.primalValue()-opt
+	     << "); x1 = "<<lp.primal(x1)
+	     << "; x2 = "<<lp.primal(x2)
+	     <<std::endl;
+    
   }
   else{
     std::cout<<"Optimal solution not found!"<<std::endl;
@@ -211,8 +221,8 @@
 
   check(lp.primalStatus()==LpSolverBase::OPTIMAL,"Primalstatus should be OPTIMAL");
 
-  double opt=123/9;
-  check(lp.primalValue()==opt,"The optimum value is 122/9");
+  check(std::abs(lp.primalValue()-opt)<1e-3,
+	"Wrong optimal value: the right optimum is 122/9 (13.555555...)");
 
 
 }
@@ -224,9 +234,9 @@
   lpTest(lp_skel);
 
 #ifdef HAVE_GLPK
-  LpGlpk lp_glpk;
-  lpTest(lp_glpk);
-  aTest(lp_glpk);
+  LpGlpk lp_glpk1,lp_glpk2;
+  lpTest(lp_glpk1);
+  aTest(lp_glpk2);
 #endif
 
 #ifdef HAVE_CPLEX