Multi-obj: Copt #239

ampl · May 27, 2024 · 55693c2 · 55693c2
1 parent 34d867d
commit 55693c2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/solvers/copt/coptmodelapi.cc b/solvers/copt/coptmodelapi.cc
@@ -17,6 +17,9 @@ void CoptModelAPI::SetLinearObjective( int iobj, const LinearObjective& lo ) {
   if (iobj<1) {
     COPT_CCALL(COPT_SetObjSense(lp(), 
                     obj::Type::MAX==lo.obj_sense() ? COPT_MAXIMIZE : COPT_MINIMIZE) );
+    double zero_out = 0.0;
+    for (int i=NumVars(); i--; )
+      COPT_CCALL(COPT_SetColObj(lp(), 1, &i, &zero_out));
     COPT_CCALL(COPT_SetColObj(lp(), lo.num_terms(),
                            lo.vars().data(), lo.coefs().data()) );
   } else {