MP2NL: fix GetVarName() when none available #237

ampl · Dec 9, 2024 · 40f3b18 · 40f3b18
1 parent f1fb70c
commit 40f3b18
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/solvers/mp2nl/mp2nlmodelapi.h b/solvers/mp2nl/mp2nlmodelapi.h
@@ -1541,7 +1541,8 @@ class MP2NLModelAPI
   const char* GetVarName(int v) const {
     assert(v>=0 && v<(int)var_lbs_.size());
     return
-        (int)var_names_.size() > v ? var_names_[v] : nullptr;
+        (int)var_names_.size() > v && var_names_[v]
+               ? var_names_[v] : "";
   }
 
   /// Feed extended linear part