Merge pull request #2711 from stratakis/fix_use-after-close

Fix use-after-close in writeSolution when ranging fails

Author: jajhall

CITATION.cff

@@ -6,14 +6,10 @@ authors:
   email: [email protected]
 - given-names: Ivet
   family-names: Galabova
-- given-names: Leona
-  family-names: Gottwald
-- given-names: Michael
-  family-names: Feldmeier
 title: "HiGHS"
-version: 1.2.2
+version: 1.12.0
 date-released: 2022-04-18
-url: "https://github.com/ERGO-Code/HiGHS/releases/tag/v1.2.2"
+url: "https://github.com/ERGO-Code/HiGHS/releases/tag/v1.12.0"
 preferred-citation:
   type: article
   authors:

highs/lp_data/Highs.cpp

@@ -3511,7 +3511,7 @@ HighsStatus Highs::writeSolution(const std::string& filename,
         interpretCallStatus(options_.log_options, this->getRangingInterface(),
                             return_status, "getRangingInterface");
     if (return_status == HighsStatus::kError)
-      returnFromWriteSolution(file, return_status);
+      return returnFromWriteSolution(file, return_status);
     fprintf(file, "\n# Ranging\n");
     writeRangingFile(file, model_.lp_, info_.objective_function_value, basis_,
                      solution_, ranging_, style);