From 91ff58f80ebbdbec46800a0b4f488dfb9a4a3b58 Mon Sep 17 00:00:00 2001
From: fwesselm <fwesselm@mathworks.com>
Date: Fri, 28 Aug 2026 21:52:33 +0200
Subject: [PATCH] Fix compiler warnings

---
 highs/ipm/IpxWrapper.cpp             | 1 -
 highs/lp_data/HighsIis.cpp           | 2 +-
 highs/presolve/HighsPostsolveStack.h | 6 ++++++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/highs/ipm/IpxWrapper.cpp b/highs/ipm/IpxWrapper.cpp
index ab0c861353b..4007285e3e4 100644
--- a/highs/ipm/IpxWrapper.cpp
+++ b/highs/ipm/IpxWrapper.cpp
@@ -1470,5 +1470,4 @@ HighsStatus reportHipoCrossoverStatus(const HighsOptions& options,
                  "Hipo: Crossover unrecognised status\n");
     return HighsStatus::kError;
   }
-  return HighsStatus::kError;
 }
diff --git a/highs/lp_data/HighsIis.cpp b/highs/lp_data/HighsIis.cpp
index 2e4fb23d186..03a6f6d53cc 100644
--- a/highs/lp_data/HighsIis.cpp
+++ b/highs/lp_data/HighsIis.cpp
@@ -272,7 +272,7 @@ bool HighsIis::rowValueBounds(const HighsLp& lp, const HighsOptions& options) {
     }
   }
   bool below_lower = false;
-  bool above_upper;
+  bool above_upper = false;
   for (HighsInt iRow = 0; iRow < lp.num_row_; iRow++) {
     below_lower = upper_value[iRow] <
                   lp.row_lower_[iRow] - options.primal_feasibility_tolerance;
diff --git a/highs/presolve/HighsPostsolveStack.h b/highs/presolve/HighsPostsolveStack.h
index d1c761c51e8..45311acdd69 100644
--- a/highs/presolve/HighsPostsolveStack.h
+++ b/highs/presolve/HighsPostsolveStack.h
@@ -339,6 +339,12 @@ class HighsPostsolveStack {
       case ReductionType::kSlackColSubstitution: {
         return "Slack col substitution";
       }
+      case ReductionType::kImpliedEquation: {
+        return "Implied equation";
+      }
+      case ReductionType::kZeroObjSingletonContinuousCol: {
+        return "Zero obj singleton continuous col";
+      }
       default:
         return "Unknown";
     }