add the highs status string to the exception thrown if simplex fails

noajshu · noajshu · commit 56b92ebd912e · 2026-02-25T19:06:20.000Z
diff --git a/src/simplex.cc b/src/simplex.cc
@@ -265,7 +265,8 @@ void SimplexDecoder::decode_to_errors(const std::vector<uint64_t>& detections) {
       if (model_status != HighsModelStatus::kOptimal) {
         std::cerr << "Error: Model did not reach an optimal solution. Status: "
                   << highs->modelStatusToString(model_status) << std::endl;
-        throw std::runtime_error("HighsModelStatus::kOptimal expected.");
+        throw std::runtime_error("HighsModelStatus::kOptimal expected, got " +
+                                 highs->modelStatusToString(model_status) + ".");
       }
 
       // Extract the used errors

Original file line number	Diff line number	Diff line change
`@@ -265,7 +265,8 @@ void SimplexDecoder::decode_to_errors(const std::vector<uint64_t>& detections) {`
`265`	`265`	`if (model_status != HighsModelStatus::kOptimal) {`
`266`	`266`	`std::cerr << "Error: Model did not reach an optimal solution. Status: "`
`267`	`267`	`<< highs->modelStatusToString(model_status) << std::endl;`
`268`		`- throw std::runtime_error("HighsModelStatus::kOptimal expected.");`
	`268`	`+ throw std::runtime_error("HighsModelStatus::kOptimal expected, got " +`
	`269`	`+ highs->modelStatusToString(model_status) + ".");`
`269`	`270`	`}`
`270`	`271`
`271`	`272`	`// Extract the used errors`