Fixed formatting issue and fixed HighsInt/int build issue.

Author: mathgeekcoder

highs/interfaces/highs_c_api.cpp

@@ -1493,7 +1493,7 @@ const void* Highs_getCallbackDataOutItem(const HighsCallbackDataOut* data_out,
   return nullptr;
 }
 
-int Highs_setCallbackSolution(HighsCallbackDataIn* data_in,
+HighsInt Highs_setCallbackSolution(HighsCallbackDataIn* data_in,
                               HighsInt num_entries, const double* value) {
   if (data_in != nullptr && data_in->cbdata != nullptr) {
     HighsCallbackInput* obj = static_cast<HighsCallbackInput*>(data_in->cbdata);
@@ -1502,7 +1502,7 @@ int Highs_setCallbackSolution(HighsCallbackDataIn* data_in,
     return static_cast<int>(HighsStatus::kError);
 }
 
-int Highs_setCallbackSparseSolution(HighsCallbackDataIn* data_in,
+HighsInt Highs_setCallbackSparseSolution(HighsCallbackDataIn* data_in,
                                      HighsInt num_entries,
                                      const HighsInt* index,
                                      const double* value) {
@@ -1513,7 +1513,7 @@ int Highs_setCallbackSparseSolution(HighsCallbackDataIn* data_in,
     return static_cast<int>(HighsStatus::kError);
 }
 
-int Highs_repairCallbackSolution(HighsCallbackDataIn* data_in) {
+HighsInt Highs_repairCallbackSolution(HighsCallbackDataIn* data_in) {
   if (data_in != nullptr && data_in->cbdata != nullptr) {
     HighsCallbackInput* obj = static_cast<HighsCallbackInput*>(data_in->cbdata);
     return static_cast<int>(obj->repairSolution());

highs/lp_data/HighsCallback.h

@@ -81,7 +81,7 @@ using HighsCallbackFunctionType =
                        HighsCallbackInput*, void*)>;
 
 struct HighsCallback {
-  HighsCallback(Highs* highs) : highs(highs) { 
+  HighsCallback(Highs* highs) : highs(highs) {
     data_out.highs = highs;
     data_in.highs = highs;
     clear();