fix wrong declaration of highsCompilationDate(), some compiler warnings, and a comment header

src/Highs.h

@@ -37,6 +37,7 @@ HighsInt highsVersionMajor();
 HighsInt highsVersionMinor();
 HighsInt highsVersionPatch();
 const char* highsGithash();
+const char* highsCompilationDate();
 
 /**
  * @brief Class to set parameters and run HiGHS
@@ -1216,7 +1217,6 @@ class Highs {
    * @brief Return compilation date
    */
   std::string compilationDate() const { return "deprecated"; }
-  const char* highsCompilationDate();
 
   HighsStatus setLogCallback(void (*user_log_callback)(HighsLogType,
                                                        const char*, void*),

src/lp_data/Highs.cpp

@@ -2320,12 +2320,12 @@ HighsStatus Highs::changeColsIntegrality(const HighsInt from_col,
   return returnFromHighs(return_status);
 }
 
-HighsStatus analyseSetCreateError(HighsLogOptions log_options,
-                                  const std::string method,
-                                  const HighsInt create_error,
-                                  const bool ordered,
-                                  const HighsInt num_set_entries,
-                                  const HighsInt dimension) {
+static HighsStatus analyseSetCreateError(HighsLogOptions log_options,
+                                         const std::string method,
+                                         const HighsInt create_error,
+                                         const bool ordered,
+                                         const HighsInt num_set_entries,
+                                         const HighsInt dimension) {
   if (create_error == kIndexCollectionCreateIllegalSetSize) {
     highsLogUser(log_options, HighsLogType::kError,
                  "Set supplied to Highs::%s has illegal size of %d\n",

src/lp_data/HighsCallbackStruct.h

@@ -1,3 +1,4 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 /*                                                                       */
 /*    This file is part of the HiGHS linear optimization suite           */
 /*                                                                       */

src/qpsolver/a_quass.cpp

@@ -4,7 +4,7 @@
 #include "qpsolver/feasibility_highs.hpp"
 #include "qpsolver/feasibility_bounded.hpp"
 
-QpAsmStatus quass2highs(Instance& instance, 
+static QpAsmStatus quass2highs(Instance& instance,
 			Settings& settings,
 			Statistics& stats,
 			QpModelStatus& qp_model_status,

src/qpsolver/feasibility_bounded.hpp

@@ -18,8 +18,8 @@ static void computeStartingPointBounded(Instance& instance,
   L.resize(instance.num_var * instance.num_var);
 
   // compute cholesky factorization of Q
-  for (size_t col = 0; col < instance.num_var; col++) {
-    for (size_t idx = instance.Q.mat.start[col]; idx < instance.Q.mat.start[col+1]; idx++) {
+  for (size_t col = 0; col < (size_t)instance.num_var; col++) {
+    for (size_t idx = instance.Q.mat.start[col]; idx < (size_t)instance.Q.mat.start[col+1]; idx++) {
       double sum = 0;
       size_t row = instance.Q.mat.index[idx]; 
       if (row == col) {

src/qpsolver/quass.cpp

@@ -266,12 +266,12 @@ static double compute_dual_violation(Instance& instance, QpVector& primal, QpVec
 }
 #endif
 
-bool check_reinvert_due(Basis& basis) {
+static bool check_reinvert_due(Basis& basis) {
   // reinvert can be triggered by basis
   return basis.getreinversionhint();
 }
 
-void reinvert(Basis& basis, CholeskyFactor& factor, Gradient& grad, ReducedCosts& rc, ReducedGradient& rg, std::unique_ptr<Pricing>& pricing) {
+static void reinvert(Basis& basis, CholeskyFactor& factor, Gradient& grad, ReducedCosts& rc, ReducedGradient& rg, std::unique_ptr<Pricing>& pricing) {
   basis.rebuild();
   factor.recompute();
   grad.recompute();

src/qpsolver/runtime.hpp

@@ -26,13 +26,13 @@ struct Runtime {
 
   Runtime(Instance& inst, Statistics& stats)
       : instance(inst),
+        statistics(stats),
         primal(QpVector(instance.num_var)),
         rowactivity(QpVector(instance.num_con)),
         dualvar(instance.num_var),
         dualcon(instance.num_con),
         status_var(instance.num_var),
-        status_con(instance.num_con),
-        statistics(stats) {}
+        status_con(instance.num_con) {}
 };
 
 #endif