misc sync code

ortools/gscip/gscip.cc

@@ -738,6 +738,13 @@ absl::Status GScip::SetLinearConstraintCoef(SCIP_CONS* constraint,
   return absl::OkStatus();
 }
 
+absl::Status GScip::AddLinearConstraintCoef(SCIP_CONS* const constraint,
+                                            SCIP_VAR* const var,
+                                            const double value) {
+  RETURN_IF_SCIP_ERROR(SCIPaddCoefLinear(scip_, constraint, var, value));
+  return absl::OkStatus();
+}
+
 absl::StatusOr<GScipHintResult> GScip::SuggestHint(
     const GScipSolution& partial_solution) {
   SCIP_SOL* solution;

ortools/gscip/gscip.h

@@ -233,6 +233,8 @@ class GScip {
   absl::Status SetLinearConstraintUb(SCIP_CONS* constraint, double ub);
   absl::Status SetLinearConstraintCoef(SCIP_CONS* constraint, SCIP_VAR* var,
                                        double value);
+  absl::Status AddLinearConstraintCoef(SCIP_CONS* constraint, SCIP_VAR* var,
+                                       double value);
 
   // Works on all constraint types. Unlike DeleteVariable, no special action is
   // required before deleting a constraint.

ortools/gurobi/environment.cc

@@ -43,7 +43,6 @@ bool GurobiIsCorrectlyInstalled() {
 // See the comment at the top of the script.
 
 // This is the 'define' section.
-
 std::function<int(GRBenv**, const char*, const char*, const char*, int,
                   const char*)>
     GRBisqp = nullptr;

ortools/lp_data/mps_reader.cc

@@ -20,6 +20,7 @@
 #include "absl/status/statusor.h"
 #include "absl/strings/match.h"
 #include "absl/strings/str_split.h"
+#include "ortools/base/protobuf_util.h"
 #include "ortools/base/status_builder.h"
 #include "ortools/lp_data/lp_types.h"
 

ortools/lp_data/mps_reader.h

@@ -31,7 +31,6 @@
 
 #include "absl/container/flat_hash_map.h"
 #include "absl/container/flat_hash_set.h"
-#include "absl/container/node_hash_set.h"
 #include "absl/flags/declare.h"
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"