remove MPSolver::IsLPFormat

constraint_solver/constraint_solver.h

@@ -2541,7 +2541,6 @@ class Solver {
       DecisionBuilder* const first_solution,
       LocalSearchPhaseParameters* const parameters);
 
-
   // Solution Pool.
   SolutionPool* MakeDefaultSolutionPool();
 

constraint_solver/local_search.cc

@@ -3132,5 +3132,4 @@ DecisionBuilder* Solver::MakeLocalSearchPhase(
                                   parameters->limit(),
                                   parameters->filters()));
 }
-
 }  // namespace operations_research

linear_solver/cbc_interface.cc

@@ -229,7 +229,7 @@ void CBCInterface::SetOptimizationDirection(bool maximize) {
 }
 
 void CBCInterface::WriteModel(const string& filename) {
-  if (solver_->IsLPFormat(filename)) {
+  if (HasSuffixString(filename, ".lp")) {
     osi_.writeLp(filename.c_str(), "");
   } else {
     // If filename does not end in ".gz", CBC will

linear_solver/glpk_interface.cc

@@ -244,7 +244,7 @@ void GLPKInterface::Reset() {
 }
 
 void GLPKInterface::WriteModel(const string& filename) {
-  if (solver_->IsLPFormat(filename)) {
+  if (HasSuffixString(filename, ".lp")) {
     glp_write_lp(lp_, NULL, filename.c_str());
   } else {
     glp_write_mps(lp_, GLP_MPS_DECK, NULL, filename.c_str());

linear_solver/linear_solver.h

@@ -366,11 +366,6 @@ class MPSolver {
     return write_model_filename_;
   }
 
-  // Returns true if filename ends in ".lp".
-  bool IsLPFormat(const string &filename) {
-    return HasSuffixString (filename, ".lp");
-  }
-
   void set_time_limit(int64 time_limit) {
     DCHECK_GE(time_limit, 0);
     time_limit_ = time_limit;

linear_solver/linear_solver.swig

@@ -405,7 +405,6 @@ namespace operations_research {
 %rename (clearObjective) MPSolver::ClearObjective;
 %rename (computeExactConditionNumber) MPSolver::ComputeExactConditionNumber;
 %rename (init) MPSolver::Init;
-%rename (isLpFormat) MPSolver::IsLPFormat;
 %rename (loadModel) MPSolver::LoadModel;
 %rename (makeBoolVar) MPSolver::MakeBoolVar;
 %rename (makeIntVar) MPSolver::MakeIntVar;