cpp: replace ABSL_ATTRIBUTE_UNUSED by [[maybe_unused]]

Author: Mizux

ortools/linear_solver/bop_interface.cc

@@ -383,7 +383,7 @@ void BopInterface::NonIncrementalChange() {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterBop ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterBop [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new BopInterface(solver); },
       MPSolver::BOP_INTEGER_PROGRAMMING);

ortools/linear_solver/cbc_interface.cc

@@ -528,7 +528,7 @@ void CBCInterface::SetLpAlgorithm(int value) {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterCBC ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterCBC [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new CBCInterface(solver); },
       MPSolver::CBC_MIXED_INTEGER_PROGRAMMING);

ortools/linear_solver/clp_interface.cc

@@ -618,7 +618,7 @@ void CLPInterface::SetLpAlgorithm(int value) {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterCLP ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterCLP [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new CLPInterface(solver); },
       MPSolver::CLP_LINEAR_PROGRAMMING);

ortools/linear_solver/glop_interface.cc

@@ -436,7 +436,7 @@ void GLOPInterface::NonIncrementalChange() {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterGlop ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterGlop [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new GLOPInterface(solver); },
       MPSolver::GLOP_LINEAR_PROGRAMMING);

ortools/linear_solver/glpk_interface.cc

@@ -958,15 +958,15 @@ void GLPKInterface::SetLpAlgorithm(int value) {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterGLPKLP ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterGLPKLP [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* solver) { return new GLPKInterface(solver, false); },
       MPSolver::GLPK_LINEAR_PROGRAMMING);
   return nullptr;
 }();
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterGLPKMIP ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterGLPKMIP [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* solver) { return new GLPKInterface(solver, true); },
       MPSolver::GLPK_MIXED_INTEGER_PROGRAMMING);

ortools/linear_solver/gurobi_interface.cc

@@ -1415,7 +1415,7 @@ void GurobiInterface::SetCallback(MPCallback* mp_callback) {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterGurobiLp ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterGurobiLp [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* solver) { return new GurobiInterface(solver, false); },
       MPSolver::GUROBI_LINEAR_PROGRAMMING,
@@ -1424,7 +1424,7 @@ const void* const kRegisterGurobiLp ABSL_ATTRIBUTE_UNUSED = [] {
 }();
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterGurobiMip ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterGurobiMip [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* solver) { return new GurobiInterface(solver, true); },
       MPSolver::GUROBI_MIXED_INTEGER_PROGRAMMING,

ortools/linear_solver/highs_interface.cc

@@ -282,15 +282,15 @@ void HighsInterface::NonIncrementalChange() {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterHighsLp ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterHighsLp [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* solver) { return new HighsInterface(solver, false); },
       MPSolver::HIGHS_LINEAR_PROGRAMMING);
   return nullptr;
 }();
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterHighsMip ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterHighsMip [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* solver) { return new HighsInterface(solver, true); },
       MPSolver::HIGHS_MIXED_INTEGER_PROGRAMMING);

ortools/linear_solver/pdlp_interface.cc

@@ -309,7 +309,7 @@ void PdlpInterface::NonIncrementalChange() {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterPdlp ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterPdlp [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new PdlpInterface(solver); },
       MPSolver::PDLP_LINEAR_PROGRAMMING);

ortools/linear_solver/sat_interface.cc

@@ -299,7 +299,7 @@ void SatInterface::NonIncrementalChange() {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterSat ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterSat [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new SatInterface(solver); },
       MPSolver::SAT_INTEGER_PROGRAMMING);

ortools/linear_solver/scip_interface.cc

@@ -1187,7 +1187,7 @@ void SCIPInterface::SetCallback(MPCallback* mp_callback) {
 namespace {
 
 // See MpSolverInterfaceFactoryRepository for details.
-const void* const kRegisterSCIP ABSL_ATTRIBUTE_UNUSED = [] {
+const void* const kRegisterSCIP [[maybe_unused]] = [] {
   MPSolverInterfaceFactoryRepository::GetInstance()->Register(
       [](MPSolver* const solver) { return new SCIPInterface(solver); },
       MPSolver::SCIP_MIXED_INTEGER_PROGRAMMING);