3 files changed, 14 insertions, 11 deletions
diff --git a/training/utils/candidate_set.cc b/training/utils/candidate_set.cc
index 087efec3..1dec9609 100644
--- a/training/utils/candidate_set.cc
+++ b/training/utils/candidate_set.cc
@@ -1,6 +1,11 @@
 #include "candidate_set.h"
 
-#include <tr1/unordered_set>
+#ifdef HAVE_CXX11
+# include <unordered_set>
+#else
+# include <tr1/unordered_set>
+namespace std { using std::tr1::unordered_set; }
+#endif
 
 #include <boost/functional/hash.hpp>
 
@@ -139,12 +144,12 @@ void CandidateSet::ReadFromFile(const string& file) {
 
 void CandidateSet::Dedup() {
   if(!SILENT) cerr << "Dedup in=" << cs.size();
-  tr1::unordered_set<Candidate, CandidateHasher, CandidateCompare> u;
+  unordered_set<Candidate, CandidateHasher, CandidateCompare> u;
   while(cs.size() > 0) {
     u.insert(cs.back());
     cs.pop_back();
   }
-  tr1::unordered_set<Candidate, CandidateHasher, CandidateCompare>::iterator it = u.begin();
+  unordered_set<Candidate, CandidateHasher, CandidateCompare>::iterator it = u.begin();
   while (it != u.end()) {
     cs.push_back(*it);
     it = u.erase(it);
diff --git a/training/utils/online_optimizer.h b/training/utils/online_optimizer.h
index 28d89344..19223e9d 100644
--- a/training/utils/online_optimizer.h
+++ b/training/utils/online_optimizer.h
@@ -1,10 +1,10 @@
 #ifndef _ONL_OPTIMIZE_H_
 #define _ONL_OPTIMIZE_H_
 
-#include <tr1/memory>
 #include <set>
 #include <string>
 #include <cmath>
+#include <boost/shared_ptr.hpp>
 #include "sparse_vector.h"
 
 struct LearningRateSchedule {
@@ -56,7 +56,7 @@ struct ExponentialDecayLearningRate : public LearningRateSchedule {
 class OnlineOptimizer {
  public:
   virtual ~OnlineOptimizer();
-  OnlineOptimizer(const std::tr1::shared_ptr<LearningRateSchedule>& s,
+  OnlineOptimizer(const boost::shared_ptr<LearningRateSchedule>& s,
                   size_t batch_size,
                   const std::vector<int>& frozen_feats = std::vector<int>())
       : N_(batch_size),schedule_(s),k_() {
@@ -77,13 +77,13 @@ class OnlineOptimizer {
   std::set<int> frozen_;  // frozen (non-optimizing) features
 
  private:
-  std::tr1::shared_ptr<LearningRateSchedule> schedule_;
+  boost::shared_ptr<LearningRateSchedule> schedule_;
   int k_;  // iteration count
 };
 
 class CumulativeL1OnlineOptimizer : public OnlineOptimizer {
  public:
-  CumulativeL1OnlineOptimizer(const std::tr1::shared_ptr<LearningRateSchedule>& s,
+  CumulativeL1OnlineOptimizer(const boost::shared_ptr<LearningRateSchedule>& s,
                               size_t training_instances, double C,
                               const std::vector<int>& frozen) :
     OnlineOptimizer(s, training_instances, frozen), C_(C), u_() {}
diff --git a/training/utils/optimize_test.cc b/training/utils/optimize_test.cc
index bff2ca03..72fcef6d 100644
--- a/training/utils/optimize_test.cc
+++ b/training/utils/optimize_test.cc
@@ -2,6 +2,7 @@
 #include <iostream>
 #include <sstream>
 #include <boost/program_options/variables_map.hpp>
+#include <boost/shared_ptr.hpp>
 #include "optimize.h"
 #include "online_optimizer.h"
 #include "sparse_vector.h"
@@ -96,14 +97,11 @@ void TestOptimizerVariants(int num_vars) {
   cerr << oa.Name() << " SUCCESS\n";
 }
 
-using namespace std::tr1;
-
 void TestOnline() {
   size_t N = 20;
   double C = 1.0;
   double eta0 = 0.2;
-  std::tr1::shared_ptr<LearningRateSchedule> r(new ExponentialDecayLearningRate(N, eta0, 0.85));
-  //shared_ptr<LearningRateSchedule> r(new StandardLearningRate(N, eta0));
+  boost::shared_ptr<LearningRateSchedule> r(new ExponentialDecayLearningRate(N, eta0, 0.85));
   CumulativeL1OnlineOptimizer opt(r, N, C, std::vector<int>());
   assert(r->eta(10) < r->eta(1));
 }