TargetNgramState debugging

2 files changed, 5 insertions, 2 deletions

diff --git a/moses/FF/TargetNgramFeature.cpp b/moses/FF/TargetNgramFeature.cpp
index b74af4694..744c6604a 100644
--- a/moses/FF/TargetNgramFeature.cpp
+++ b/moses/FF/TargetNgramFeature.cpp
@@ -42,6 +42,7 @@ size_t TargetNgramState::hash() const
   std::size_t ret = boost::hash_range(m_words.begin(), m_words.end());
   return ret;
 }
+
 bool TargetNgramState::operator==(const FFState& other) const
 {
   const TargetNgramState& rhs = dynamic_cast<const TargetNgramState&>(other);
@@ -207,7 +208,7 @@ FFState* TargetNgramFeature::EvaluateWhenApplied(const Hypothesis& cur_hypo,
         accumulator->PlusEquals(this, last_ngram.str(), 1);
       }
     }
-    return NULL;
+    return new TargetNgramState();
   }
 
   // prepare new state
diff --git a/moses/FF/TargetNgramFeature.h b/moses/FF/TargetNgramFeature.h
index 86e3b5d66..dd6c9a45f 100644
--- a/moses/FF/TargetNgramFeature.h
+++ b/moses/FF/TargetNgramFeature.h
@@ -19,7 +19,9 @@ namespace Moses
 class TargetNgramState : public FFState
 {
 public:
-  TargetNgramState(std::vector<Word> &words): m_words(words) {}
+  TargetNgramState() {}
+
+  TargetNgramState(const std::vector<Word> &words): m_words(words) {}
   const std::vector<Word> GetWords() const {
     return m_words;
   }