Score::TimesEquals for vlad-mira, intrusive refcount for Score, shared_ptr compile fixes for decoder progs

git-svn-id: https://ws10smt.googlecode.com/svn/trunk@331 ec762483-ff6d-05da-a07a-a48fb63a330f

1 files changed, 12 insertions, 0 deletions

diff --git a/vest/scorer.cc b/vest/scorer.cc
index 86894c32..05269a3b 100644
--- a/vest/scorer.cc
+++ b/vest/scorer.cc
@@ -28,6 +28,10 @@ using namespace std;
 
 const bool minimize_segments = true;    // if adjacent segments have equal scores, merge them
 
+void Score::TimesEquals(float scale) {
+  cerr<<"UNIMPLEMENTED except for BLEU (for MIRA): Score::TimesEquals"<<endl;abort();
+}
+
 ScoreType ScoreTypeFromString(const string& st) {
   const string sl = LowercaseString(st);
   if (sl == "ser")
@@ -159,6 +163,7 @@ class BLEUScore : public Score {
   float ComputeScore() const;
   float ComputePartialScore() const;
   void ScoreDetails(string* details) const;
+  void TimesEquals(float scale);
   void PlusEquals(const Score& delta);
   void PlusEquals(const Score& delta, const float scale);
   void PlusPartialEquals(const Score& delta, int oracle_e_cover, int oracle_f_cover, int src_len);
@@ -566,6 +571,13 @@ void BLEUScore::PlusEquals(const Score& delta) {
   hyp_len += d.hyp_len;
 }
 
+void BLEUScore::TimesEquals(float scale) {
+  correct_ngram_hit_counts *= scale;
+  hyp_ngram_counts *= scale;
+  ref_len *= scale;
+  hyp_len *= scale;
+}
+
 void BLEUScore::PlusEquals(const Score& delta, const float scale) {
   const BLEUScore& d = static_cast<const BLEUScore&>(delta);
   correct_ngram_hit_counts = correct_ngram_hit_counts + (d.correct_ngram_hit_counts * scale);