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-rw-r--r--training/dtrain/score.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/training/dtrain/score.h b/training/dtrain/score.h
index 53e970ba..2a49e52d 100644
--- a/training/dtrain/score.h
+++ b/training/dtrain/score.h
@@ -138,7 +138,7 @@ make_ngram_counts(const vector<WordID>& hyp, const vector<WordID>& ref, const un
struct BleuScorer : public LocalScorer
{
score_t Bleu(NgramCounts& counts, const unsigned hyp_len, const unsigned ref_len);
- score_t Score(vector<WordID>& hyp, vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
+ score_t Score(const vector<WordID>& hyp, const vector<WordID>& ref, const unsigned /*rank*/, const unsigned /*src_len*/);
void Reset() {}
};