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-rw-r--r--dtrain/score.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/dtrain/score.cc b/dtrain/score.cc
index 71d3e5de..7b1f6be4 100644
--- a/dtrain/score.cc
+++ b/dtrain/score.cc
@@ -103,7 +103,7 @@ SmoothBleuScorer::Score(vector<WordID>& hyp, vector<WordID>& ref,
i_bleu[j] += (1/((score_t)j+1)) * i_ng;
}
}
- sum += exp(i_bleu[i])/(pow(2, N_-i));
+ sum += exp(i_bleu[i])/(pow(2.0, static_cast<double>(N_-i)));
}
return brevity_penalty(hyp_len, ref_len) * sum;
}