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-rw-r--r--decoder/lattice.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/decoder/lattice.cc b/decoder/lattice.cc
index e3631e59..89da3cd0 100644
--- a/decoder/lattice.cc
+++ b/decoder/lattice.cc
@@ -46,6 +46,7 @@ void LatticeTools::ConvertTextToLattice(const string& text, Lattice* pl) {
Lattice& l = *pl;
vector<WordID> ids;
TD::ConvertSentence(text, &ids);
+ l.clear();
l.resize(ids.size());
for (int i = 0; i < l.size(); ++i)
l[i].push_back(LatticeArc(ids[i], 0.0, 1));