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-rw-r--r--src/pinyin.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/pinyin.cpp b/src/pinyin.cpp
index b91f2b3..2bfc0b8 100644
--- a/src/pinyin.cpp
+++ b/src/pinyin.cpp
@@ -1889,6 +1889,9 @@ bool pinyin_guess_predicted_candidates(pinyin_instance_t * instance,
break;
}
+ if (0 == merged_gram.get_length())
+ return false;
+
/* retrieve all items. */
BigramPhraseWithCountArray tokens = g_array_new
(FALSE, FALSE, sizeof(BigramPhraseItemWithCount));