From 99b198605a20e44e2eeb3744ada325dc0f9929f4 Mon Sep 17 00:00:00 2001
From: LittlePrince92 <wxliny@gmail.com>
Date: Tue, 24 Jul 2018 12:14:39 +0800
Subject: [PATCH] add check of input  to avoid coredump

add check of input  to avoid coredump
---
 include/cppjieba/Jieba.hpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/cppjieba/Jieba.hpp b/include/cppjieba/Jieba.hpp
index abd321d4..d26af1a5 100644
--- a/include/cppjieba/Jieba.hpp
+++ b/include/cppjieba/Jieba.hpp
@@ -32,37 +32,48 @@ class Jieba {
   }; // struct LocWord
 
   void Cut(const string& sentence, vector<string>& words, bool hmm = true) const {
+    if(sentence.empty()) return;
     mix_seg_.Cut(sentence, words, hmm);
   }
   void Cut(const string& sentence, vector<Word>& words, bool hmm = true) const {
+    if(sentence.empty()) return;
     mix_seg_.Cut(sentence, words, hmm);
   }
   void CutAll(const string& sentence, vector<string>& words) const {
+    if(sentence.empty()) return;
     full_seg_.Cut(sentence, words);
   }
   void CutAll(const string& sentence, vector<Word>& words) const {
+    if(sentence.empty()) return;
     full_seg_.Cut(sentence, words);
   }
   void CutForSearch(const string& sentence, vector<string>& words, bool hmm = true) const {
+    if(sentence.empty()) return;
     query_seg_.Cut(sentence, words, hmm);
   }
   void CutForSearch(const string& sentence, vector<Word>& words, bool hmm = true) const {
+    if(sentence.empty()) return;
     query_seg_.Cut(sentence, words, hmm);
   }
   void CutHMM(const string& sentence, vector<string>& words) const {
+    if(sentence.empty()) return;
     hmm_seg_.Cut(sentence, words);
   }
   void CutHMM(const string& sentence, vector<Word>& words) const {
+    if(sentence.empty()) return;
     hmm_seg_.Cut(sentence, words);
   }
   void CutSmall(const string& sentence, vector<string>& words, size_t max_word_len) const {
+    if(sentence.empty()) return;
     mp_seg_.Cut(sentence, words, max_word_len);
   }
   void CutSmall(const string& sentence, vector<Word>& words, size_t max_word_len) const {
+    if(sentence.empty()) return;
     mp_seg_.Cut(sentence, words, max_word_len);
   }
   
   void Tag(const string& sentence, vector<pair<string, string> >& words) const {
+    if(sentence.empty()) return;
     mix_seg_.Tag(sentence, words);
   }
   string LookupTag(const string &str) const {