From 92fdf009cbcd13ca1dc9f592b2e7b5fbd84276b9 Mon Sep 17 00:00:00 2001
From: yanyiwu <wuyanyi09@foxmail.com>
Date: Fri, 18 Mar 2016 14:05:18 +0800
Subject: [PATCH] Upgrade limonp to v0.5.6 to fix hidden trouble.

---
 ChangeLog.md               | 4 ++++
 deps/limonp/StringUtil.hpp | 9 +++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/ChangeLog.md b/ChangeLog.md
index 83d0cda..1128bf2 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # CppJieba ChangeLog
 
+## next version
+
++ Upgrade limonp to v0.5.6 to fix hidden trouble.
+
 ## v4.5.1
 
 + Upgrade limonp to v0.5.5 to solve macro name conficts in some special case. 
diff --git a/deps/limonp/StringUtil.hpp b/deps/limonp/StringUtil.hpp
index 41d451e..c08ae8f 100644
--- a/deps/limonp/StringUtil.hpp
+++ b/deps/limonp/StringUtil.hpp
@@ -78,13 +78,18 @@ inline string& Lower(string& str) {
   return str;
 }
 
+inline bool IsSpace(unsigned c) {
+  // when passing large int as the argument of isspace, it core dump, so here need a type cast.
+  return c > 0xff ? false : std::isspace(c & 0xff);
+}
+
 inline std::string& LTrim(std::string &s) {
-  s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<int, int>(std::isspace))));
+  s.erase(s.begin(), std::find_if(s.begin(), s.end(), std::not1(std::ptr_fun<unsigned, bool>(IsSpace))));
   return s;
 }
 
 inline std::string& RTrim(std::string &s) {
-  s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
+  s.erase(std::find_if(s.rbegin(), s.rend(), std::not1(std::ptr_fun<unsigned, bool>(IsSpace))).base(), s.end());
   return s;
 }