c++ string trim函数实现

#include <string> #include <vector> #include <algorithm> #include <functional> using namespace std; inline string& lTrim(string &ss) { string::iterator p=find_if(ss.begin(),ss.end(),not1(ptr_fun(isspace))); ss.erase(ss.begin(),p); return ss; } inline string& rTrim(string &ss) { string::reverse_iterator p=find_if(ss.rbegin(),ss.rend(),not1(ptr_fun(isspace))); ss.erase(p.base(),ss.end()); return ss; } inline string& trim(string &st) { lTrim(rTrim(st)); return st; }