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StdExtension.hpp
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StdExtension.hpp
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#ifndef LIMONP_STD_EXTEMSION_HPP
#define LIMONP_STD_EXTEMSION_HPP
#include <map>
#ifdef __APPLE__
#include <unordered_map>
#include <unordered_set>
#elif(__cplusplus >= 201103L)
#include <unordered_map>
#include <unordered_set>
#elif defined _MSC_VER
#include <unordered_map>
#include <unordered_set>
#else
#include <tr1/unordered_map>
#include <tr1/unordered_set>
namespace std {
using std::tr1::unordered_map;
using std::tr1::unordered_set;
}
#endif
#include <set>
#include <string>
#include <vector>
#include <deque>
#include <fstream>
#include <sstream>
namespace std {
template<typename T>
ostream& operator << (ostream& os, const vector<T>& v) {
if(v.empty()) {
return os << "[]";
}
os<<"["<<v[0];
for(size_t i = 1; i < v.size(); i++) {
os<<", "<<v[i];
}
os<<"]";
return os;
}
template<>
inline ostream& operator << (ostream& os, const vector<string>& v) {
if(v.empty()) {
return os << "[]";
}
os<<"[\""<<v[0];
for(size_t i = 1; i < v.size(); i++) {
os<<"\", \""<<v[i];
}
os<<"\"]";
return os;
}
template<typename T>
ostream& operator << (ostream& os, const deque<T>& dq) {
if(dq.empty()) {
return os << "[]";
}
os<<"[\""<<dq[0];
for(size_t i = 1; i < dq.size(); i++) {
os<<"\", \""<<dq[i];
}
os<<"\"]";
return os;
}
template<class T1, class T2>
ostream& operator << (ostream& os, const pair<T1, T2>& pr) {
os << pr.first << ":" << pr.second ;
return os;
}
template<class T>
string& operator << (string& str, const T& obj) {
stringstream ss;
ss << obj; // call ostream& operator << (ostream& os,
return str = ss.str();
}
template<class T1, class T2>
ostream& operator << (ostream& os, const map<T1, T2>& mp) {
if(mp.empty()) {
os<<"{}";
return os;
}
os<<'{';
typename map<T1, T2>::const_iterator it = mp.begin();
os<<*it;
it++;
while(it != mp.end()) {
os<<", "<<*it;
it++;
}
os<<'}';
return os;
}
template<class T1, class T2>
ostream& operator << (ostream& os, const std::unordered_map<T1, T2>& mp) {
if(mp.empty()) {
return os << "{}";
}
os<<'{';
typename std::unordered_map<T1, T2>::const_iterator it = mp.begin();
os<<*it;
it++;
while(it != mp.end()) {
os<<", "<<*it++;
}
return os<<'}';
}
template<class T>
ostream& operator << (ostream& os, const set<T>& st) {
if(st.empty()) {
os << "{}";
return os;
}
os<<'{';
typename set<T>::const_iterator it = st.begin();
os<<*it;
it++;
while(it != st.end()) {
os<<", "<<*it;
it++;
}
os<<'}';
return os;
}
template<class KeyType, class ContainType>
bool IsIn(const ContainType& contain, const KeyType& key) {
return contain.end() != contain.find(key);
}
template<class T>
basic_string<T> & operator << (basic_string<T> & s, ifstream & ifs) {
return s.assign((istreambuf_iterator<T>(ifs)), istreambuf_iterator<T>());
}
template<class T>
ofstream & operator << (ofstream & ofs, const basic_string<T>& s) {
ostreambuf_iterator<T> itr (ofs);
copy(s.begin(), s.end(), itr);
return ofs;
}
} // namespace std
#endif