root/lang/cplusplus/debugprint/debugprint_common.hpp @ 20293

/**
 * debugprint.hpp, indented_debugprint.hppの共通部分
 * repr: いろんなオブジェクトを受け取って文字列化する関数
 *
 */
#ifndef NISHIO_DEBUGPRINT_COMMON_HPP
#define NISHIO_DEBUGPRINT_COMMON_HPP

#include <sstream>
#include <utility>
#include <vector>
#include <map>
#include <algorithm>

namespace debugprint{
  namespace common{

// make string representation
template<class T>
std::string repr(const T& value) {
  std::ostringstream result;
  result << value;
  return result.str();
}
;

// repr pair
template<class K, class V>
std::string repr(const std::pair<K, V>& x) {
  std::ostringstream result;
  result << "(" << repr(x.first) << ", " << repr(x.second) << ")";
  return result.str();
}
;

// repr vector
template<class V>
std::string repr(const std::vector<V>& v) {
  std::ostringstream result;
  if (v.empty()) {
    return "{}";
  }
  result << "{" << repr(*(v.begin()));
  typedef typename std::vector<V>::const_iterator Iter;
  for (Iter it = ++v.begin(), end = v.end(); it != end; ++it) {
    result << ", " << repr(*it);
  }
  result << "}";
  return result.str();
}
;

template<typename K, typename V>
std::string repr(const std::map<K, V> m) {
  std::ostringstream result;
  if(m.empty()){
    return "{}";
  }
  typedef typename std::map<K, V>::const_iterator Iter;
  Iter it = m.begin();
  result << "{" << repr(it->first) << ": " << repr(it->second);
  ++it;
  for (Iter end = m.end(); it != end; ++it) {
    if (it != m.begin())
      result << ", " << repr(it->first) << ": " << repr(it->second);
  }
  result << "}";
  return result.str();
}
;


  }
}

#endif