external_libraries/yaml-cpp-0.3.0/include/yaml-cpp/binary.h

   1 #ifndef BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66
   2 #define BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66
   3
   4 #if defined(_MSC_VER) || (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || (__GNUC__ >= 4)) // GCC supports "pragma once" correctly since 3.4
   5 #pragma once
   6 #endif
   7
   8 #include <string>
   9 #include <vector>
  10
  11 namespace YAML
  12 {
  13     class Node;
  14
  15     std::string EncodeBase64(const unsigned char *data, std::size_t size);
  16     std::vector<unsigned char> DecodeBase64(const std::string& input);
  17
  18     class Binary {
  19     public:
  20         Binary(): m_unownedData(0), m_unownedSize(0) {}
  21         Binary(const unsigned char *data, std::size_t size): m_unownedData(data), m_unownedSize(size) {}
  22
  23         bool owned() const { return !m_unownedData; }
  24         std::size_t size() const { return owned() ? m_data.size() : m_unownedSize; }
  25         const unsigned char *data() const { return owned() ? &m_data[0] : m_unownedData; }
  26
  27         void swap(std::vector<unsigned char>& rhs) {
  28             if(m_unownedData) {
  29                 m_data.swap(rhs);
  30                 rhs.clear();
  31                 rhs.resize(m_unownedSize);
  32                 std::copy(m_unownedData, m_unownedData + m_unownedSize, &rhs[0]);
  33                 m_unownedData = 0;
  34                 m_unownedSize = 0;
  35             } else {
  36                 m_data.swap(rhs);
  37             }
  38         }
  39
  40         bool operator == (const Binary& rhs) const {
  41             const std::size_t s = size();
  42             if(s != rhs.size())
  43                 return false;
  44             const unsigned char *d1 = data();
  45             const unsigned char *d2 = rhs.data();
  46             for(std::size_t i=0;i<s;i++) {
  47                 if(*d1++ != *d2++)
  48                     return false;
  49             }
  50             return true;
  51         }
  52
  53         bool operator != (const Binary& rhs) const {
  54             return !(*this == rhs);
  55         }
  56
  57     private:
  58         std::vector<unsigned char> m_data;
  59         const unsigned char *m_unownedData;
  60         std::size_t m_unownedSize;
  61     };
  62
  63     void operator >> (const Node& node, Binary& binary);
  64 }
  65
  66 #endif // BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66