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third_party/yaml-cpp/include/yaml-cpp/binary.h

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+#ifndef BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66
+#define BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66
+
+#if defined(_MSC_VER) ||                                            \
+    (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
+     (__GNUC__ >= 4))  // GCC supports "pragma once" correctly since 3.4
+#pragma once
+#endif
+
+#include <string>
+#include <vector>
+
+#include "yaml-cpp/dll.h"
+
+namespace YAML {
+YAML_CPP_API std::string EncodeBase64(const unsigned char *data,
+                                      std::size_t size);
+YAML_CPP_API std::vector<unsigned char> DecodeBase64(const std::string &input);
+
+class YAML_CPP_API Binary {
+ public:
+  Binary(const unsigned char *data_, std::size_t size_)
+      : m_data{}, m_unownedData(data_), m_unownedSize(size_) {}
+  Binary() : Binary(nullptr, 0) {}
+  Binary(const Binary &) = default;
+  Binary(Binary &&) = default;
+  Binary &operator=(const Binary &) = default;
+  Binary &operator=(Binary &&) = default;
+
+  bool owned() const { return !m_unownedData; }
+  std::size_t size() const { return owned() ? m_data.size() : m_unownedSize; }
+  const unsigned char *data() const {
+    return owned() ? &m_data[0] : m_unownedData;
+  }
+
+  void swap(std::vector<unsigned char> &rhs) {
+    if (m_unownedData) {
+      m_data.swap(rhs);
+      rhs.clear();
+      rhs.resize(m_unownedSize);
+      std::copy(m_unownedData, m_unownedData + m_unownedSize, rhs.begin());
+      m_unownedData = nullptr;
+      m_unownedSize = 0;
+    } else {
+      m_data.swap(rhs);
+    }
+  }
+
+  bool operator==(const Binary &rhs) const {
+    const std::size_t s = size();
+    if (s != rhs.size())
+      return false;
+    const unsigned char *d1 = data();
+    const unsigned char *d2 = rhs.data();
+    for (std::size_t i = 0; i < s; i++) {
+      if (*d1++ != *d2++)
+        return false;
+    }
+    return true;
+  }
+
+  bool operator!=(const Binary &rhs) const { return !(*this == rhs); }
+
+ private:
+  std::vector<unsigned char> m_data;
+  const unsigned char *m_unownedData;
+  std::size_t m_unownedSize;
+};
+}  // namespace YAML
+
+#endif  // BASE64_H_62B23520_7C8E_11DE_8A39_0800200C9A66