CRC.h

#ifndef PACKING_UTILITY_CRC_H_
#define PACKING_UTILITY_CRC_H_
 
#include <boost/crc.hpp>
#include <vector>
 
namespace packing {
namespace utility {
 
class CRC {
 public:
  template <typename WordType,
            std::enable_if_t<std::is_integral<WordType>::value, bool> = true>
  CRC& operator<<(const WordType& w) {
    crc_.process_bytes(&w, sizeof(WordType));
    return *this;
  }
 
  template <typename ObjectType,
            std::enable_if_t<std::is_class<ObjectType>::value, bool> = true>
  CRC& operator<<(const ObjectType& o) {
    return o.add(*this);
  }
 
  template <typename ContentType>
  CRC& operator<<(const std::vector<ContentType>& vec) {
    for (auto const& w : vec) *this << w;
    return *this;
  }
 
  uint32_t get() { return crc_.checksum(); }
 
 private:
  boost::crc_32_type crc_;
};  // CRC
 
}  // namespace utility
}  // namespace packing
 
#endif  // PACKING_UTILITY_CRC_H_