Hex.h

#pragma once
 
#include <iomanip>
 
namespace pflib::packing {
 
template <typename WordType, std::size_t HexWidth = 2 * sizeof(WordType)>
struct hex {
  WordType& word_;
  hex(WordType& w) : word_{w} {}
  friend inline std::ostream& operator<<(
      std::ostream& os, const pflib::packing::hex<WordType, HexWidth>& h) {
    os << "0x" << std::setfill('0') << std::setw(HexWidth) << std::hex
       << h.word_ << std::dec;
    return os;
  }
};
 
}  // namespace pflib::packing