endian.hpp

#include <stdint.h>

template<typename T>
inline uint32_t pack_big_uint32(T a, T b, T c, T d) {
  return static_cast<uint32_t>(
    static_cast<uint8_t>(d) | static_cast<uint8_t>(c) << 8 |
    static_cast<uint8_t>(b) << 16 | static_cast<uint8_t>(a) << 24
  );
}

template<typename T>
inline int32_t pack_big_int32(T a, T b, T c, T d) {
  return static_cast<int32_t>(pack_big_uint32(a, b, c, d));
}