Goddess of Justice DB, the database used for storage on IzaroDFS
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#pragma once
#include <stdint.h>
#include <stddef.h>
#include <array>
#include <algorithm>
#if __cplusplus <= 201703L
namespace _hidden{
enum class endian
{
#ifdef _WIN32
little = 0,
big = 1,
native = little
#else
little = __ORDER_LITTLE_ENDIAN__,
big = __ORDER_BIG_ENDIAN__,
native = __BYTE_ORDER__
#endif
};
}
namespace bitops{
using endian = _hidden::endian;
}
#else
#include <type_traits>
namespace bitops{
using endian = std::endian;
}
#endif
namespace bitops{
template<typename T, size_t sz = sizeof(T)>
constexpr std::array<uint8_t,sizeof(T)> swap_if_little_raw(T xsz)
{
std::array<uint8_t,sizeof(T)> ret = {0};
auto abstract = (std::array<uint8_t,sizeof(T)>*)&xsz;
if constexpr (endian::native == endian::little)
{
std::copy(abstract->rbegin(), abstract->rend(), ret.begin());
}
else
{
std::copy(abstract->begin(), abstract->end(), ret.begin());
}
return ret;
}
template<typename T, size_t sz = sizeof(T)>
constexpr T swap_if_little(T xsz)
{
auto tmp = swap_if_little_raw(xsz);
return *(T*)&tmp;
}
template<typename T>
struct [[gnu::packed]] regulated{
T internal = 0;
constexpr regulated(T value)
: internal{swap_if_little(value)}
{ }
constexpr void operator=(T value)
{
internal = swap_if_little(value);
}
constexpr void operator+=(const int& v)
{
internal = swap_if_little(T(*this)+v);
}
constexpr operator T() const {
return swap_if_little(internal);
}
};
}