mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-03 23:15:52 +00:00
7caa87862e
All #ifndef guards on headers have been removed, I think, in favor of #pragma once Headers are now included as `#include "filename"` if the included file resides in the same directory as the file including it, or any subdirectory therein. Otherwise they are included as `#include <project/top/dir/relative/path/filename>` The above does not include system/os headers.
74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
#pragma once
|
|
|
|
#include <bitset>
|
|
#include <cstddef>
|
|
#include <numeric>
|
|
#include <type_traits>
|
|
#include <limits>
|
|
#include <llarp/net/uint128.hpp>
|
|
#include <llarp/net/net_int.hpp>
|
|
|
|
namespace llarp
|
|
{
|
|
namespace bits
|
|
{
|
|
template <typename Int_t>
|
|
constexpr std::size_t
|
|
count_bits(Int_t i)
|
|
{
|
|
static_assert(std::is_integral<Int_t>::value, "Int_t should be an integer");
|
|
static_assert(std::is_unsigned<Int_t>::value, "Int_t should be unsigned");
|
|
return std::bitset<std::numeric_limits<Int_t>::digits>(i).count();
|
|
}
|
|
|
|
constexpr std::size_t
|
|
count_bits_128(const uint128_t& i)
|
|
{
|
|
return count_bits(i.upper) + count_bits(i.lower);
|
|
}
|
|
|
|
template <>
|
|
constexpr std::size_t
|
|
count_bits(huint32_t x)
|
|
{
|
|
return count_bits(x.h);
|
|
}
|
|
|
|
template <>
|
|
constexpr std::size_t
|
|
count_bits(nuint32_t x)
|
|
{
|
|
return count_bits(x.n);
|
|
}
|
|
|
|
template <>
|
|
constexpr std::size_t
|
|
count_bits(huint128_t x)
|
|
{
|
|
return count_bits_128(x.h);
|
|
}
|
|
|
|
template <>
|
|
constexpr std::size_t
|
|
count_bits(nuint128_t x)
|
|
{
|
|
return count_bits_128(x.n);
|
|
}
|
|
|
|
template <typename InputIt>
|
|
constexpr std::size_t
|
|
count_array_bits_impl(InputIt begin, InputIt end)
|
|
{
|
|
return std::accumulate(
|
|
begin, end, 0, [](auto acc, auto val) { return acc + count_bits(val); });
|
|
}
|
|
|
|
template <typename T>
|
|
constexpr std::size_t
|
|
count_array_bits(const T& array)
|
|
{
|
|
return count_array_bits_impl(std::begin(array), std::end(array));
|
|
}
|
|
} // namespace bits
|
|
} // namespace llarp
|