utils.hpp

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#pragma once
 
#include "itk/logger.hpp"
 
#include <cassert>
#include <span>
#include <chrono>
 
namespace itk::utils {
 
// making string from u8, u16, u32 streams
std::string to_string(const std::span<const uint8_t>  data);
std::string to_string(const std::span<const uint16_t> data);
std::string to_string(const std::span<const uint32_t> data);
std::string to_string(const std::span<const uint64_t> data);
 
 
} // itk::utils
 
template <uint n, typename T>
inline void trunc_bits(T& val) {
  static_assert(std::is_unsigned<T>(), "Unsigned type must be passed");
  constexpr T mask = static_cast<T>(~(static_cast<T>(~0) << n));
  auto tmp = val;
  val &= mask;
  assert(val == tmp);
}
 
 
inline uint32_t hex_to_int(const std::string &str) {
  std::size_t pos;
  uint32_t res = stol(str, &pos, 16);
  if (str.length() != pos) {
    throw std::runtime_error("incorrect hex string.");
  }
  return res;
}
 
 
inline uint delta_msec(std::chrono::steady_clock::duration delta) {
  using namespace std::chrono;
  return duration_cast<milliseconds>(delta).count();
}