day.h

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/******************************************************************************
The MIT License(MIT)
 
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
 
Copyright(c) 2023 John Wellbelove
 
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#ifndef ETL_IN_CHRONO_H
  #error DO NOT DIRECTLY INCLUDE THIS FILE. USE CHRONO.H
#endif
 
namespace etl
{
  namespace chrono
  {
    //***********************************************************************
    //***********************************************************************
    class day
    {
    public:
 
      using rep = uint_least8_t;
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR day() ETL_NOEXCEPT
        : value(0)
      {
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR explicit day(unsigned value_) ETL_NOEXCEPT
        : value(static_cast<unsigned char>(value_))
      {
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 day(const etl::chrono::day& other) ETL_NOEXCEPT
        : value(other.value)
      {
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day& operator =(const etl::chrono::day& rhs) ETL_NOEXCEPT
      {
        value = rhs.value;
 
        return *this;
      }
 
      //***********************************************************************
      //***********************************************************************
      template <typename TToDuration, typename TValue2, typename TPeriod2>
      ETL_CONSTEXPR14 etl::chrono::day& operator =(const etl::chrono::duration<TValue2, TPeriod2>& rhs)
      {
        value = etl::chrono::duration_cast<TToDuration, TValue2, TPeriod2>(rhs);
 
        return *this;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day& operator ++() ETL_NOEXCEPT
      {
        ++value;
 
        return *this;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day operator ++(int) ETL_NOEXCEPT
      {
        const etl::chrono::day temp = *this;
        ++value;
 
        return temp;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day& operator --() ETL_NOEXCEPT
      {
        --value;
 
        return *this;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day operator --(int) ETL_NOEXCEPT
      {
        const etl::chrono::day temp = *this;
        --value;
 
        return temp;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day& operator +=(const etl::chrono::days& ds) ETL_NOEXCEPT
      {
        value += static_cast<unsigned char>(ds.count());
 
        return *this;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 etl::chrono::day& operator -=(const etl::chrono::days& ds) ETL_NOEXCEPT
      {
        value -= static_cast<unsigned char>(ds.count());
 
        return *this;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_NODISCARD
      ETL_CONSTEXPR14 bool ok() const ETL_NOEXCEPT
      {
        return (value >= 1U) && (value <= 31U);
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_CONSTEXPR14 operator unsigned() const ETL_NOEXCEPT
      {
        return static_cast<unsigned>(value);
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_NODISCARD
      ETL_CONSTEXPR14 int compare(const day& other) const ETL_NOEXCEPT 
      {
        if (value < other.value) return -1;
        if (value > other.value) return 1;
 
        return 0;
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_NODISCARD
      static ETL_CONSTEXPR14 etl::chrono::day min() ETL_NOEXCEPT
      {
        return etl::chrono::day(1);
      }
 
      //***********************************************************************
      //***********************************************************************
      ETL_NODISCARD
      static ETL_CONSTEXPR14 etl::chrono::day max() ETL_NOEXCEPT
      {
        return etl::chrono::day(31);
      }
 
    private:
 
      rep value;
    };
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 bool operator ==(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return (static_cast<unsigned>(d1) == static_cast<unsigned>(d2));
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 bool operator !=(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return !(d1 == d2);
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 bool operator <(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return (static_cast<unsigned>(d1) < static_cast<unsigned>(d2));
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 bool operator <=(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return (static_cast<unsigned>(d1) <= static_cast<unsigned>(d2));
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 bool operator >(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return (static_cast<unsigned>(d1) > static_cast<unsigned>(d2));
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 bool operator >=(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return (static_cast<unsigned>(d1) >= static_cast<unsigned>(d2));
    }
 
    //***********************************************************************
    //***********************************************************************
#if ETL_USING_CPP20
    [[nodiscard]] inline constexpr auto operator <=>(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return (static_cast<unsigned>(d1) <=> static_cast<unsigned>(d2));
    }
#endif
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 etl::chrono::day operator +(const etl::chrono::day& d, const etl::chrono::days& ds) ETL_NOEXCEPT
    {
      etl::chrono::day result(d);
 
      result += ds;
 
      return result;
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 etl::chrono::day operator +(const etl::chrono::days& ds, const etl::chrono::day& d) ETL_NOEXCEPT
    {
      etl::chrono::day result(d);
 
      result += ds;
 
      return result;
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 etl::chrono::day operator -(const etl::chrono::day& d, const etl::chrono::days& ds) ETL_NOEXCEPT
    {
      etl::chrono::day result(d);
 
      result -= ds;
 
      return result;
    }
 
    //***********************************************************************
    //***********************************************************************
    inline ETL_CONSTEXPR14 etl::chrono::days operator -(const etl::chrono::day& d1, const etl::chrono::day& d2) ETL_NOEXCEPT
    {
      return etl::chrono::days(static_cast<int>(static_cast<unsigned>(d1)) - 
                               static_cast<int>(static_cast<unsigned>(d2)));
    }
  }
 
  //*************************************************************************
  //*************************************************************************
#if ETL_USING_8BIT_TYPES
  template <>
  struct hash<etl::chrono::day>
  {
    size_t operator()(const etl::chrono::day& d) const
    {
      etl::chrono::day::rep value = static_cast<etl::chrono::day::rep>(static_cast<unsigned>(d));
      const uint8_t* p = reinterpret_cast<const uint8_t*>(&value);
 
      return etl::private_hash::generic_hash<size_t>(p, p + sizeof(value));
    }
  };
#endif
}
 
#if ETL_HAS_CHRONO_LITERALS_DAY
namespace etl
{
  inline namespace literals
  {
    inline namespace chrono_literals
    {
#if ETL_USING_VERBOSE_CHRONO_LITERALS
  inline ETL_CONSTEXPR14 etl::chrono::day operator ""_day(unsigned long long d) ETL_NOEXCEPT
#else
  inline ETL_CONSTEXPR14 etl::chrono::day operator ""_d(unsigned long long d) ETL_NOEXCEPT
#endif
      {
        return etl::chrono::day(static_cast<unsigned>(d));
      }
    }
  }
}
#endif