duckdb::FastMod< TYPE > Class Template Reference

Public Member Functions
	FastMod (TYPE divisor_p)
TYPE	Div (const TYPE &val) const
TYPE	Mod (const TYPE &val, const TYPE &quotient) const
TYPE	Mod (const TYPE &val) const
const TYPE &	GetDivisor () const

Private Types
using	NEXT_TYPE = typename NextUnsigned< TYPE >::type

Private Attributes
const TYPE	divisor
const TYPE	multiplier

Constructor & Destructor Documentation

FastMod()

template<class TYPE >

duckdb::FastMod< TYPE >::FastMod ( TYPE  divisor_p )

inlineexplicit

                                     : divisor(divisor_p), multiplier((static_cast<TYPE>(-1) / divisor) + 1) {
    }

Member Function Documentation

Div()

template<class TYPE >

TYPE duckdb::FastMod< TYPE >::Div ( const TYPE &  val ) const

inline

                                    {
        return static_cast<TYPE>((static_cast<NEXT_TYPE>(val) * multiplier) >> (sizeof(TYPE) * 8)); // NOLINT
    }

Mod() [1/2]

template<class TYPE >

TYPE duckdb::FastMod< TYPE >::Mod ( const TYPE &  val, const TYPE &  quotient  ) const

inline

                                                          {
        return val - quotient * divisor;
    }

Mod() [2/2]

template<class TYPE >

TYPE duckdb::FastMod< TYPE >::Mod ( const TYPE &  val ) const

inline

                                    {
        return Mod(val, Div(val));
    }

GetDivisor()

template<class TYPE >

const TYPE & duckdb::FastMod< TYPE >::GetDivisor ( ) const

inline

                                   {
        return divisor;
    }

---

The documentation for this class was generated from the following file:

• external/duckdb/duckdb.hpp