duckdb::ReservoirRNG Class Reference

Inheritance diagram for duckdb::ReservoirRNG:

Collaboration diagram for duckdb::ReservoirRNG:

Public Types
typedef uint32_t	result_type

Public Member Functions
	ReservoirRNG (int64_t seed)
result_type	operator() ()
Public Member Functions inherited from duckdb::RandomEngine
	RandomEngine (int64_t seed=-1)
double	NextRandom (double min, double max)
	Generate a random number between min and max.
double	NextRandom ()
	Generate a random number between 0 and 1.
double	NextRandom32 ()
	Generate a random number between 0 and 1, using 32-bits as a base.
double	NextRandom32 (double min, double max)
uint32_t	NextRandomInteger32 (uint32_t min, uint32_t max)
uint32_t	NextRandomInteger ()
uint32_t	NextRandomInteger (uint32_t min, uint32_t max)
uint64_t	NextRandomInteger64 ()
void	SetSeed (uint64_t seed)
void	RandomData (duckdb::data_ptr_t data, duckdb::idx_t len)

Static Public Member Functions
static constexpr result_type	min ()
static constexpr result_type	max ()
Static Public Member Functions inherited from duckdb::RandomEngine
static RandomEngine &	Get (ClientContext &context)

Additional Inherited Members
Public Attributes inherited from duckdb::RandomEngine
mutex	lock

Constructor & Destructor Documentation

ReservoirRNG()

duckdb::ReservoirRNG::ReservoirRNG ( int64_t  seed )

inlineexplicit

: RandomEngine(seed) {};

Member Function Documentation

operator()()

result_type duckdb::ReservoirRNG::operator() ( )

inline

                             {
        return NextRandomInteger();
    };

min()

static constexpr result_type duckdb::ReservoirRNG::min ( )

inlinestaticconstexpr

                                       {
        return NumericLimits<result_type>::Minimum();
    };

max()

static constexpr result_type duckdb::ReservoirRNG::max ( )

inlinestaticconstexpr

                                       {
        return NumericLimits<result_type>::Maximum();
    };

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

• external/duckdb/duckdb.hpp