SST::RNG::XORShiftRNG Class Reference

Implements a lightweight RNG based on XOR-shift operations. More...

Inheritance diagram for SST::RNG::XORShiftRNG:

Public Member Functions
	XORShiftRNG (unsigned int seed)
	Create a new Mersenne RNG with a specified seed.
	XORShiftRNG ()
	Creates a new Mersenne using a random seed which is obtained from the system clock.
double	nextUniform ()
	Generates the next random number as a double value between 0 and 1.
uint32_t	generateNextUInt32 ()
	Generates the next random number as an unsigned 32-bit integer.
uint64_t	generateNextUInt64 ()
	Generates the next random number as an unsigned 64-bit integer.
int64_t	generateNextInt64 ()
	Generates the next random number as a signed 64-bit integer.
int32_t	generateNextInt32 ()
	Generates the next random number as a signed 32-bit integer.
	~XORShiftRNG ()
	Destructor for Mersenne.
Protected Attributes
uint32_t	x
uint32_t	y
uint32_t	z
uint32_t	w

Detailed Description

Implements a lightweight RNG based on XOR-shift operations.

We utilize the XORSHIFT algorithm from: http://en.wikipedia.org/wiki/Xorshift. This is a very lightweight and inexpensive RNG.

XORShiftRNG::XORShiftRNG ( unsigned int seed )

Create a new Mersenne RNG with a specified seed.

Parameters:

[in] seed The seed for this RNG

XORShiftRNG::XORShiftRNG ( )

Creates a new Mersenne using a random seed which is obtained from the system clock.

Note this will give different results on different platforms and between runs.

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