Random Number Generators
[Random Number Generation]

Collaboration diagram for Random Number Generators:

Classes

Typedefs

Functions


Detailed Description

These classes define objects which provide random or pseudorandom numbers, either from a discrete or a continuous interval. The random number generator supplied as a part of this library are all uniform random number generators which provide a sequence of random number uniformly distributed over their range.

A number generator is a function object with an operator() that takes zero arguments and returns a number.

A compliant random number generator must satisfy the following requirements.

Random Number Generator Requirements

To be documented.


Typedef Documentation

typedef minstd_rand0 std::default_random_engine

Definition at line 1359 of file random.h.

typedef shuffle_order_engine<minstd_rand0, 256> std::knuth_b

Definition at line 1354 of file random.h.

typedef linear_congruential_engine<uint_fast32_t, 48271UL, 0UL, 2147483647UL> std::minstd_rand

An alternative LCR (Lehmer Generator function) .

Definition at line 1308 of file random.h.

typedef linear_congruential_engine<uint_fast32_t, 16807UL, 0UL, 2147483647UL> std::minstd_rand0

The classic Minimum Standard rand0 of Lewis, Goodman, and Miller.

Definition at line 1302 of file random.h.

typedef mersenne_twister_engine< uint_fast32_t, 32, 624, 397, 31, 0x9908b0dfUL, 11, 0xffffffffUL, 7, 0x9d2c5680UL, 15, 0xefc60000UL, 18, 1812433253UL> std::mt19937

The classic Mersenne Twister.

Reference: M. Matsumoto and T. Nishimura, "Mersenne Twister: A 623-Dimensionally Equidistributed Uniform Pseudo-Random Number Generator", ACM Transactions on Modeling and Computer Simulation, Vol. 8, No. 1, January 1998, pp 3-30.

Definition at line 1324 of file random.h.

typedef mersenne_twister_engine< uint_fast64_t, 64, 312, 156, 31, 0xb5026f5aa96619e9ULL, 29, 0x5555555555555555ULL, 17, 0x71d67fffeda60000ULL, 37, 0xfff7eee000000000ULL, 43, 6364136223846793005ULL> std::mt19937_64

An alternative Mersenne Twister.

Definition at line 1336 of file random.h.

typedef subtract_with_carry_engine<uint_fast32_t, 24, 10, 24> std::ranlux24_base

Definition at line 1342 of file random.h.


Function Documentation

template<typename _RandomNumberEngine , size_t __w, typename _UIntType , typename _CharT , typename _Traits >
std::basic_ostream<_CharT, _Traits>& std::operator<< ( std::basic_ostream< _CharT, _Traits > &  __os,
const std::independent_bits_engine< _RandomNumberEngine, __w, _UIntType > &  __x 
) [inline]

Inserts the current state of a independent_bits_engine random number generator engine __x into the output stream __os.

Parameters:
__os An output stream.
__x A independent_bits_engine random number generator engine.
Returns:
The output stream with the state of __x inserted or in an error state.

Definition at line 1081 of file random.h.


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