libstdc++
std::mersenne_twister_engine< _UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f > Class Template Reference
Random Number Generation » Random Number Generators

Detailed Description

template<typename _UIntType, size_t __w, size_t __n, size_t __m, size_t __r, _UIntType __a, size_t __u, _UIntType __d, size_t __s, _UIntType __b, size_t __t, _UIntType __c, size_t __l, _UIntType __f>
class std::mersenne_twister_engine< _UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f >

A generalized feedback shift register discrete random number generator.

This algorithm avoids multiplication and division and is designed to be friendly to a pipelined architecture. If the parameters are chosen correctly, this generator will produce numbers with a very long period and fairly good apparent entropy, although still not cryptographically strong.

The best way to use this generator is with the predefined mt19937 class.

This algorithm was originally invented by Makoto Matsumoto and Takuji Nishimura.

Template Parameters
__wWord size, the number of bits in each element of the state vector.
__nThe degree of recursion.
__mThe period parameter.
__rThe separation point bit index.
__aThe last row of the twist matrix.
__uThe first right-shift tempering matrix parameter.
__dThe first right-shift tempering matrix mask.
__sThe first left-shift tempering matrix parameter.
__bThe first left-shift tempering matrix mask.
__tThe second left-shift tempering matrix parameter.
__cThe second left-shift tempering matrix mask.
__lThe second right-shift tempering matrix parameter.
__fInitialization multiplier.

Definition at line 451 of file random.h.

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