| std::subtract_with_carry_engine< _UIntType, __w, __s, __r >(3cxx) | std::subtract_with_carry_engine< _UIntType, __w, __s, __r >(3cxx) |
std::subtract_with_carry_engine< _UIntType, __w, __s, __r > - The Marsaglia-Zaman generator.
#include <random.h>
typedef _UIntType result_type
template<typename _Sseq , typename =
_If_seed_seq<_Sseq>> subtract_with_carry_engine (_Sseq
&__q)
Constructs a subtract_with_carry_engine random number engine seeded from the
seed sequence __q. subtract_with_carry_engine
(result_type __sd)
Constructs an explicitly seeded subtract_with_carry_engine random number
generator. void discard (unsigned long long __z)
Discard a sequence of random numbers. result_type operator() ()
Gets the next random number in the sequence. template<typename _Sseq >
_If_seed_seq< _Sseq > seed (_Sseq &__q)
Seeds the initial state $x_0$ of the % subtract_with_carry_engine random
number generator. template<typename _Sseq > auto seed (_Sseq
&__q) -> _If_seed_seq< _Sseq >
void seed (result_type __sd=default_seed)
Seeds the initial state $x_0$ of the random number generator.
static constexpr result_type max ()
Gets the inclusive maximum value of the range of random integers returned by
this generator. static constexpr result_type min ()
Gets the inclusive minimum value of the range of random integers returned by
this generator.
static constexpr result_type default_seed
static constexpr size_t long_lag
static constexpr size_t short_lag
static constexpr size_t word_size
template<typename _UIntType1 , size_t __w1, size_t __s1, size_t
__r1, typename _CharT , typename _Traits > std::basic_ostream<
_CharT, _Traits > & operator<<
(std::basic_ostream< _CharT, _Traits > &__os, const
std::subtract_with_carry_engine< _UIntType1, __w1, __s1, __r1 >
&__x)
Inserts the current state of a % subtract_with_carry_engine random number
generator engine __x into the output stream __os. bool
operator== (const subtract_with_carry_engine &__lhs, const
subtract_with_carry_engine &__rhs)
Compares two % subtract_with_carry_engine random number generator objects of
the same type for equality. template<typename _UIntType1 , size_t __w1,
size_t __s1, size_t __r1, typename _CharT , typename _Traits >
std::basic_istream< _CharT, _Traits > &
operator>> (std::basic_istream< _CharT, _Traits >
&__is, std::subtract_with_carry_engine< _UIntType1, __w1,
__s1, __r1 > &__x)
Extracts the current state of a % subtract_with_carry_engine random number
generator engine __x from the input stream __is.
class std::subtract_with_carry_engine< _UIntType, __w, __s, __r >"The Marsaglia-Zaman generator.
This is a model of a Generalized Fibonacci discrete random number generator, sometimes referred to as the SWC generator.
A discrete random number generator that produces pseudorandom
numbers using:
x_{i} ]
The size of the state is $r$ and the maximum period of the generator is $(m^r - m^s - 1)$.
Definition at line 692 of file random.h.
The type of the generated random value.
Definition at line 707 of file random.h.
Definition at line 715 of file random.h.
Constructs an explicitly seeded subtract_with_carry_engine random number generator.
Definition at line 723 of file random.h.
References std::subtract_with_carry_engine< _UIntType, __w, __s, __r >::seed().
Constructs a subtract_with_carry_engine random number engine seeded from the seed sequence __q.
Parameters
Definition at line 734 of file random.h.
References std::subtract_with_carry_engine< _UIntType, __w, __s, __r >::seed().
Discard a sequence of random numbers.
Definition at line 780 of file random.h.
Gets the inclusive maximum value of the range of random integers returned by this generator.
Definition at line 773 of file random.h.
Gets the inclusive minimum value of the range of random integers returned by this generator.
Definition at line 765 of file random.h.
Gets the next random number in the sequence.
Definition at line 593 of file bits/random.tcc.
Seeds the initial state $x_0$ of the % subtract_with_carry_engine random number generator.
"
Definition at line 566 of file bits/random.tcc.
Seeds the initial state $x_0$ of the random number generator. N1688[4.19] modifies this as follows. If __value == 0, sets value to 19780503. In any case, with a linear congruential generator lcg(i) having parameters $ m_{lcg} = 2147483563, a_{lcg} = 40014, c_{lcg} = 0, and lcg(0) = value $, sets $ x_{-r} ots x_{-1} $ to $ lcg(1) ots lcg(r) $ respectively. If $ x_{-1} = 0 $ set carry to 1, otherwise sets carry to 0.
Definition at line 537 of file bits/random.tcc.
Referenced by std::subtract_with_carry_engine< _UIntType, __w, __s, __r >::subtract_with_carry_engine().
Inserts the current state of a % subtract_with_carry_engine random number generator engine __x into the output stream __os.
Parameters
Returns
Compares two % subtract_with_carry_engine random number generator objects of the same type for equality.
Parameters
Returns
Definition at line 805 of file random.h.
Extracts the current state of a % subtract_with_carry_engine random number generator engine __x from the input stream __is.
Parameters
Returns
Definition at line 713 of file random.h.
Definition at line 712 of file random.h.
Definition at line 711 of file random.h.
Definition at line 710 of file random.h.
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| Thu Feb 16 2023 | libstdc++ |