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std::seed_seq::seed_seq

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< cpp‎ | numeric‎ | random‎ | seed seq

 
 
Numéricos biblioteca
Funciones matemáticas comunes
Floating-point medio ambiente
Los números complejos
Matrices numéricas
Pseudo-aleatoria de generación de números
En tiempo de compilación aritmética racional (C++11)
Genéricos operaciones numéricas
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Pseudo-aleatoria de generación de números
Motores y adaptadores de motor
Original:
Engines and engine adaptors
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linear_congruential_engine(C++11)
mersenne_twister_engine(C++11)
subtract_with_carry_engine(C++11)
discard_block_engine(C++11)
independent_bits_engine(C++11)
shuffle_order_engine(C++11)
Generadores
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Generators
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random_device(C++11)
Distribuciones
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Distributions
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Distribuciones uniformes
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Uniform distributions
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uniform_int_distribution(C++11)
uniform_real_distribution(C++11)
generate_canonical(C++11)
Bernoulli distribuciones
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Bernoulli distributions
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bernoulli_distribution(C++11)
binomial_distribution(C++11)
negative_binomial_distribution(C++11)
geometric_distribution(C++11)
Poisson distribuciones
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Poisson distributions
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poisson_distribution(C++11)
exponential_distribution(C++11)
gamma_distribution(C++11)
weibull_distribution(C++11)
extreme_value_distribution(C++11)
Distribuciones normales
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Normal distributions
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normal_distribution(C++11)
lognormal_distribution(C++11)
chi_squared_distribution(C++11)
cauchy_distribution(C++11)
fisher_f_distribution(C++11)
student_t_distribution(C++11)
Distribuciones de muestreo
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Sampling distributions
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discrete_distribution(C++11)
piecewise_constant_distribution(C++11)
piecewise_linear_distribution(C++11)
Secuencias de semillas
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Seed Sequences
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seed_seq(C++11)
C biblioteca
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C library
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rand
srand
RAND_MAX
 
std::seed_seq
Las funciones miembro
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Member functions
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seed_seq::seed_seq
seed_seq::generate
seed_seq::size
seed_seq::param
 
seed_seq();
(1) (desde C++11)
seed_seq( const seed_seq& ) = delete;
(2) (desde C++11)
template< class InputIt >
seed_seq( InputIt begin, InputIt end );
(3) (desde C++11)
template< class T >
seed_seq( std::initializer_list<T> il );
(4) (desde C++11)
1)
El constructor predeterminado crea un objeto std::seed_seq con una secuencia inicial de la semilla de longitud cero .
Original:
The default constructor creates a std::seed_seq object with an initial seed sequence of length zero.
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2)
El constructor de copia se borra: std::seed_seq no es copiable .
Original:
The copy constructor is deleted: std::seed_seq is not copyable.
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3)
Construye un std::seed_seq con la secuencia inicial de la semilla obtenido iterando sobre el [begin, end) rango y la copia de los valores obtenidos por eliminación de referencias el iterador, modulo 232
(es decir, los 32 bits más bajos se copian)
Original:
Constructs a std::seed_seq with the initial seed sequence obtained by iterating over the range [begin, end) and copying the values obtained by dereferencing the iterator, modulo 232
(that is, the lower 32 bits are copied)
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4)
Equivalente a seed_seq(il.begin(), il.end()). Este constructor permite lista de inicialización .
Original:
Equivalent to seed_seq(il.begin(), il.end()). This constructor enables lista de inicialización.
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[editar] Parámetros

begin, end -
la secuencia inicial de la semilla representa como un par de iteradores de entrada cuyo std::iterator_traits<>::value_type es un tipo entero
Original:
the initial seed sequence represented as a pair of input iterators whose std::iterator_traits<>::value_type is an integer type
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il -
std::initializer_list de objetos de tipo entero, proporcionando la secuencia de semillas iniial
Original:
std::initializer_list of objects of integer type, providing the iniial seed sequence
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Type requirements
-
InputIt must meet the requirements of InputIterator.

[editar] Ejemplo

#include <random>
#include <sstream>
#include <iterator>
int main()
{
    std::seed_seq s1; // default-constructible
    std::seed_seq s2{1, 2, 3}; // can use list-initialization
    std::seed_seq s3 = {-1, 0, 1}; // another form of list-initialization
    int a[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    std::seed_seq s4(a, a + 10); // can use iterators
    std::istringstream buf("1 2 3 4 5"); 
    std::istream_iterator<int> beg(buf), end;
    std::seed_seq s5(beg, end); // even stream input iterators
}