std::generate_canonical

 

C++

Lenguaje

Cabeceras

Conceptos

Biblioteca de utilidades

Biblioteca de cadenas

Biblioteca de contenedores

Biblioteca de algoritmos

Biblioteca de iteradores

Biblioteca numérica

Biblioteca de entrada/salida

Biblioteca de localización

Biblioteca de expresiones regulares (C++11)

Biblioteca de operaciones atómicas (C++11)

Biblioteca de tareas/subprocesos (C++11)

 

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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 Original: Generators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

random_device (C++11)

Distribuciones Original: Distributions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Distribuciones uniformes Original: Uniform distributions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

uniform_int_distribution (C++11)

uniform_real_distribution (C++11)

generate_canonical (C++11)

Bernoulli distribuciones Original: Bernoulli distributions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bernoulli_distribution (C++11)

binomial_distribution (C++11)

negative_binomial_distribution (C++11)

geometric_distribution (C++11)

Poisson distribuciones Original: Poisson distributions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

poisson_distribution (C++11)

exponential_distribution (C++11)

gamma_distribution (C++11)

weibull_distribution (C++11)

extreme_value_distribution (C++11)

Distribuciones normales Original: Normal distributions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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 Original: Sampling distributions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

discrete_distribution (C++11)

piecewise_constant_distribution (C++11)

piecewise_linear_distribution (C++11)

Secuencias de semillas Original: Seed Sequences The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

seed_seq (C++11)

C biblioteca Original: C library The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

rand

srand

RAND_MAX

 

template< class RealType, size_t bits, class Generator > RealType generate_canonical( Generator& g );		(desde C++11)

Genera un número aleatorio en coma flotante en el rango [0; 1) .

Original:

Generates a random floating point number in range [0; 1).

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

g() se llama tantas veces como sea necesario para generar suficiente entropía, es decir, a veces menos max(1, ⌈ min(b
1, b
2) / log
2 R ⌉), donde

Original:

g() is called as many times as needed to generate enough entropy, i.e. at least max(1, ⌈ min(b
1, b
2) / log
2 R ⌉) times, where

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

• b1 = std::numeric_limits<RealType>::digits
• b2 = std::numeric_limits<RealType>::bits
• R = g.max() - g.min() + 1.

Parámetros

g

-

generador de usar para adquirir la entropía Original: generator to use to acquire entropy The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

Valor de punto flotante en el rango [0; 1) .

Original:

Floating point value in range [0; 1).

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Excepciones

Ninguno excepto de aquellos arrojados por g

Original:

None except from those thrown by g

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Ejemplo

producir números aleatorios con 10 bits de aleatoriedad: esto puede producir solamente 1024 valores distintos

Original:

produce random numbers with 10 bits of randomness: this may produce only 1024 distinct values

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

#include <random>
#include <iostream>
 
int main()
{
    std::random_device rd;
    std::mt19937 gen(rd());
    for(int n=0; n<10; ++n) {
        std::cout << std::generate_canonical<double, 10>(gen) << ' ';
    }
}

Output:

0.208143 0.824147 0.0278604 0.343183 0.0173263 0.864057 0.647037 0.539467 0.0583497 0.609219

Ver también

uniform_real_distribution (C++11)	produce valores reales distribuidos uniformemente a través de un rango Original: produces real values evenly distributed across a range The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (clase de plantilla)