std::random_device::operator()

 

C++

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Numerics library

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Non-deterministic generator

random_device (C++11)

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normal_distribution (C++11)

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discrete_distribution (C++11)

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Seed Sequences

seed_seq (C++11)

C library

rand

srand

RAND_MAX

 

std::random_device

Member functions

random_device::random_device

Generation

random_device::operator()

Characteristics

random_device::entropy

random_device::min

random_device::max

 

result_type operator()();		(since C++11)

Generates a non-deterministic uniformly-distributed random value.

Parameters

(none)

Return value

A random number uniformly distributed in [min(), max()].

Exceptions

Throws an implementation-defined exception derived from std::exception if a random number could not be generated.

See also

min [static]	gets the smallest possible value in the output range (public static member function)
max [static]	gets the largest possible value in the output range (public static member function)