std::random_device(3) Library Functions Manual std::random_device(3)

std::random_device

#include <random>


typedef unsigned int result_type


random_device (const random_device &)=delete
random_device (const std::string &__token)
double entropy () const noexcept
result_type operator() ()
void operator= (const random_device &)=delete


static constexpr result_type max ()
static constexpr result_type min ()

A standard interface to a platform-specific non-deterministic random number generator (if any are available).

Since

C++11

typedef unsigned int std::random_device::result_type

The type of the generated random value.

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libstdc++