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Showing content from https://cplusplus.com/reference/random/independent_bits_engine/seed/ below:

public member function

<random>

void seed();

void seed (result_type val);

template <class Sseq>void seed (Sseq& q);

Seed base engine

val

A seeding value. This value is passed to the base engine's constructor.
result_type is a member type, defined as an alias of the type of elements produced by base.

q

A seed sequence object, such as an object of type seed_seq.
Sseq shall be a seed sequence class, with a generate member function.

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// independent_bits_engine::seed example
#include <iostream>
#include <chrono>
#include <cstdint>
#include <random>

int main ()
{
  typedef std::chrono::high_resolution_clock myclock;
  myclock::time_point beginning = myclock::now();

  // obtain a seed from a user string:
  std::string str;
  std::cout << "Please, enter a seed: ";
  std::getline(std::cin,str);
  std::seed_seq seed1 (str.begin(),str.end());

  // obtain a seed from the timer
  myclock::duration d = myclock::now() - beginning;
  unsigned seed2 = d.count();

  std::independent_bits_engine<std::mt19937,64,std::uint_fast64_t> generator (seed1);
  std::cout << "Your seed produced: " << generator() << std::endl;

  generator.seed (seed2);
  std::cout << "A time seed produced: " << generator() << std::endl;

  return 0;
}

Please, enter a seed: give me numbers
Your seed produced: 8733447681123360525
A time seed produced: 8954499881567149160

independent_bits_engine::(constructor)

Construct independent-bits engine (public member function)

seed_seq

Seed sequence (class)

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