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

public member function

<random>

explicit extreme_value_distribution ( result_type a = 0.0, result_type b = 1.0 );

explicit extreme_value_distribution ( const param_type& parm );

Construct extreme value distribution

a

Distribution parameter a, which defines the location (shift) of the distribution.
result_type is a member type that represents the type of the random numbers generated on each call to operator(). It is defined as an alias of the first class template parameter (RealType).

b

Distribution parameter b, which defines the scale of the distribution.
This shall be a positive value (b>0).
result_type is a member type that represents the type of the random numbers generated on each call to operator(). It is defined as an alias of the first class template parameter (RealType).

parm

An object representing the distribution's parameters, obtained by a call to member function param.
param_type is a member type.

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// extreme_value_distribution example
#include <iostream>
#include <chrono>
#include <random>

int main()
{
  // construct a trivial random generator engine from a time-based seed:
  unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
  std::default_random_engine generator (seed);

  std::extreme_value_distribution<double> distribution (0.0,1.0);

  std::cout << "some extreme value-distributed(0.0,1.0) results:" << std::endl;
  for (int i=0; i<10; ++i)
    std::cout << distribution(generator) << std::endl;

  return 0;
}

some extreme value-distributed(0.0,1.0) results:
0.908025
-0.258103
0.780405
-0.595635
-0.770574
2.85371
-1.06437
-0.014265
-0.873724
-0.153498

extreme_value_distribution::reset

Reset distribution (public member function)

extreme_value_distribution::param

Distribution parameters (public member function)

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