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#include <iostream>
#include <random>
#include <ctime>
#include <functional>
using namespace std;
template <typename RNG>
struct rng
{
typedef typename RNG::result_type result_type;
RNG &d_rng;
result_type d_min;
result_type d_max;
result_type d_oldmin;
double d_slope;
rng(RNG &rg, result_type min = 0, result_type max = result_type(100))
:
d_rng(rg),
d_min(min),
d_max(max),
d_oldmin(rg.min()),
d_slope((d_max - static_cast<double>(d_min)) / (rg.max() - d_oldmin))
{
// cout << d_min << " " << d_max << " " << d_oldmin << " " << d_slope <<
// " " << rg.max() << '\n' << '\n';
}
result_type operator()()
{
return d_min + d_slope * (d_rng() - d_oldmin);
}
};
int main()
{
std::mt19937 mt; //(time(0));
rng<std::mt19937> rg(mt, 1, 100);
// bernoulli_distribution bd;
// binomial_distribution<> bd; // N.A.
// gamma_distribution<> bd; // N.A.
// geometric_distribution<> bd;
// exponential_distribution<> bd;
// normal_distribution<> bd; // N.A.
// poisson_distribution<> bd; // N.A.
uniform_real<> bd;
for (int idx = 0; idx < 20; ++idx)
cout << bd(rg) << (idx + 1 == 10 ? '\n' : ' ');
cout << '\n';
}
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