libcxx/test/std/numerics/rand/rand.dis/rand.dist.samp/rand.dist.samp.discrete/ctor_param.pass.cpp


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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <random>

// template<class IntType = int>
// class discrete_distribution

// explicit discrete_distribution(const param_type& parm);

#include <random>
#include <cassert>

#include "test_macros.h"

int main(int, char**)
{
    {
        typedef std::discrete_distribution<> D;
        typedef D::param_type P;
        double p0[] = {10, 30};
        P pa(p0, p0+2);
        D d(pa);
        std::vector<double> p = d.probabilities();
        assert(p.size() == 2);
        assert(p[0] == 0.25);
        assert(p[1] == 0.75);
    }

  return 0;
}