xref: /llvm-project/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/io.pass.cpp (revision fb855eb941b6d740cc6560297d0b4d3201dcaf9f)

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: no-localization

// <random>

// template<class RealType = double>
// class piecewise_constant_distribution

// template <class charT, class traits>
// basic_ostream<charT, traits>&
// operator<<(basic_ostream<charT, traits>& os,
//            const piecewise_constant_distribution& x);
//
// template <class charT, class traits>
// basic_istream<charT, traits>&
// operator>>(basic_istream<charT, traits>& is,
//            piecewise_constant_distribution& x);

#include <random>
#include <sstream>
#include <cassert>

#include "test_macros.h"

int main(int, char**)
{
    {
        typedef std::piecewise_constant_distribution<> D;
        double b[] = {10, 14, 16, 17};
        double p[] = {25, 62.5, 12.5};
        const std::size_t Np = sizeof(p) / sizeof(p[0]);
        D d1(b, b+Np+1, p);
        std::ostringstream os;
        os << d1;
        std::istringstream is(os.str());
        D d2;
        is >> d2;
        assert(d1 == d2);
    }

  return 0;
}