Subversion Repositories openrisc_2011-10-31

// { dg-options "-std=c++0x" }

// { dg-require-cstdint "" }

//

// 2008-12-03  Edward M. Smith-Rowland <3dw4rd@verizon.net>

//

// Copyright (C) 2008, 2009 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

//

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

// 26.4.8.5.3 Class template piecewise_linear_distribution [rand.dist.samp.plinear]

// 26.4.2.4 Concept RandomNumberDistribution [rand.concept.dist]

#include <random>

#include <testsuite_hooks.h>

void

test01()

{

  bool test __attribute__((unused)) = true;

  std::vector<double> x = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0};

  std::vector<double> wt = {0.0, 1.0, 2.5, 1.5, 3.5, 0.0};

  std::piecewise_linear_distribution<> u(x.begin(), x.end(), wt.begin());

  std::vector<double> interval = u.intervals();

  std::vector<double> density = u.densities();

  VERIFY( interval.size() == 6 );

  VERIFY( interval[0] == 0.0 );

  VERIFY( interval[5] == 5.0 );

  VERIFY( density.size() == 6 );

  VERIFY( density[0] == 0.0 );

  VERIFY( density[4] == 3.5 / 8.5 );

}

int main()

{

  test01();

  return 0;

}