libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/io.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: no-localization
  10
  11 // <random>
  12
  13 // template<class RealType = double>
  14 // class chi_squared_distribution
  15
  16 // template <class CharT, class Traits, class RealType>
  17 // basic_ostream<CharT, Traits>&
  18 // operator<<(basic_ostream<CharT, Traits>& os,
  19 //            const chi_squared_distribution<RealType>& x);
  20
  21 // template <class CharT, class Traits, class RealType>
  22 // basic_istream<CharT, Traits>&
  23 // operator>>(basic_istream<CharT, Traits>& is,
  24 //            chi_squared_distribution<RealType>& x);
  25
  26 #include <random>
  27 #include <sstream>
  28 #include <cassert>
  29
  30 #include "test_macros.h"
  31
  32 int main(int, char**)
  33 {
  34     {
  35         typedef std::chi_squared_distribution<> D;
  36         D d1(7);
  37         std::ostringstream os;
  38         os << d1;
  39         std::istringstream is(os.str());
  40         D d2;
  41         is >> d2;
  42         assert(d1 == d2);
  43     }
  44
  45   return 0;
  46 }