dd the Hoyt and the arcsine distributions as extensions.

From-SVN: r192403

libstdc++-v3/include/ext/random.tcc

@@ -1015,6 +1015,178 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       return __is;
     }
 
+
+  template<typename _RealType>
+    template<typename _OutputIterator,
+	     typename _UniformRandomNumberGenerator>
+      void
+      arcsine_distribution<_RealType>::
+      __generate_impl(_OutputIterator __f, _OutputIterator __t,
+		      _UniformRandomNumberGenerator& __urng,
+		      const param_type& __p)
+      {
+	__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator>)
+
+	result_type __dif = __p.b() - __p.a();
+	result_type __sum = __p.a() + __p.b();
+	while (__f != __t)
+	  {
+	    result_type __x = std::sin(this->_M_ud(__urng));
+	    *__f++ = (__x * __dif + __sum) / result_type(2);
+	  }
+      }
+
+  template<typename _RealType, typename _CharT, typename _Traits>
+    std::basic_ostream<_CharT, _Traits>&
+    operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+	       const arcsine_distribution<_RealType>& __x)
+    {
+      typedef std::basic_ostream<_CharT, _Traits>  __ostream_type;
+      typedef typename __ostream_type::ios_base    __ios_base;
+
+      const typename __ios_base::fmtflags __flags = __os.flags();
+      const _CharT __fill = __os.fill();
+      const std::streamsize __precision = __os.precision();
+      const _CharT __space = __os.widen(' ');
+      __os.flags(__ios_base::scientific | __ios_base::left);
+      __os.fill(__space);
+      __os.precision(std::numeric_limits<_RealType>::max_digits10);
+
+      __os << __x.a() << __space << __x.b();
+      __os << __space << __x._M_ud;
+
+      __os.flags(__flags);
+      __os.fill(__fill);
+      __os.precision(__precision);
+      return __os;
+    }
+
+  template<typename _RealType, typename _CharT, typename _Traits>
+    std::basic_istream<_CharT, _Traits>&
+    operator>>(std::basic_istream<_CharT, _Traits>& __is,
+	       arcsine_distribution<_RealType>& __x)
+    {
+      typedef std::basic_istream<_CharT, _Traits>  __istream_type;
+      typedef typename __istream_type::ios_base    __ios_base;
+
+      const typename __ios_base::fmtflags __flags = __is.flags();
+      __is.flags(__ios_base::dec | __ios_base::skipws);
+
+      _RealType __a, __b;
+      __is >> __a >> __b;
+      __is >> __x._M_ud;
+      __x.param(typename arcsine_distribution<_RealType>::
+		param_type(__a, __b));
+
+      __is.flags(__flags);
+      return __is;
+    }
+
+
+  template<typename _RealType>
+    template<typename _UniformRandomNumberGenerator>
+      typename hoyt_distribution<_RealType>::result_type
+      hoyt_distribution<_RealType>::
+      operator()(_UniformRandomNumberGenerator& __urng)
+      {
+	result_type __x = this->_M_ad(__urng);
+	result_type __y = this->_M_ed(__urng);
+	return (result_type(2) * this->q()
+		  / (result_type(1) + this->q() * this->q()))
+	       * std::sqrt(this->omega() * __x * __y);
+      }
+
+  template<typename _RealType>
+    template<typename _UniformRandomNumberGenerator>
+      typename hoyt_distribution<_RealType>::result_type
+      hoyt_distribution<_RealType>::
+      operator()(_UniformRandomNumberGenerator& __urng,
+		 const param_type& __p)
+      {
+	result_type __q2 = __p.q() * __p.q();
+	result_type __num = result_type(0.5L) * (result_type(1) + __q2);
+	typename __gnu_cxx::arcsine_distribution<result_type>::param_type
+	  __pa(__num, __num / __q2);
+	result_type __x = this->_M_ad(__pa, __urng);
+	result_type __y = this->_M_ed(__urng);
+	return (result_type(2) * __p.q() / (result_type(1) + __q2))
+	       * std::sqrt(__p.omega() * __x * __y);
+      }
+
+  template<typename _RealType>
+    template<typename _OutputIterator,
+	     typename _UniformRandomNumberGenerator>
+      void
+      hoyt_distribution<_RealType>::
+      __generate_impl(_OutputIterator __f, _OutputIterator __t,
+		      _UniformRandomNumberGenerator& __urng,
+		      const param_type& __p)
+      {
+	__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator>)
+
+	result_type __2q = result_type(2) * __p.q();
+	result_type __q2 = __p.q() * __p.q();
+	result_type __q2p1 = result_type(1) + __q2;
+	result_type __num = result_type(0.5L) * __q2p1;
+	result_type __omega = __p.omega();
+	typename __gnu_cxx::arcsine_distribution<result_type>::param_type
+	  __pa(__num, __num / __q2);
+	while (__f != __t)
+	  {
+	    result_type __x = this->_M_ad(__pa, __urng);
+	    result_type __y = this->_M_ed(__urng);
+	    *__f++ = (__2q / __q2p1) * std::sqrt(__omega * __x * __y);
+	  }
+      }
+
+  template<typename _RealType, typename _CharT, typename _Traits>
+    std::basic_ostream<_CharT, _Traits>&
+    operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+	       const hoyt_distribution<_RealType>& __x)
+    {
+      typedef std::basic_ostream<_CharT, _Traits>  __ostream_type;
+      typedef typename __ostream_type::ios_base    __ios_base;
+
+      const typename __ios_base::fmtflags __flags = __os.flags();
+      const _CharT __fill = __os.fill();
+      const std::streamsize __precision = __os.precision();
+      const _CharT __space = __os.widen(' ');
+      __os.flags(__ios_base::scientific | __ios_base::left);
+      __os.fill(__space);
+      __os.precision(std::numeric_limits<_RealType>::max_digits10);
+
+      __os << __x.q() << __space << __x.omega();
+      __os << __space << __x._M_ad;
+      __os << __space << __x._M_ed;
+
+      __os.flags(__flags);
+      __os.fill(__fill);
+      __os.precision(__precision);
+      return __os;
+    }
+
+  template<typename _RealType, typename _CharT, typename _Traits>
+    std::basic_istream<_CharT, _Traits>&
+    operator>>(std::basic_istream<_CharT, _Traits>& __is,
+	       hoyt_distribution<_RealType>& __x)
+    {
+      typedef std::basic_istream<_CharT, _Traits>  __istream_type;
+      typedef typename __istream_type::ios_base    __ios_base;
+
+      const typename __ios_base::fmtflags __flags = __is.flags();
+      __is.flags(__ios_base::dec | __ios_base::skipws);
+
+      _RealType __q, __omega;
+      __is >> __q >> __omega;
+      __is >> __x._M_ad;
+      __is >> __x._M_ed;
+      __x.param(typename hoyt_distribution<_RealType>::
+		param_type(__q, __omega));
+
+      __is.flags(__flags);
+      return __is;
+    }
+
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
 

libstdc++-v3/testsuite/ext/random/arcsine_distribution/cons/default.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::arcsine_distribution<> u;
+  VERIFY( u.a() == 0.0 );
+  VERIFY( u.b() == 1.0 );
+  VERIFY( u.min() == 0.0 );
+  VERIFY( u.max() == 1.0 );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/arcsine_distribution/cons/parms.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::arcsine_distribution<> u(-1.5, 3.0);
+  VERIFY( u.a() == -1.5 );
+  VERIFY( u.b() == 3.0 );
+  VERIFY( u.min() == -1.5 );
+  VERIFY( u.max() == 3.0 );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/arcsine_distribution/operators/equal.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::arcsine_distribution<double> u(-2.0, 3.0), v, w;
+
+  VERIFY( v == w );
+  VERIFY( !(u == v) );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/arcsine_distribution/operators/inequal.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::arcsine_distribution<double> u(-2.0, 3.0), v, w;
+
+  VERIFY( u != v );
+  VERIFY( !(v != w) );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/arcsine_distribution/operators/serialize.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::stringstream str;
+  __gnu_cxx::arcsine_distribution<double> u(-1.5, 3.0), v;
+  std::minstd_rand0 rng;
+
+  u(rng); // advance
+  str << u;
+
+  str >> v;
+  VERIFY( u == v );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/arcsine_distribution/requirements/explicit_instantiation/1.cc

+// { dg-do compile }
+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+
+template class __gnu_cxx::arcsine_distribution<float>;
+template class __gnu_cxx::arcsine_distribution<double>;
+template class __gnu_cxx::arcsine_distribution<long double>;

libstdc++-v3/testsuite/ext/random/arcsine_distribution/requirements/typedefs.cc

+// { dg-do compile }
+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+
+void
+test01()
+{
+  typedef __gnu_cxx::arcsine_distribution<double> test_type;
+
+  typedef test_type::result_type result_type;
+  typedef test_type::param_type param_type;
+}

libstdc++-v3/testsuite/ext/random/hoyt_distribution/cons/default.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::hoyt_distribution<> u;
+  VERIFY( u.q() == 0.5 );
+  VERIFY( u.omega() == 1.0 );
+  VERIFY( u.min() == 0.0 );
+  typedef __gnu_cxx::hoyt_distribution<>::result_type result_type;
+  VERIFY( u.max() == std::numeric_limits<result_type>::max() );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/hoyt_distribution/cons/parms.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::hoyt_distribution<> u(0.05, 3.0);
+  VERIFY( u.q() == 0.05 );
+  VERIFY( u.omega() == 3.0 );
+  VERIFY( u.min() == 0.0 );
+  typedef __gnu_cxx::hoyt_distribution<>::result_type result_type;
+  VERIFY( u.max() == std::numeric_limits<result_type>::max() );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/hoyt_distribution/operators/equal.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::hoyt_distribution<double> u(0.05, 3.0), v, w;
+
+  VERIFY( v == w );
+  VERIFY( !(u == v) );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/hoyt_distribution/operators/inequal.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  __gnu_cxx::hoyt_distribution<double> u(0.05, 3.0), v, w;
+
+  VERIFY( u != v );
+  VERIFY( !(v != w) );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/hoyt_distribution/operators/serialize.cc

+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+void
+test01()
+{
+  bool test __attribute__((unused)) = true;
+
+  std::stringstream str;
+  __gnu_cxx::hoyt_distribution<double> u(0.05, 3.0), v;
+  std::minstd_rand0 rng;
+
+  u(rng); // advance
+  str << u;
+
+  str >> v;
+  VERIFY( u == v );
+}
+
+int
+main()
+{
+  test01();
+  return 0;
+}

libstdc++-v3/testsuite/ext/random/hoyt_distribution/requirements/explicit_instantiation/1.cc

+// { dg-do compile }
+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+
+template class __gnu_cxx::hoyt_distribution<float>;
+template class __gnu_cxx::hoyt_distribution<double>;
+template class __gnu_cxx::hoyt_distribution<long double>;

libstdc++-v3/testsuite/ext/random/hoyt_distribution/requirements/typedefs.cc

+// { dg-do compile }
+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// 2012-10-12  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+//
+// Copyright (C) 2012 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/>.
+
+#include <ext/random>
+
+void
+test01()
+{
+  typedef __gnu_cxx::hoyt_distribution<double> test_type;
+
+  typedef test_type::result_type result_type;
+  typedef test_type::param_type param_type;
+}