Add math constants and triangular and von Mises distributions.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@196407 138bc75d-0d04-0410-961f-82ee72b054a4

20 files changed, 1430 insertions, 17 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index eae75170811..cbba5e21e29 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,41 @@
+2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+
+	Add triangular and von Mises distributions.
+	* include/ext/random: Include <ext/cmath>.
+	Add __gnu_cxx::triangular_distribution<> and
+	__gnu_cxx::von_mises_distribution<> classes.
+	* include/ext/random.tcc: Add out-of-line functions for
+	__gnu_cxx::triangular_distribution<> and
+	__gnu_cxx::von_mises_distribution<>.
+	* testsuite/ext/triangular_distribution/cons/default.cc: New file.
+	* testsuite/ext/triangular_distribution/cons/parms.cc: New file.
+	* testsuite/ext/triangular_distribution/operators/serialize.cc:
+	New file.
+	* testsuite/ext/triangular_distribution/operators/equal.cc:
+	New file.
+	* testsuite/ext/triangular_distribution/operators/inequal.cc:
+	New file.
+	* testsuite/ext/triangular_distribution/requirements/typedefs.cc:
+	New file.
+	* testsuite/ext/triangular_distribution/requirements/
+	explicit_instantiation/1.cc: New file.
+	* testsuite/ext/von_mises_distribution/cons/default.cc: New file.
+	* testsuite/ext/von_mises_distribution/cons/parms.cc: New file.
+	* testsuite/ext/von_mises_distribution/operators/serialize.cc:
+	New file.
+	* testsuite/ext/von_mises_distribution/operators/equal.cc: New file.
+	* testsuite/ext/von_mises_distribution/operators/inequal.cc:
+	New file.
+	* testsuite/ext/von_mises_distribution/requirements/typedefs.cc:
+	New file.
+	* testsuite/ext/von_mises_distribution/requirements/
+	explicit_instantiation/1.cc: New file.
+
+	Add math constants.
+	* include/Makefile.am (ext_headers): Add cmath.
+	* include/Makefile.in: Regenerated.
+	* include/ext/cmath: New file.
+
 2013-03-01  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* config/abi/post/solaris2.9/baseline_symbols.txt: Regenerate.
diff --git a/libstdc++-v3/include/Makefile.am b/libstdc++-v3/include/Makefile.am
index 9cafafaaedb..53422177444 100644
--- a/libstdc++-v3/include/Makefile.am
+++ b/libstdc++-v3/include/Makefile.am
@@ -499,6 +499,7 @@ ext_headers = \
 	${ext_srcdir}/array_allocator.h \
 	${ext_srcdir}/bitmap_allocator.h \
 	${ext_srcdir}/cast.h \
+	${ext_srcdir}/cmath \
 	${ext_srcdir}/codecvt_specializations.h \
 	${ext_srcdir}/concurrence.h \
 	${ext_srcdir}/debug_allocator.h \
diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in
index 4b0687244e5..30d90968a81 100644
--- a/libstdc++-v3/include/Makefile.in
+++ b/libstdc++-v3/include/Makefile.in
@@ -1,9 +1,9 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# Makefile.in generated by automake 1.11.6 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+# Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -15,6 +15,23 @@
 
 @SET_MAKE@
 VPATH = @srcdir@
+am__make_dryrun = \
+  { \
+    am__dry=no; \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        echo 'am--echo: ; @echo "AM"  OK' | $(MAKE) -f - 2>/dev/null \
+          | grep '^AM OK$$' >/dev/null || am__dry=yes;; \
+      *) \
+        for am__flg in $$MAKEFLAGS; do \
+          case $$am__flg in \
+            *=*|--*) ;; \
+            *n*) am__dry=yes; break;; \
+          esac; \
+        done;; \
+    esac; \
+    test $$am__dry = yes; \
+  }
 pkgdatadir = $(datadir)/@PACKAGE@
 pkgincludedir = $(includedir)/@PACKAGE@
 pkglibdir = $(libdir)/@PACKAGE@
@@ -67,6 +84,11 @@ CONFIG_CLEAN_VPATH_FILES =
 depcomp =
 am__depfiles_maybe =
 SOURCES =
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
 ABI_TWEAKS_SRCDIR = @ABI_TWEAKS_SRCDIR@
 ACLOCAL = @ACLOCAL@
 ALLOCATOR_H = @ALLOCATOR_H@
@@ -759,6 +781,7 @@ ext_headers = \
 	${ext_srcdir}/array_allocator.h \
 	${ext_srcdir}/bitmap_allocator.h \
 	${ext_srcdir}/cast.h \
+	${ext_srcdir}/cmath \
 	${ext_srcdir}/codecvt_specializations.h \
 	${ext_srcdir}/concurrence.h \
 	${ext_srcdir}/debug_allocator.h \
@@ -1191,6 +1214,7 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
 	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
 	esac;
+$(top_srcdir)/fragment.am:
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
@@ -1226,10 +1250,15 @@ install-am: all-am
 
 installcheck: installcheck-am
 install-strip:
-	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-	  `test -z '$(STRIP)' || \
-	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
 mostlyclean-generic:
 
 clean-generic:
diff --git a/libstdc++-v3/include/ext/cmath b/libstdc++-v3/include/ext/cmath
new file mode 100644
index 00000000000..c17a53f1b10
--- /dev/null
+++ b/libstdc++-v3/include/ext/cmath
@@ -0,0 +1,152 @@
+// Math extensions -*- C++ -*-
+
+// Copyright (C) 2013 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.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file ext/cmath
+ *  This file is a GNU extension to the Standard C++ Library.
+ */
+
+#ifndef _EXT_CMATH
+#define _EXT_CMATH 1
+
+#pragma GCC system_header
+
+#if __cplusplus < 201103L
+# include <bits/c++0x_warning.h>
+#else
+
+#include <cmath>
+#include <type_traits>
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  // A class for math constants.
+  template<typename _RealType>
+    struct __math_constants
+    {
+      static_assert(std::is_floating_point<_RealType>::value,
+		    "template argument not a floating point type");
+
+      // Constant @f$ \pi @f$.
+      static constexpr _RealType __pi = 3.1415926535897932384626433832795029L;
+      // Constant @f$ \pi / 2 @f$.
+      static constexpr _RealType __pi_half = 1.5707963267948966192313216916397514L;
+      // Constant @f$ \pi / 3 @f$.
+      static constexpr _RealType __pi_third = 1.0471975511965977461542144610931676L;
+      // Constant @f$ \pi / 4 @f$.
+      static constexpr _RealType __pi_quarter = 0.7853981633974483096156608458198757L;
+      // Constant @f$ \sqrt(\pi / 2) @f$.
+      static constexpr _RealType __root_pi_div_2 = 1.2533141373155002512078826424055226L;
+      // Constant @f$ 1 / \pi @f$.
+      static constexpr _RealType __one_div_pi = 0.3183098861837906715377675267450287L;
+      // Constant @f$ 2 / \pi @f$.
+      static constexpr _RealType __two_div_pi = 0.6366197723675813430755350534900574L;
+      // Constant @f$ 2 / \sqrt(\pi) @f$.
+      static constexpr _RealType __two_div_root_pi = 1.1283791670955125738961589031215452L;
+
+      // Constant Euler's number @f$ e @f$.
+      static constexpr _RealType __e = 2.7182818284590452353602874713526625L;
+      // Constant @f$ 1 / e @f$.
+      static constexpr _RealType __one_div_e = 0.36787944117144232159552377016146087L;
+      // Constant @f$ \log_2(e) @f$.
+      static constexpr _RealType __log2_e = 1.4426950408889634073599246810018921L;
+      // Constant @f$ \log_10(e) @f$.
+      static constexpr _RealType __log10_e = 0.4342944819032518276511289189166051L;
+      // Constant @f$ \ln(2) @f$.
+      static constexpr _RealType __ln_2 = 0.6931471805599453094172321214581766L;
+      // Constant @f$ \ln(3) @f$.
+      static constexpr _RealType __ln_3 = 1.0986122886681096913952452369225257L;
+      // Constant @f$ \ln(10) @f$.
+      static constexpr _RealType __ln_10 = 2.3025850929940456840179914546843642L;
+
+      // Constant Euler-Mascheroni @f$ \gamma_E @f$.
+      static constexpr _RealType __gamma_e = 0.5772156649015328606065120900824024L;
+      // Constant Golden Ratio @f$ \phi @f$.
+      static constexpr _RealType __phi = 1.6180339887498948482045868343656381L;
+
+      // Constant @f$ \sqrt(2) @f$.
+      static constexpr _RealType __root_2 = 1.4142135623730950488016887242096981L;
+      // Constant @f$ \sqrt(3) @f$.
+      static constexpr _RealType __root_3 = 1.7320508075688772935274463415058724L;
+      // Constant @f$ \sqrt(5) @f$.
+      static constexpr _RealType __root_5 = 2.2360679774997896964091736687312762L;
+      // Constant @f$ \sqrt(7) @f$.
+      static constexpr _RealType __root_7 = 2.6457513110645905905016157536392604L;
+      // Constant @f$ 1 / \sqrt(2) @f$.
+      static constexpr _RealType __one_div_root_2 = 0.7071067811865475244008443621048490L;
+    };
+
+  // And the template definitions for the constants.
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__pi;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__pi_half;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__pi_third;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__pi_quarter;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__root_pi_div_2;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__one_div_pi;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__two_div_pi;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__two_div_root_pi;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__e;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__one_div_e;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__log2_e;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__log10_e;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__ln_2;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__ln_3;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__ln_10;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__gamma_e;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__phi;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__root_2;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__root_3;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__root_5;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__root_7;
+  template<typename _RealType>
+    constexpr _RealType __math_constants<_RealType>::__one_div_root_2;
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace __gnu_cxx
+
+#endif // C++11
+
+#endif // _EXT_CMATH
diff --git a/libstdc++-v3/include/ext/random b/libstdc++-v3/include/ext/random
index d76c7d3efd6..51d332b4c40 100644
--- a/libstdc++-v3/include/ext/random
+++ b/libstdc++-v3/include/ext/random
@@ -37,6 +37,7 @@
 
 #include <random>
 #include <array>
+#include <ext/cmath>
 #ifdef __SSE2__
 # include <x86intrin.h>
 #endif
@@ -958,7 +959,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	friend bool
 	operator==(const param_type& __p1, const param_type& __p2)
 	{ return __p1._M_nu == __p2._M_nu
-              && __p1._M_sigma == __p2._M_sigma; }
+	      && __p1._M_sigma == __p2._M_sigma; }
 
       private:
 	void _M_initialize();
@@ -1055,7 +1056,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	result_type
 	operator()(_UniformRandomNumberGenerator& __urng,
 		   const param_type& __p)
-        {
+	{
 	  typename std::normal_distribution<result_type>::param_type
 	    __px(__p.nu(), __p.sigma()), __py(result_type(0), __p.sigma());
 	  result_type __x = this->_M_ndx(__px, __urng);
@@ -1200,7 +1201,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	friend bool
 	operator==(const param_type& __p1, const param_type& __p2)
 	{ return __p1._M_mu == __p2._M_mu
-              && __p1._M_omega == __p2._M_omega; }
+	      && __p1._M_omega == __p2._M_omega; }
 
       private:
 	void _M_initialize();
@@ -1284,7 +1285,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	result_type
 	operator()(_UniformRandomNumberGenerator& __urng,
 		   const param_type& __p)
-        {
+	{
 	  typename std::gamma_distribution<result_type>::param_type
 	    __pg(__p.mu(), __p.omega() / __p.mu());
 	  return std::sqrt(this->_M_gd(__pg, __urng));
@@ -1521,7 +1522,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	result_type
 	operator()(_UniformRandomNumberGenerator& __urng,
 		   const param_type& __p)
-        {
+	{
 	  return __p.mu() * std::pow(this->_M_ud(__urng),
 					   -result_type(1) / __p.alpha());
 	}
@@ -1673,7 +1674,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	friend bool
 	operator==(const param_type& __p1, const param_type& __p2)
 	{ return __p1._M_lambda == __p2._M_lambda
-              && __p1._M_mu == __p2._M_mu
+	      && __p1._M_mu == __p2._M_mu
 	      && __p1._M_nu == __p2._M_nu; }
 
       private:
@@ -1921,14 +1922,14 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 			   result_type __b = result_type(1))
       : _M_param(__a, __b),
 	_M_ud(-1.5707963267948966192313216916397514L,
- 	      +1.5707963267948966192313216916397514L)
+	      +1.5707963267948966192313216916397514L)
       { }
 
       explicit
       arcsine_distribution(const param_type& __p)
       : _M_param(__p),
 	_M_ud(-1.5707963267948966192313216916397514L,
- 	      +1.5707963267948966192313216916397514L)
+	      +1.5707963267948966192313216916397514L)
       { }
 
       /**
@@ -1994,7 +1995,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	result_type
 	operator()(_UniformRandomNumberGenerator& __urng,
 		   const param_type& __p)
-        {
+	{
 	  result_type __x = std::sin(this->_M_ud(__urng));
 	  return (__x * (__p.b() - __p.a())
 		  + __p.a() + __p.b()) / result_type(2);
@@ -2142,7 +2143,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	friend bool
 	operator==(const param_type& __p1, const param_type& __p2)
 	{ return __p1._M_q == __p2._M_q
-              && __p1._M_omega == __p2._M_omega; }
+	      && __p1._M_omega == __p2._M_omega; }
 
       private:
 	void _M_initialize();
@@ -2322,6 +2323,528 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	       const hoyt_distribution<_RealType>& __d2)
     { return !(__d1 == __d2); }
 
+
+  /**
+   * @brief A triangular distribution for random numbers.
+   *
+   * The formula for the triangular probability density function is
+   * @f[
+   *                  / 0                          for x < a
+   *     p(x|a,b,c) = | \frac{2(x-a)}{(c-a)(b-a)}  for a <= x <= b
+   *                  | \frac{2(c-x)}{(c-a)(c-b)}  for b < x <= c
+   *                  \ 0                          for c < x
+   * @f]
+   *
+   * <table border=1 cellpadding=10 cellspacing=0>
+   * <caption align=top>Distribution Statistics</caption>
+   * <tr><td>Mean</td><td>@f$ \frac{a+b+c}{2} @f$</td></tr>
+   * <tr><td>Variance</td><td>@f$ \frac{a^2+b^2+c^2-ab-ac-bc}
+   *                                   {18}@f$</td></tr>
+   * <tr><td>Range</td><td>@f$[a, c]@f$</td></tr>
+   * </table>
+   */
+  template<typename _RealType = double>
+    class triangular_distribution
+    {
+      static_assert(std::is_floating_point<_RealType>::value,
+		    "template argument not a floating point type");
+
+    public:
+      /** The type of the range of the distribution. */
+      typedef _RealType result_type;
+      /** Parameter type. */
+      struct param_type
+      {
+	friend class triangular_distribution<_RealType>;
+
+	explicit
+	param_type(_RealType __a = _RealType(0),
+		   _RealType __b = _RealType(0.5),
+		   _RealType __c = _RealType(1))
+	: _M_a(__a), _M_b(__b), _M_c(__c)
+	{
+	  _GLIBCXX_DEBUG_ASSERT(_M_a <= _M_b);
+	  _GLIBCXX_DEBUG_ASSERT(_M_b <= _M_c);
+	  _GLIBCXX_DEBUG_ASSERT(_M_a < _M_c);
+
+	  _M_r_ab = (_M_b - _M_a) / (_M_c - _M_a);
+	  _M_f_ab_ac = (_M_b - _M_a) * (_M_c - _M_a);
+	  _M_f_bc_ac = (_M_c - _M_b) * (_M_c - _M_a);
+	}
+
+	_RealType
+	a() const
+	{ return _M_a; }
+
+	_RealType
+	b() const
+	{ return _M_b; }
+
+	_RealType
+	c() const
+	{ return _M_c; }
+
+	friend bool
+	operator==(const param_type& __p1, const param_type& __p2)
+	{ return (__p1._M_a == __p2._M_a && __p1._M_b == __p2._M_b
+		  && __p1._M_c == __p2._M_c); }
+
+      private:
+
+	_RealType _M_a;
+	_RealType _M_b;
+	_RealType _M_c;
+	_RealType _M_r_ab;
+	_RealType _M_f_ab_ac;
+	_RealType _M_f_bc_ac;
+      };
+
+      /**
+       * @brief Constructs a triangle distribution with parameters
+       * @f$ a @f$, @f$ b @f$ and @f$ c @f$.
+       */
+      explicit
+      triangular_distribution(result_type __a = result_type(0),
+			      result_type __b = result_type(0.5),
+			      result_type __c = result_type(1))
+      : _M_param(__a, __b, __c)
+      { }
+
+      explicit
+      triangular_distribution(const param_type& __p)
+      : _M_param(__p)
+      { }
+
+      /**
+       * @brief Resets the distribution state.
+       */
+      void
+      reset()
+      { }
+
+      /**
+       * @brief Returns the @f$ a @f$ of the distribution.
+       */
+      result_type
+      a() const
+      { return _M_param.a(); }
+
+      /**
+       * @brief Returns the @f$ b @f$ of the distribution.
+       */
+      result_type
+      b() const
+      { return _M_param.b(); }
+
+      /**
+       * @brief Returns the @f$ c @f$ of the distribution.
+       */
+      result_type
+      c() const
+      { return _M_param.c(); }
+
+      /**
+       * @brief Returns the parameter set of the distribution.
+       */
+      param_type
+      param() const
+      { return _M_param; }
+
+      /**
+       * @brief Sets the parameter set of the distribution.
+       * @param __param The new parameter set of the distribution.
+       */
+      void
+      param(const param_type& __param)
+      { _M_param = __param; }
+
+      /**
+       * @brief Returns the greatest lower bound value of the distribution.
+       */
+      result_type
+      min() const
+      { return _M_param._M_a; }
+
+      /**
+       * @brief Returns the least upper bound value of the distribution.
+       */
+      result_type
+      max() const
+      { return _M_param._M_c; }
+
+      /**
+       * @brief Generating functions.
+       */
+      template<typename _UniformRandomNumberGenerator>
+	result_type
+	operator()(_UniformRandomNumberGenerator& __urng)
+	{ return this->operator()(__urng, _M_param); }
+
+      template<typename _UniformRandomNumberGenerator>
+	result_type
+	operator()(_UniformRandomNumberGenerator& __urng,
+		   const param_type& __p)
+	{
+	  std::__detail::_Adaptor<_UniformRandomNumberGenerator, result_type>
+	    __aurng(__urng);
+	  result_type __rnd = __aurng();
+	  if (__rnd <= __p._M_r_ab)
+	    return __p.a() + std::sqrt(__rnd * __p._M_f_ab_ac);
+	  else
+	    return __p.c() - std::sqrt((result_type(1) - __rnd)
+				       * __p._M_f_bc_ac);
+	}
+
+      template<typename _ForwardIterator,
+	       typename _UniformRandomNumberGenerator>
+	void
+	__generate(_ForwardIterator __f, _ForwardIterator __t,
+		   _UniformRandomNumberGenerator& __urng)
+	{ this->__generate(__f, __t, __urng, _M_param); }
+
+      template<typename _ForwardIterator,
+	       typename _UniformRandomNumberGenerator>
+	void
+	__generate(_ForwardIterator __f, _ForwardIterator __t,
+		   _UniformRandomNumberGenerator& __urng,
+		   const param_type& __p)
+	{ this->__generate_impl(__f, __t, __urng, __p); }
+
+      template<typename _UniformRandomNumberGenerator>
+	void
+	__generate(result_type* __f, result_type* __t,
+		   _UniformRandomNumberGenerator& __urng,
+		   const param_type& __p)
+	{ this->__generate_impl(__f, __t, __urng, __p); }
+
+      /**
+       * @brief Return true if two triangle distributions have the same
+       *        parameters and the sequences that would be generated
+       *        are equal.
+       */
+      friend bool
+      operator==(const triangular_distribution& __d1,
+		 const triangular_distribution& __d2)
+      { return __d1._M_param == __d2._M_param; }
+
+      /**
+       * @brief Inserts a %triangular_distribution random number distribution
+       * @p __x into the output stream @p __os.
+       *
+       * @param __os An output stream.
+       * @param __x  A %triangular_distribution random number distribution.
+       *
+       * @returns The output stream with the state of @p __x inserted or in
+       * an error state.
+       */
+      template<typename _RealType1, typename _CharT, typename _Traits>
+	friend std::basic_ostream<_CharT, _Traits>&
+	operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+		   const __gnu_cxx::triangular_distribution<_RealType1>& __x);
+
+      /**
+       * @brief Extracts a %triangular_distribution random number distribution
+       * @p __x from the input stream @p __is.
+       *
+       * @param __is An input stream.
+       * @param __x  A %triangular_distribution random number generator engine.
+       *
+       * @returns The input stream with @p __x extracted or in an error state.
+       */
+      template<typename _RealType1, typename _CharT, typename _Traits>
+	friend std::basic_istream<_CharT, _Traits>&
+	operator>>(std::basic_istream<_CharT, _Traits>& __is,
+		   __gnu_cxx::triangular_distribution<_RealType1>& __x);
+
+    private:
+      template<typename _ForwardIterator,
+	       typename _UniformRandomNumberGenerator>
+	void
+	__generate_impl(_ForwardIterator __f, _ForwardIterator __t,
+			_UniformRandomNumberGenerator& __urng,
+			const param_type& __p);
+
+      param_type _M_param;
+    };
+
+  /**
+   * @brief Return true if two triangle distributions are different.
+   */
+  template<typename _RealType>
+    inline bool
+    operator!=(const __gnu_cxx::triangular_distribution<_RealType>& __d1,
+	       const __gnu_cxx::triangular_distribution<_RealType>& __d2)
+   { return !(__d1 == __d2); }
+
+
+  /**
+   * @brief A von Mises distribution for random numbers.
+   *
+   * The formula for the von Mises probability density function is
+   * @f[
+   *     p(x|\mu,\kappa) = \frac{e^{\kappa \cos(x-\mu)}}
+   *                            {2\pi I_0(\kappa)}
+   * @f]
+   *
+   * The generating functions use the method according to:
+   *
+   * D. J. Best and N. I. Fisher, 1979. "Efficient Simulation of the
+   * von Mises Distribution", Journal of the Royal Statistical Society.
+   * Series C (Applied Statistics), Vol. 28, No. 2, pp. 152-157.
+   *
+   * <table border=1 cellpadding=10 cellspacing=0>
+   * <caption align=top>Distribution Statistics</caption>
+   * <tr><td>Mean</td><td>@f$ \mu @f$</td></tr>
+   * <tr><td>Variance</td><td>@f$ 1-I_1(\kappa)/I_0(\kappa) @f$</td></tr>
+   * <tr><td>Range</td><td>@f$[-\pi, \pi]@f$</td></tr>
+   * </table>
+   */
+  template<typename _RealType = double>
+    class von_mises_distribution
+    {
+      static_assert(std::is_floating_point<_RealType>::value,
+		    "template argument not a floating point type");
+
+    public:
+      /** The type of the range of the distribution. */
+      typedef _RealType result_type;
+      /** Parameter type. */
+      struct param_type
+      {
+	friend class von_mises_distribution<_RealType>;
+
+	explicit
+	param_type(_RealType __mu = _RealType(0),
+		   _RealType __kappa = _RealType(1))
+	: _M_mu(__mu), _M_kappa(__kappa)
+	{
+	  const _RealType __pi = __gnu_cxx::__math_constants<_RealType>::__pi;
+	  _GLIBCXX_DEBUG_ASSERT(_M_mu >= -__pi && _M_mu <= __pi);
+	  _GLIBCXX_DEBUG_ASSERT(_M_kappa >= _RealType(0));
+	}
+
+	_RealType
+	mu() const
+	{ return _M_mu; }
+
+	_RealType
+	kappa() const
+	{ return _M_kappa; }
+
+	friend bool
+	operator==(const param_type& __p1, const param_type& __p2)
+	{ return __p1._M_kappa == __p2._M_kappa; }
+
+      private:
+
+	_RealType _M_mu;
+	_RealType _M_kappa;
+      };
+
+      /**
+       * @brief Constructs a beta distribution with parameters
+       * @f$\mu@f$ and @f$\kappa@f$.
+       */
+      explicit
+      von_mises_distribution(result_type __mu = result_type(0),
+			     result_type __kappa = result_type(1))
+	: _M_param(__mu, __kappa)
+      { }
+
+      explicit
+      von_mises_distribution(const param_type& __p)
+      : _M_param(__p)
+      { }
+
+      /**
+       * @brief Resets the distribution state.
+       */
+      void
+      reset()
+      { }
+
+      /**
+       * @brief Returns the @f$ \mu @f$ of the distribution.
+       */
+      result_type
+      mu() const
+      { return _M_param.mu(); }
+
+      /**
+       * @brief Returns the @f$ \kappa @f$ of the distribution.
+       */
+      result_type
+      kappa() const
+      { return _M_param.kappa(); }
+
+      /**
+       * @brief Returns the parameter set of the distribution.
+       */
+      param_type
+      param() const
+      { return _M_param; }
+
+      /**
+       * @brief Sets the parameter set of the distribution.
+       * @param __param The new parameter set of the distribution.
+       */
+      void
+      param(const param_type& __param)
+      { _M_param = __param; }
+
+      /**
+       * @brief Returns the greatest lower bound value of the distribution.
+       */
+      result_type
+      min() const
+      {
+	return -__gnu_cxx::__math_constants<result_type>::__pi;
+      }
+
+      /**
+       * @brief Returns the least upper bound value of the distribution.
+       */
+      result_type
+      max() const
+      {
+	return __gnu_cxx::__math_constants<result_type>::__pi;
+      }
+
+      /**
+       * @brief Generating functions.
+       */
+      template<typename _UniformRandomNumberGenerator>
+	result_type
+	operator()(_UniformRandomNumberGenerator& __urng)
+	{ return this->operator()(__urng, _M_param); }
+
+      template<typename _UniformRandomNumberGenerator>
+	result_type
+	operator()(_UniformRandomNumberGenerator& __urng,
+		   const param_type& __p)
+	{
+	  const result_type __pi
+	    = __gnu_cxx::__math_constants<result_type>::__pi;
+	  std::__detail::_Adaptor<_UniformRandomNumberGenerator, result_type>
+	    __aurng(__urng);
+	  result_type __tau = (std::sqrt(result_type(4) * this->kappa()
+					 * this->kappa() + result_type(1))
+			       + result_type(1));
+	  result_type __rho = ((__tau - std::sqrt(result_type(2) * __tau))
+			       / (result_type(2) * this->kappa()));
+	  result_type __r = ((result_type(1) + __rho * __rho)
+			     / (result_type(2) * __rho));
+
+	  result_type __f;
+	  while (1)
+	    {
+	      result_type __rnd = std::cos(__pi * __aurng());
+	      __f = (result_type(1) + __r * __rnd) / (__r + __rnd);
+	      result_type __c = this->kappa() * (__r - __f);
+
+	      result_type __rnd2 = __aurng();
+	      if (__c * (result_type(2) - __c) > __rnd2)
+		break;
+	      if (std::log(__c / __rnd2) >= __c - result_type(1))
+		break;
+	    }
+
+	  result_type __res = std::acos(__f);
+#if _GLIBCXX_USE_C99_MATH_TR1
+	  __res = std::copysign(__res, __aurng() - result_type(0.5));
+#else
+	  if (__aurng() < result_type(0.5))
+	    __res = -__res;
+#endif
+	  __res += this->mu();
+	  if (__res > __pi)
+	    __res -= result_type(2) * __pi;
+	  else if (__res < -__pi)
+	    __res += result_type(2) * __pi;
+	  return __res;
+	}
+
+      template<typename _ForwardIterator,
+	       typename _UniformRandomNumberGenerator>
+	void
+	__generate(_ForwardIterator __f, _ForwardIterator __t,
+		   _UniformRandomNumberGenerator& __urng)
+	{ this->__generate(__f, __t, __urng, _M_param); }
+
+      template<typename _ForwardIterator,
+	       typename _UniformRandomNumberGenerator>
+	void
+	__generate(_ForwardIterator __f, _ForwardIterator __t,
+		   _UniformRandomNumberGenerator& __urng,
+		   const param_type& __p)
+	{ this->__generate_impl(__f, __t, __urng, __p); }
+
+      template<typename _UniformRandomNumberGenerator>
+	void
+	__generate(result_type* __f, result_type* __t,
+		   _UniformRandomNumberGenerator& __urng,
+		   const param_type& __p)
+	{ this->__generate_impl(__f, __t, __urng, __p); }
+
+      /**
+       * @brief Return true if two von Mises distributions have the same
+       *        parameters and the sequences that would be generated
+       *        are equal.
+       */
+      friend bool
+      operator==(const von_mises_distribution& __d1,
+		 const von_mises_distribution& __d2)
+      { return __d1._M_param == __d2._M_param; }
+
+      /**
+       * @brief Inserts a %von_mises_distribution random number distribution
+       * @p __x into the output stream @p __os.
+       *
+       * @param __os An output stream.
+       * @param __x  A %von_mises_distribution random number distribution.
+       *
+       * @returns The output stream with the state of @p __x inserted or in
+       * an error state.
+       */
+      template<typename _RealType1, typename _CharT, typename _Traits>
+	friend std::basic_ostream<_CharT, _Traits>&
+	operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+		   const __gnu_cxx::von_mises_distribution<_RealType1>& __x);
+
+      /**
+       * @brief Extracts a %von_mises_distribution random number distribution
+       * @p __x from the input stream @p __is.
+       *
+       * @param __is An input stream.
+       * @param __x  A %von_mises_distribution random number generator engine.
+       *
+       * @returns The input stream with @p __x extracted or in an error state.
+       */
+      template<typename _RealType1, typename _CharT, typename _Traits>
+	friend std::basic_istream<_CharT, _Traits>&
+	operator>>(std::basic_istream<_CharT, _Traits>& __is,
+		   __gnu_cxx::von_mises_distribution<_RealType1>& __x);
+
+    private:
+      template<typename _ForwardIterator,
+	       typename _UniformRandomNumberGenerator>
+	void
+	__generate_impl(_ForwardIterator __f, _ForwardIterator __t,
+			_UniformRandomNumberGenerator& __urng,
+			const param_type& __p);
+
+      param_type _M_param;
+    };
+
+  /**
+   * @brief Return true if two von Mises distributions are different.
+   */
+  template<typename _RealType>
+    inline bool
+    operator!=(const __gnu_cxx::von_mises_distribution<_RealType>& __d1,
+	       const __gnu_cxx::von_mises_distribution<_RealType>& __d2)
+   { return !(__d1 == __d2); }
+
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace __gnu_cxx
 
diff --git a/libstdc++-v3/include/ext/random.tcc b/libstdc++-v3/include/ext/random.tcc
index 25b93bf92b7..009e0effba8 100644
--- a/libstdc++-v3/include/ext/random.tcc
+++ b/libstdc++-v3/include/ext/random.tcc
@@ -1187,6 +1187,126 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       return __is;
     }
 
+
+  template<typename _RealType>
+    template<typename _OutputIterator,
+	     typename _UniformRandomNumberGenerator>
+      void
+      triangular_distribution<_RealType>::
+      __generate_impl(_OutputIterator __f, _OutputIterator __t,
+		      _UniformRandomNumberGenerator& __urng,
+		      const param_type& __param)
+      {
+	__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator>)
+
+	while (__f != __t)
+	  *__f++ = this->operator()(__urng, __param);
+      }
+
+  template<typename _RealType, typename _CharT, typename _Traits>
+    std::basic_ostream<_CharT, _Traits>&
+    operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+	       const __gnu_cxx::triangular_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() << __space << __x.c();
+
+      __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,
+	       __gnu_cxx::triangular_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, __c;
+      __is >> __a >> __b >> __c;
+      __x.param(typename __gnu_cxx::triangular_distribution<_RealType>::
+		param_type(__a, __b, __c));
+
+      __is.flags(__flags);
+      return __is;
+    }
+
+
+  template<typename _RealType>
+    template<typename _OutputIterator,
+	     typename _UniformRandomNumberGenerator>
+      void
+      von_mises_distribution<_RealType>::
+      __generate_impl(_OutputIterator __f, _OutputIterator __t,
+		      _UniformRandomNumberGenerator& __urng,
+		      const param_type& __param)
+      {
+	__glibcxx_function_requires(_OutputIteratorConcept<_OutputIterator>)
+
+	while (__f != __t)
+	  *__f++ = this->operator()(__urng, __param);
+      }
+
+  template<typename _RealType, typename _CharT, typename _Traits>
+    std::basic_ostream<_CharT, _Traits>&
+    operator<<(std::basic_ostream<_CharT, _Traits>& __os,
+	       const __gnu_cxx::von_mises_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.mu() << __space << __x.kappa();
+
+      __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,
+	       __gnu_cxx::von_mises_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 __mu, __kappa;
+      __is >> __mu >> __kappa;
+      __x.param(typename __gnu_cxx::von_mises_distribution<_RealType>::
+		param_type(__mu, __kappa));
+
+      __is.flags(__flags);
+      return __is;
+    }
+
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace
 
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/cons/default.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/cons/default.cc
new file mode 100644
index 00000000000..63303f81e6b
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/cons/default.cc
@@ -0,0 +1,44 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::triangular_distribution<> u;
+  VERIFY( u.a() == 0.0 );
+  VERIFY( u.b() == 0.5 );
+  VERIFY( u.c() == 1.0 );
+  VERIFY( u.min() == 0.0 );
+  VERIFY( u.max() == 1.0 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/cons/parms.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/cons/parms.cc
new file mode 100644
index 00000000000..8380965df46
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/cons/parms.cc
@@ -0,0 +1,44 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::triangular_distribution<> u(1.5, 3.0, 3.5);
+  VERIFY( u.a() == 1.5 );
+  VERIFY( u.b() == 3.0 );
+  VERIFY( u.c() == 3.5 );
+  VERIFY( u.min() == 1.5 );
+  VERIFY( u.max() == 3.5 );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/operators/equal.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/operators/equal.cc
new file mode 100644
index 00000000000..c38ea4c58c4
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/operators/equal.cc
@@ -0,0 +1,42 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2010-03-16  Paolo Carlini  <paolo.carlini@oracle.com>
+// 2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::triangular_distribution<double> u(1.5, 3.0, 4.0), v, w;
+
+  VERIFY( v == w );
+  VERIFY( !(u == v) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/operators/inequal.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/operators/inequal.cc
new file mode 100644
index 00000000000..c4a014ea2c8
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/operators/inequal.cc
@@ -0,0 +1,42 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2010-03-16  Paolo Carlini  <paolo.carlini@oracle.com>
+// 2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::triangular_distribution<double> u(1.5, 3.0, 5.0), v, w;
+
+  VERIFY( u != v );
+  VERIFY( !(v != w) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/operators/serialize.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/operators/serialize.cc
new file mode 100644
index 00000000000..7878376d93a
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/operators/serialize.cc
@@ -0,0 +1,44 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2009-08-14  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+//
+// Copyright (C) 2013 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>
+
+void
+test01()
+{
+  std::stringstream str;
+  __gnu_cxx::triangular_distribution<double> u(1.5, 3.0, 4.5), v;
+  std::minstd_rand0 rng;
+
+  u(rng); // advance
+  str << u;
+
+  str >> v;
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/requirements/explicit_instantiation/1.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/requirements/explicit_instantiation/1.cc
new file mode 100644
index 00000000000..189bdaf80c1
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/requirements/explicit_instantiation/1.cc
@@ -0,0 +1,26 @@
+// { dg-do compile }
+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// Copyright (C) 2013 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>
+
+template class __gnu_cxx::triangular_distribution<float>;
+template class __gnu_cxx::triangular_distribution<double>;
+template class __gnu_cxx::triangular_distribution<long double>;
diff --git a/libstdc++-v3/testsuite/ext/triangular_distribution/requirements/typedefs.cc b/libstdc++-v3/testsuite/ext/triangular_distribution/requirements/typedefs.cc
new file mode 100644
index 00000000000..835e8e7e9c7
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/triangular_distribution/requirements/typedefs.cc
@@ -0,0 +1,34 @@
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::triangular_distribution<double> test_type;
+
+  typedef test_type::result_type result_type;
+  typedef test_type::param_type param_type;
+}
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/cons/default.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/cons/default.cc
new file mode 100644
index 00000000000..3183c85ed7e
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/cons/default.cc
@@ -0,0 +1,43 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::von_mises_distribution<> u;
+  VERIFY( u.mu() == 0.0 );
+  VERIFY( u.kappa() == 1.0 );
+  VERIFY( u.min() == -__gnu_cxx::__math_constants<double>::__pi );
+  VERIFY( u.max() == __gnu_cxx::__math_constants<double>::__pi );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/cons/parms.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/cons/parms.cc
new file mode 100644
index 00000000000..6c1f8f73007
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/cons/parms.cc
@@ -0,0 +1,43 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::von_mises_distribution<> u(1.5, 3.0);
+  VERIFY( u.mu() == 1.5 );
+  VERIFY( u.kappa() == 3.0 );
+  VERIFY( u.min() == -__gnu_cxx::__math_constants<double>::__pi );
+  VERIFY( u.max() == __gnu_cxx::__math_constants<double>::__pi );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/equal.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/equal.cc
new file mode 100644
index 00000000000..569a9aae944
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/equal.cc
@@ -0,0 +1,42 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2010-03-16  Paolo Carlini  <paolo.carlini@oracle.com>
+// 2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::von_mises_distribution<double> u(1.5, 3.0), v, w;
+
+  VERIFY( v == w );
+  VERIFY( !(u == v) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/inequal.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/inequal.cc
new file mode 100644
index 00000000000..a4d2d8ddfbd
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/inequal.cc
@@ -0,0 +1,42 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2010-03-16  Paolo Carlini  <paolo.carlini@oracle.com>
+// 2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::von_mises_distribution<double> u(1.5, 3.0), v, w;
+
+  VERIFY( u != v );
+  VERIFY( !(v != w) );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/serialize.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/serialize.cc
new file mode 100644
index 00000000000..5437c136ae8
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/operators/serialize.cc
@@ -0,0 +1,44 @@
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2009-08-14  Edward M. Smith-Rowland  <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper  <drepper@gmail.com>
+//
+// Copyright (C) 2013 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>
+
+void
+test01()
+{
+  std::stringstream str;
+  __gnu_cxx::von_mises_distribution<double> u(1.5, 3.0), v;
+  std::minstd_rand0 rng;
+
+  u(rng); // advance
+  str << u;
+
+  str >> v;
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/requirements/explicit_instantiation/1.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/requirements/explicit_instantiation/1.cc
new file mode 100644
index 00000000000..d93093f4d8f
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/requirements/explicit_instantiation/1.cc
@@ -0,0 +1,26 @@
+// { dg-do compile }
+// { dg-options "-std=c++11" }
+// { dg-require-cstdint "" }
+//
+// Copyright (C) 2013 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>
+
+template class __gnu_cxx::von_mises_distribution<float>;
+template class __gnu_cxx::von_mises_distribution<double>;
+template class __gnu_cxx::von_mises_distribution<long double>;
diff --git a/libstdc++-v3/testsuite/ext/von_mises_distribution/requirements/typedefs.cc b/libstdc++-v3/testsuite/ext/von_mises_distribution/requirements/typedefs.cc
new file mode 100644
index 00000000000..c8c34abd3e2
--- /dev/null
+++ b/libstdc++-v3/testsuite/ext/von_mises_distribution/requirements/typedefs.cc
@@ -0,0 +1,34 @@
+// { dg-do compile }
+// { dg-options "-std=c++0x" }
+// { dg-require-cstdint "" }
+//
+// 2008-11-24  Edward M. Smith-Rowland <3dw4rd@verizon.net>
+// 2013-03-02  Ulrich Drepper <drepper@gmail.com>
+//
+// Copyright (C) 2013 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::von_mises_distribution<double> test_type;
+
+  typedef test_type::result_type result_type;
+  typedef test_type::param_type param_type;
+}