[cfe-commits] [libcxx] r103788 - in /libcxx/trunk: include/ test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/
Howard Hinnant
hhinnant at apple.com
Fri May 14 11:43:10 PDT 2010
Author: hhinnant
Date: Fri May 14 13:43:10 2010
New Revision: 103788
URL: http://llvm.org/viewvc/llvm-project?rev=103788&view=rev
Log:
[rand.dist.pois.gamma]
Added:
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/assign.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/copy.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_double_double.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eq.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/get_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/io.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/max.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/min.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_assign.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_copy.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_ctor.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_eq.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_types.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/set_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/types.pass.cpp
Modified:
libcxx/trunk/include/random
Modified: libcxx/trunk/include/random
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/include/random?rev=103788&r1=103787&r2=103788&view=diff
==============================================================================
--- libcxx/trunk/include/random (original)
+++ libcxx/trunk/include/random Fri May 14 13:43:10 2010
@@ -3348,21 +3348,22 @@
_RealType
gamma_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p)
{
- result_type __a = __p_.alpha();
+ result_type __a = __p.alpha();
+ uniform_real_distribution<result_type> __gen(0, 1);
+ exponential_distribution<result_type> __egen;
+ result_type __x;
if (__a == 1)
- return exponential_distribution<result_type>(1/__p_.beta())(__g);
+ __x = __egen(__g);
else if (__a > 1)
{
const result_type __b = __a - 1;
const result_type __c = 3 * __a - result_type(0.75);
- uniform_real_distribution<result_type> __gen(0, 1);
- result_type __x;
while (true)
{
const result_type __u = __gen(__g);
const result_type __v = __gen(__g);
const result_type __w = __u * (1 - __u);
- if (__w =! 0)
+ if (__w != 0)
{
const result_type __y = _STD::sqrt(__c / __w) *
(__u - result_type(0.5));
@@ -3377,10 +3378,29 @@
}
}
}
- return __x * __p_.beta();
}
- // else __a < 1
- return 0; // temp!!!
+ else // __a < 1
+ {
+ while (true)
+ {
+ const result_type __u = __gen(__g);
+ const result_type __es = __egen(__g);
+ if (__u <= 1 - __a)
+ {
+ __x = _STD::pow(__u, 1 / __a);
+ if (__x <= __es)
+ break;
+ }
+ else
+ {
+ const result_type __e = -_STD::log((1-__u)/__a);
+ __x = _STD::pow(1 - __a + __a * __e, 1 / __a);
+ if (__x <= __e + __es)
+ break;
+ }
+ }
+ }
+ return __x * __p.beta();
}
template <class _CharT, class _Traits, class _RT>
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/assign.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/assign.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/assign.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/assign.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// gamma_distribution& operator=(const gamma_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::gamma_distribution<> D;
+ D d1(20, 0.75);
+ D d2;
+ assert(d1 != d2);
+ d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/copy.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/copy.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/copy.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// gamma_distribution(const gamma_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::gamma_distribution<> D;
+ D d1(20, 1.75);
+ D d2 = d1;
+ assert(d1 == d2);
+}
+
+int main()
+{
+ test1();
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_double_double.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_double_double.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_double_double.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_double_double.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// explicit gamma_distribution(result_type alpha = 0, result_type beta = 1);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ D d;
+ assert(d.alpha() == 1);
+ assert(d.beta() == 1);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ D d(14.5);
+ assert(d.alpha() == 14.5);
+ assert(d.beta() == 1);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ D d(14.5, 5.25);
+ assert(d.alpha() == 14.5);
+ assert(d.beta() == 5.25);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_param.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/ctor_param.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// explicit gamma_distribution(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ P p(0.25, 10);
+ D d(p);
+ assert(d.alpha() == 0.25);
+ assert(d.beta() == 10);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eq.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eq.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eq.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eq.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// bool operator=(const gamma_distribution& x,
+// const gamma_distribution& y);
+// bool operator!(const gamma_distribution& x,
+// const gamma_distribution& y);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ D d1(2.5, 4);
+ D d2(2.5, 4);
+ assert(d1 == d2);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ D d1(2.5, 4);
+ D d2(2.5, 4.5);
+ assert(d1 != d2);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,95 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g);
+
+#include <random>
+#include <cassert>
+#include <vector>
+#include <numeric>
+
+template <class T>
+inline
+T
+sqr(T x)
+{
+ return x * x;
+}
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(0.5, 2);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g));
+ D::result_type mean = std::accumulate(u.begin(), u.end(),
+ D::result_type(0)) / u.size();
+ D::result_type var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ D::result_type x_mean = d.alpha() * d.beta();
+ D::result_type x_var = d.alpha() * sqr(d.beta());
+ assert(std::abs(mean - x_mean) / x_mean < 0.02);
+ assert(std::abs(var - x_var) / x_var < 0.02);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(1, .5);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g));
+ D::result_type mean = std::accumulate(u.begin(), u.end(),
+ D::result_type(0)) / u.size();
+ D::result_type var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ D::result_type x_mean = d.alpha() * d.beta();
+ D::result_type x_var = d.alpha() * sqr(d.beta());
+ assert(std::abs(mean - x_mean) / x_mean < 0.02);
+ assert(std::abs(var - x_var) / x_var < 0.02);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(2, 3);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g));
+ D::result_type mean = std::accumulate(u.begin(), u.end(),
+ D::result_type(0)) / u.size();
+ D::result_type var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ D::result_type x_mean = d.alpha() * d.beta();
+ D::result_type x_var = d.alpha() * sqr(d.beta());
+ assert(std::abs(mean - x_mean) / x_mean < 0.02);
+ assert(std::abs(var - x_var) / x_var < 0.02);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,98 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
+
+#include <random>
+#include <cassert>
+#include <vector>
+#include <numeric>
+
+template <class T>
+inline
+T
+sqr(T x)
+{
+ return x * x;
+}
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(0.5, 2);
+ P p(1, .5);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g, p));
+ D::result_type mean = std::accumulate(u.begin(), u.end(),
+ D::result_type(0)) / u.size();
+ D::result_type var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ D::result_type x_mean = p.alpha() * p.beta();
+ D::result_type x_var = p.alpha() * sqr(p.beta());
+ assert(std::abs(mean - x_mean) / x_mean < 0.02);
+ assert(std::abs(var - x_var) / x_var < 0.02);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(1, .5);
+ P p(2, 3);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g, p));
+ D::result_type mean = std::accumulate(u.begin(), u.end(),
+ D::result_type(0)) / u.size();
+ D::result_type var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ D::result_type x_mean = p.alpha() * p.beta();
+ D::result_type x_var = p.alpha() * sqr(p.beta());
+ assert(std::abs(mean - x_mean) / x_mean < 0.02);
+ assert(std::abs(var - x_var) / x_var < 0.02);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(2, 3);
+ P p(.5, 2);
+ const int N = 100000;
+ std::vector<D::result_type> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g, p));
+ D::result_type mean = std::accumulate(u.begin(), u.end(),
+ D::result_type(0)) / u.size();
+ D::result_type var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ D::result_type x_mean = p.alpha() * p.beta();
+ D::result_type x_var = p.alpha() * sqr(p.beta());
+ assert(std::abs(mean - x_mean) / x_mean < 0.02);
+ assert(std::abs(var - x_var) / x_var < 0.02);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/get_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/get_param.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/get_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/get_param.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,29 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// param_type param() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ P p(.125, .5);
+ D d(p);
+ assert(d.param() == p);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/io.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/io.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/io.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/io.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,41 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// template <class CharT, class Traits, class RealType>
+// basic_ostream<CharT, Traits>&
+// operator<<(basic_ostream<CharT, Traits>& os,
+// const gamma_distribution<RealType>& x);
+
+// template <class CharT, class Traits, class RealType>
+// basic_istream<CharT, Traits>&
+// operator>>(basic_istream<CharT, Traits>& is,
+// gamma_distribution<RealType>& x);
+
+#include <random>
+#include <sstream>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ D d1(7, 5);
+ std::ostringstream os;
+ os << d1;
+ std::istringstream is(os.str());
+ D d2;
+ is >> d2;
+ assert(d1 == d2);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/max.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/max.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/max.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/max.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// result_type max() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ D d(5, .25);
+ D::result_type m = d.max();
+ assert(m == INFINITY);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/min.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/min.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/min.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/min.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,27 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+
+// result_type min() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ D d(.5, .5);
+ assert(d.min() == 0);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_assign.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_assign.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_assign.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_assign.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,32 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p0(.75, 6);
+ param_type p;
+ p = p0;
+ assert(p.alpha() == .75);
+ assert(p.beta() == 6);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_copy.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_copy.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_copy.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p0(10, .125);
+ param_type p = p0;
+ assert(p.alpha() == 10);
+ assert(p.beta() == .125);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_ctor.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_ctor.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_ctor.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_ctor.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,44 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p;
+ assert(p.alpha() == 1);
+ assert(p.beta() == 1);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p(10);
+ assert(p.alpha() == 10);
+ assert(p.beta() == 1);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p(10, 5);
+ assert(p.alpha() == 10);
+ assert(p.beta() == 5);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_eq.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_eq.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_eq.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_eq.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,37 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p1(0.75, .5);
+ param_type p2(0.75, .5);
+ assert(p1 == p2);
+ }
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p1(0.75, .5);
+ param_type p2(0.5, .5);
+ assert(p1 != p2);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_types.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_types.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_types.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/param_types.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,28 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type param_type;
+ typedef param_type::distribution_type distribution_type;
+ static_assert((std::is_same<D, distribution_type>::value), "");
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/set_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/set_param.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/set_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/set_param.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,30 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution;
+
+// void param(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::param_type P;
+ P p(0.25, 5.5);
+ D d(0.75, 4);
+ d.param(p);
+ assert(d.param() == p);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/types.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/types.pass.cpp?rev=103788&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/types.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.gamma/types.pass.cpp Fri May 14 13:43:10 2010
@@ -0,0 +1,34 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class RealType = double>
+// class gamma_distribution
+// {
+// public:
+// // types
+// typedef RealType result_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::gamma_distribution<> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, double>::value), "");
+ }
+ {
+ typedef std::gamma_distribution<float> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, float>::value), "");
+ }
+}
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