[cfe-commits] [libcxx] r103814 - in /libcxx/trunk: include/ test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/
Howard Hinnant
hhinnant at apple.com
Fri May 14 14:38:55 PDT 2010
Author: hhinnant
Date: Fri May 14 16:38:54 2010
New Revision: 103814
URL: http://llvm.org/viewvc/llvm-project?rev=103814&view=rev
Log:
[rand.dist.pois.poisson]
Added:
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/assign.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/copy.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_double.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eq.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/get_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/io.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/max.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/min.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_assign.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_copy.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_ctor.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_eq.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_types.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/set_param.pass.cpp
libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/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=103814&r1=103813&r2=103814&view=diff
==============================================================================
--- libcxx/trunk/include/random (original)
+++ libcxx/trunk/include/random Fri May 14 16:38:54 2010
@@ -672,7 +672,60 @@
class negative_binomial_distribution;
template<class IntType = int>
- class poisson_distribution;
+class poisson_distribution
+{
+public:
+ // types
+ typedef IntType result_type;
+
+ class param_type
+ {
+ public:
+ typedef poisson_distribution distribution_type;
+
+ explicit param_type(double mean = 1.0);
+
+ double mean() const;
+
+ friend bool operator==(const param_type& x, const param_type& y);
+ friend bool operator!=(const param_type& x, const param_type& y);
+ };
+
+ // constructors and reset functions
+ explicit poisson_distribution(double mean = 1.0);
+ explicit poisson_distribution(const param_type& parm);
+ void reset();
+
+ // generating functions
+ template<class URNG> result_type operator()(URNG& g);
+ template<class URNG> result_type operator()(URNG& g, const param_type& parm);
+
+ // property functions
+ double mean() const;
+
+ param_type param() const;
+ void param(const param_type& parm);
+
+ result_type min() const;
+ result_type max() const;
+
+ friend bool operator==(const poisson_distribution& x,
+ const poisson_distribution& y);
+ friend bool operator!=(const poisson_distribution& x,
+ const poisson_distribution& y);
+
+ template <class charT, class traits>
+ friend
+ basic_ostream<charT, traits>&
+ operator<<(basic_ostream<charT, traits>& os,
+ const poisson_distribution& x);
+
+ template <class charT, class traits>
+ friend
+ basic_istream<charT, traits>&
+ operator>>(basic_istream<charT, traits>& is,
+ poisson_distribution& x);
+};
template<class RealType = double>
class exponential_distribution
@@ -3181,6 +3234,149 @@
return __is;
}
+// poisson_distribution
+
+template<class _IntType = int>
+class poisson_distribution
+{
+public:
+ // types
+ typedef _IntType result_type;
+
+ class param_type
+ {
+ double __mean_;
+ double __sq_;
+ double __alxm_;
+ double __g_;
+ public:
+ typedef poisson_distribution distribution_type;
+
+ explicit param_type(double __mean = 1.0);
+
+ double mean() const {return __mean_;}
+
+ friend bool operator==(const param_type& __x, const param_type& __y)
+ {return __x.__mean_ == __y.__mean_;}
+ friend bool operator!=(const param_type& __x, const param_type& __y)
+ {return !(__x == __y);}
+
+ friend class poisson_distribution;
+ };
+
+private:
+ param_type __p_;
+
+public:
+ // constructors and reset functions
+ explicit poisson_distribution(double __mean = 1.0) : __p_(__mean) {}
+ explicit poisson_distribution(const param_type& __p) : __p_(__p) {}
+ void reset() {}
+
+ // generating functions
+ template<class _URNG> result_type operator()(_URNG& __g)
+ {return (*this)(__g, __p_);}
+ template<class _URNG> result_type operator()(_URNG& __g, const param_type& __p);
+
+ // property functions
+ double mean() const {return __p_.mean();}
+
+ param_type param() const {return __p_;}
+ void param(const param_type& __p) {__p_ = __p;}
+
+ result_type min() const {return 0;}
+ result_type max() const {return numeric_limits<result_type>::max();}
+
+ friend bool operator==(const poisson_distribution& __x,
+ const poisson_distribution& __y)
+ {return __x.__p_ == __y.__p_;}
+ friend bool operator!=(const poisson_distribution& __x,
+ const poisson_distribution& __y)
+ {return !(__x == __y);}
+};
+
+template<class _IntType>
+poisson_distribution<_IntType>::param_type::param_type(double __mean)
+ : __mean_(__mean)
+{
+ if (__mean_ < 12.0)
+ {
+ __g_ = _STD::exp(-__mean_);
+ __alxm_ = 0;
+ __sq_ = 0;
+ }
+ else
+ {
+ __sq_ = _STD::sqrt(2.0 * __mean_);
+ __alxm_ = _STD::log(__mean_);
+ __g_ = __mean_ * __alxm_ - _STD::lgamma(__mean_ + 1);
+ }
+}
+
+template <class _IntType>
+template<class _URNG>
+_IntType
+poisson_distribution<_IntType>::operator()(_URNG& __g, const param_type& __p)
+{
+ result_type __x;
+ uniform_real_distribution<double> __gen;
+ if (__p.__mean_ < 12.0)
+ {
+ __x = result_type(~0);
+ double __t = 1;
+ do
+ {
+ ++__x;
+ __t *= __gen(__g);
+ } while (__t > __p.__g_);
+ }
+ else
+ {
+ double __t;
+ const double __pi = 3.14159265358979323846264338328;
+ do
+ {
+ double _X;
+ double __y;
+ do
+ {
+ __y = _STD::tan(__pi * __gen(__g));
+ _X = __p.__sq_ * __y + __p.__mean_;
+ } while (_X < 0);
+ __x = static_cast<result_type>(_X);
+ __t = 0.9 * (1 + __y * __y) * _STD::exp(__x * __p.__alxm_ -
+ _STD::lgamma(__x + 1.0) - __p.__g_);
+ } while (__gen(__g) > __t);
+ }
+ return __x;
+}
+
+template <class _CharT, class _Traits, class _IntType>
+basic_ostream<_CharT, _Traits>&
+operator<<(basic_ostream<_CharT, _Traits>& __os,
+ const poisson_distribution<_IntType>& __x)
+{
+ __save_flags<_CharT, _Traits> _(__os);
+ __os.flags(ios_base::dec | ios_base::left);
+ return __os << __x.mean();
+}
+
+template <class _CharT, class _Traits, class _IntType>
+basic_istream<_CharT, _Traits>&
+operator>>(basic_istream<_CharT, _Traits>& __is,
+ poisson_distribution<_IntType>& __x)
+{
+ typedef poisson_distribution<_IntType> _Eng;
+ typedef typename _Eng::param_type param_type;
+ __save_flags<_CharT, _Traits> _(__is);
+ __is.flags(ios_base::dec | ios_base::skipws);
+ double __mean;
+ __is >> __mean;
+ if (!__is.fail())
+ __x.param(param_type(__mean));
+ return __is;
+}
+
// exponential_distribution
template<class _RealType = double>
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/assign.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/assign.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/assign.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/assign.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// poisson_distribution& operator=(const poisson_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::poisson_distribution<> D;
+ D d1(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.poisson/copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/copy.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/copy.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/copy.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// poisson_distribution(const poisson_distribution&);
+
+#include <random>
+#include <cassert>
+
+void
+test1()
+{
+ typedef std::poisson_distribution<> D;
+ D d1(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.poisson/ctor_double.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_double.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_double.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_double.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// explicit poisson_distribution(RealType lambda = 1.0);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ D d;
+ assert(d.mean() == 1);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ D d(3.5);
+ assert(d.mean() == 3.5);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_param.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/ctor_param.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// explicit poisson_distribution(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type P;
+ P p(0.25);
+ D d(p);
+ assert(d.mean() == 0.25);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eq.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eq.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eq.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eq.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// bool operator=(const poisson_distribution& x,
+// const poisson_distribution& y);
+// bool operator!(const poisson_distribution& x,
+// const poisson_distribution& y);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ D d1(.25);
+ D d2(.25);
+ assert(d1 == d2);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ D d1(.28);
+ D d2(.25);
+ assert(d1 != d2);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval.pass.cpp Fri May 14 16:38:54 2010
@@ -0,0 +1,89 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class poisson_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::poisson_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ D d(2);
+ const int N = 100000;
+ std::vector<double> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g));
+ double mean = std::accumulate(u.begin(), u.end(), 0.0) / u.size();
+ double var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ double x_mean = d.mean();
+ double x_var = d.mean();
+ assert(std::abs(mean - x_mean) / x_mean < 0.01);
+ assert(std::abs(var - x_var) / x_var < 0.01);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ D d(0.75);
+ const int N = 100000;
+ std::vector<double> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g));
+ double mean = std::accumulate(u.begin(), u.end(), 0.0) / u.size();
+ double var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ double x_mean = d.mean();
+ double x_var = d.mean();
+ assert(std::abs(mean - x_mean) / x_mean < 0.01);
+ assert(std::abs(var - x_var) / x_var < 0.01);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ typedef std::minstd_rand G;
+ G g;
+ D d(20);
+ const int N = 10000;
+ std::vector<double> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g));
+ double mean = std::accumulate(u.begin(), u.end(), 0.0) / u.size();
+ double var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ double x_mean = d.mean();
+ double x_var = d.mean();
+ assert(std::abs(mean - x_mean) / x_mean < 0.01);
+ assert(std::abs(var - x_var) / x_var < 0.01);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_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::poisson_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(.75);
+ P p(2);
+ const int N = 100000;
+ std::vector<double> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g, p));
+ double mean = std::accumulate(u.begin(), u.end(), 0.0) / u.size();
+ double var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ double x_mean = p.mean();
+ double x_var = p.mean();
+ assert(std::abs(mean - x_mean) / x_mean < 0.01);
+ assert(std::abs(var - x_var) / x_var < 0.01);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(2);
+ P p(.75);
+ const int N = 100000;
+ std::vector<double> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g, p));
+ double mean = std::accumulate(u.begin(), u.end(), 0.0) / u.size();
+ double var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ double x_mean = p.mean();
+ double x_var = p.mean();
+ assert(std::abs(mean - x_mean) / x_mean < 0.01);
+ assert(std::abs(var - x_var) / x_var < 0.01);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type P;
+ typedef std::minstd_rand G;
+ G g;
+ D d(2);
+ P p(20);
+ const int N = 10000;
+ std::vector<double> u;
+ for (int i = 0; i < N; ++i)
+ u.push_back(d(g, p));
+ double mean = std::accumulate(u.begin(), u.end(), 0.0) / u.size();
+ double var = 0;
+ for (int i = 0; i < u.size(); ++i)
+ var += sqr(u[i] - mean);
+ var /= u.size();
+ double x_mean = p.mean();
+ double x_var = p.mean();
+ assert(std::abs(mean - x_mean) / x_mean < 0.01);
+ assert(std::abs(var - x_var) / x_var < 0.01);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/get_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/get_param.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/get_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/get_param.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// param_type param() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type P;
+ P p(.125);
+ D d(p);
+ assert(d.param() == p);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/io.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/io.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/io.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/io.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// template <class CharT, class Traits, class IntType>
+// basic_ostream<CharT, Traits>&
+// operator<<(basic_ostream<CharT, Traits>& os,
+// const poisson_distribution<RealType>& x);
+
+// template <class CharT, class Traits, class IntType>
+// basic_istream<CharT, Traits>&
+// operator>>(basic_istream<CharT, Traits>& is,
+// poisson_distribution<RealType>& x);
+
+#include <random>
+#include <sstream>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ D d1(7);
+ 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.poisson/max.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/max.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/max.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/max.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// result_type max() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ D d(.25);
+ D::result_type m = d.max();
+ assert(m == std::numeric_limits<int>::max());
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/min.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/min.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/min.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/min.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+
+// result_type min() const;
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ D d(.5);
+ assert(d.min() == 0);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_assign.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_assign.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_assign.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_assign.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p0(.7);
+ param_type p;
+ p = p0;
+ assert(p.mean() == .7);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_copy.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_copy.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_copy.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_copy.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p0(.125);
+ param_type p = p0;
+ assert(p.mean() == .125);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_ctor.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_ctor.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_ctor.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_ctor.pass.cpp Fri May 14 16:38:54 2010
@@ -0,0 +1,35 @@
+//===----------------------------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <random>
+
+// template<class IntType = int>
+// class poisson_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p;
+ assert(p.mean() == 1);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p(10);
+ assert(p.mean() == 10);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_eq.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_eq.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_eq.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_eq.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <limits>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p1(0.75);
+ param_type p2(0.75);
+ assert(p1 == p2);
+ }
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type param_type;
+ param_type p1(0.75);
+ param_type p2(0.5);
+ assert(p1 != p2);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_types.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_types.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_types.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/param_types.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+// {
+// class param_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::poisson_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.poisson/set_param.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/set_param.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/set_param.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/set_param.pass.cpp Fri May 14 16:38:54 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 poisson_distribution;
+
+// void param(const param_type& parm);
+
+#include <random>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::param_type P;
+ P p(0.25);
+ D d(0.75);
+ d.param(p);
+ assert(d.param() == p);
+ }
+}
Added: libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/types.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/types.pass.cpp?rev=103814&view=auto
==============================================================================
--- libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/types.pass.cpp (added)
+++ libcxx/trunk/test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.poisson/types.pass.cpp Fri May 14 16:38:54 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 IntType = int>
+// class poisson_distribution
+// {
+// public:
+// // types
+// typedef RealType result_type;
+
+#include <random>
+#include <type_traits>
+
+int main()
+{
+ {
+ typedef std::poisson_distribution<> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, int>::value), "");
+ }
+ {
+ typedef std::poisson_distribution<unsigned long long> D;
+ typedef D::result_type result_type;
+ static_assert((std::is_same<result_type, unsigned long long>::value), "");
+ }
+}
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