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[rand.dist.pois.weibull]

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103891 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2010-05-16 01:09:02 +00:00
parent 97dc2f35c3
commit 9de6e30761
19 changed files with 880 additions and 1 deletions
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34
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/assign.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// weibull_distribution& operator=(const weibull_distribution&);
#include <random>
#include <cassert>
void
test1()
{
typedef std::weibull_distribution<> D;
D d1(20, 0.75);
D d2;
assert(d1 != d2);
d2 = d1;
assert(d1 == d2);
}
int main()
{
test1();
}

32
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/copy.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// weibull_distribution(const weibull_distribution&);
#include <random>
#include <cassert>
void
test1()
{
typedef std::weibull_distribution<> D;
D d1(20, 1.75);
D d2 = d1;
assert(d1 == d2);
}
int main()
{
test1();
}

40
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/ctor_double_double.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// explicit weibull_distribution(result_type a = 0, result_type b = 1);
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
D d;
assert(d.a() == 1);
assert(d.b() == 1);
}
{
typedef std::weibull_distribution<> D;
D d(14.5);
assert(d.a() == 14.5);
assert(d.b() == 1);
}
{
typedef std::weibull_distribution<> D;
D d(14.5, 5.25);
assert(d.a() == 14.5);
assert(d.b() == 5.25);
}
}

30
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/ctor_param.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// explicit weibull_distribution(const param_type& parm);
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::param_type P;
P p(0.25, 10);
D d(p);
assert(d.a() == 0.25);
assert(d.b() == 10);
}
}

37
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eq.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// bool operator=(const weibull_distribution& x,
// const weibull_distribution& y);
// bool operator!(const weibull_distribution& x,
// const weibull_distribution& y);
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
D d1(2.5, 4);
D d2(2.5, 4);
assert(d1 == d2);
}
{
typedef std::weibull_distribution<> D;
D d1(2.5, 4);
D d2(2.5, 4.5);
assert(d1 != d2);
}
}

95
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_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::weibull_distribution<> D;
typedef D::param_type P;
typedef std::mt19937 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.b() * std::tgamma(1 + 1/d.a());
D::result_type x_var = sqr(d.b()) * std::tgamma(1 + 2/d.a()) - sqr(x_mean);
assert(std::abs(mean - x_mean) / x_mean < 0.02);
assert(std::abs(var - x_var) / x_var < 0.02);
}
{
typedef std::weibull_distribution<> D;
typedef D::param_type P;
typedef std::mt19937 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.b() * std::tgamma(1 + 1/d.a());
D::result_type x_var = sqr(d.b()) * std::tgamma(1 + 2/d.a()) - sqr(x_mean);
assert(std::abs(mean - x_mean) / x_mean < 0.02);
assert(std::abs(var - x_var) / x_var < 0.02);
}
{
typedef std::weibull_distribution<> D;
typedef D::param_type P;
typedef std::mt19937 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.b() * std::tgamma(1 + 1/d.a());
D::result_type x_var = sqr(d.b()) * std::tgamma(1 + 2/d.a()) - sqr(x_mean);
assert(std::abs(mean - x_mean) / x_mean < 0.02);
assert(std::abs(var - x_var) / x_var < 0.02);
}
}

98
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_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::weibull_distribution<> D;
typedef D::param_type P;
typedef std::mt19937 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.b() * std::tgamma(1 + 1/p.a());
D::result_type x_var = sqr(p.b()) * std::tgamma(1 + 2/p.a()) - sqr(x_mean);
assert(std::abs(mean - x_mean) / x_mean < 0.02);
assert(std::abs(var - x_var) / x_var < 0.02);
}
{
typedef std::weibull_distribution<> D;
typedef D::param_type P;
typedef std::mt19937 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.b() * std::tgamma(1 + 1/p.a());
D::result_type x_var = sqr(p.b()) * std::tgamma(1 + 2/p.a()) - sqr(x_mean);
assert(std::abs(mean - x_mean) / x_mean < 0.02);
assert(std::abs(var - x_var) / x_var < 0.02);
}
{
typedef std::weibull_distribution<> D;
typedef D::param_type P;
typedef std::mt19937 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.b() * std::tgamma(1 + 1/p.a());
D::result_type x_var = sqr(p.b()) * std::tgamma(1 + 2/p.a()) - sqr(x_mean);
assert(std::abs(mean - x_mean) / x_mean < 0.02);
assert(std::abs(var - x_var) / x_var < 0.02);
}
}

29
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/get_param.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// param_type param() const;
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::param_type P;
P p(.125, .5);
D d(p);
assert(d.param() == p);
}
}

41
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/io.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// template <class CharT, class Traits, class RealType>
// basic_ostream<CharT, Traits>&
// operator<<(basic_ostream<CharT, Traits>& os,
// const weibull_distribution<RealType>& x);
// template <class CharT, class Traits, class RealType>
// basic_istream<CharT, Traits>&
// operator>>(basic_istream<CharT, Traits>& is,
// weibull_distribution<RealType>& x);
#include <random>
#include <sstream>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
D d1(7, 5);
std::ostringstream os;
os << d1;
std::istringstream is(os.str());
D d2;
is >> d2;
assert(d1 == d2);
}
}

28
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/max.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// result_type max() const;
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
D d(5, .25);
D::result_type m = d.max();
assert(m == INFINITY);
}
}

27
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/min.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// result_type min() const;
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
D d(.5, .5);
assert(d.min() == 0);
}
}

32
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/param_assign.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// {
// class param_type;
#include <random>
#include <limits>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::param_type param_type;
param_type p0(.75, 6);
param_type p;
p = p0;
assert(p.a() == .75);
assert(p.b() == 6);
}
}

31
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/param_copy.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// {
// class param_type;
#include <random>
#include <limits>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::param_type param_type;
param_type p0(10, .125);
param_type p = p0;
assert(p.a() == 10);
assert(p.b() == .125);
}
}

44
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/param_ctor.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// {
// class param_type;
#include <random>
#include <limits>
#include <cassert>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::param_type param_type;
param_type p;
assert(p.a() == 1);
assert(p.b() == 1);
}
{
typedef std::weibull_distribution<> D;
typedef D::param_type param_type;
param_type p(10);
assert(p.a() == 10);
assert(p.b() == 1);
}
{
typedef std::weibull_distribution<> D;
typedef D::param_type param_type;
param_type p(10, 5);
assert(p.a() == 10);
assert(p.b() == 5);
}
}

37
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/param_eq.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// {
// class param_type;
#include <random>
#include <limits>
#include <cassert>
int main()
{
{
typedef std::weibull_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::weibull_distribution<> D;
typedef D::param_type param_type;
param_type p1(0.75, .5);
param_type p2(0.5, .5);
assert(p1 != p2);
}
}

28
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/param_types.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// {
// class param_type;
#include <random>
#include <type_traits>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::param_type param_type;
typedef param_type::distribution_type distribution_type;
static_assert((std::is_same<D, distribution_type>::value), "");
}
}

30
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/set_param.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution;
// void param(const param_type& parm);
#include <random>
#include <cassert>
int main()
{
{
typedef std::weibull_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);
}
}

34
test/numerics/rand/rand.dis/rand.dist.pois/rand.dist.pois.weibull/types.pass.cpp Normal file
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//===----------------------------------------------------------------------===//
//
// 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 weibull_distribution
// {
// public:
// // types
// typedef RealType result_type;
#include <random>
#include <type_traits>
int main()
{
{
typedef std::weibull_distribution<> D;
typedef D::result_type result_type;
static_assert((std::is_same<result_type, double>::value), "");
}
{
typedef std::weibull_distribution<float> D;
typedef D::result_type result_type;
static_assert((std::is_same<result_type, float>::value), "");
}
}