random (class normal_distribution<>): Add.
2006-06-24 Paolo Carlini <pcarlini@suse.de> * include/tr1/random (class normal_distribution<>): Add. * include/tr1/random.tcc (normal_distribution<>::operator()): Define. * include/tr1/random.tcc (struct _Max): Remove, "inline" in the only user, mersenne_twister<>::max(). * include/tr1/random.tcc (struct _Shift): Move... * include/tr1/random: ... here. * include/tr1/random.tcc (linear_congruential<>:: linear_congruential(unsigned long), linear_congruential<>:: linear_congruential(_Gen&), mersenne_twister<>::max())): Move inline... * include/tr1/random: ... here. * include/tr1/random (exponential_distribution<>:: exponential_distribution(const result_type&)): Add missing _GLIBCXX_DEBUG_ASSERT. * testsuite/tr1/5_numerical_facilities/random/ exponential_distribution/requirements/typedefs.cc: New. * testsuite/tr1/5_numerical_facilities/random/ normal_distribution/requirements/typedefs.cc: Likewise. * testsuite/tr1/5_numerical_facilities/random/ bernoulli_distribution/requirements/typedefs.cc: Likewise. * testsuite/tr1/5_numerical_facilities/random/ geometric_distribution/requirements/typedefs.cc: Likewise. From-SVN: r114982
This commit is contained in:
parent
762bd0488f
commit
7f09067fef
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@ -1,3 +1,32 @@
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2006-06-24 Paolo Carlini <pcarlini@suse.de>
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* include/tr1/random (class normal_distribution<>): Add.
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* include/tr1/random.tcc (normal_distribution<>::operator()): Define.
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* include/tr1/random.tcc (struct _Max): Remove, "inline" in the
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only user, mersenne_twister<>::max().
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* include/tr1/random.tcc (struct _Shift): Move...
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* include/tr1/random: ... here.
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* include/tr1/random.tcc (linear_congruential<>::
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linear_congruential(unsigned long), linear_congruential<>::
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linear_congruential(_Gen&), mersenne_twister<>::max())): Move inline...
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* include/tr1/random: ... here.
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* include/tr1/random (exponential_distribution<>::
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exponential_distribution(const result_type&)): Add missing
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_GLIBCXX_DEBUG_ASSERT.
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* testsuite/tr1/5_numerical_facilities/random/
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exponential_distribution/requirements/typedefs.cc: New.
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* testsuite/tr1/5_numerical_facilities/random/
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normal_distribution/requirements/typedefs.cc: Likewise.
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* testsuite/tr1/5_numerical_facilities/random/
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bernoulli_distribution/requirements/typedefs.cc: Likewise.
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* testsuite/tr1/5_numerical_facilities/random/
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geometric_distribution/requirements/typedefs.cc: Likewise.
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2006-06-23 Benjamin Kosnik <bkoz@redhat.com>
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2006-06-23 Benjamin Kosnik <bkoz@redhat.com>
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PR libstdc++/27984
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PR libstdc++/27984
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@ -124,6 +124,15 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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return __return_value;
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return __return_value;
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}
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}
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template<typename _UIntType, int __w, bool =
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__w != std::numeric_limits<_UIntType>::digits>
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struct _Shift
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{ static const _UIntType __value = 0; };
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template<typename _UIntType, int __w>
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struct _Shift<_UIntType, __w, true>
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{ static const _UIntType __value = _UIntType(1) << __w; };
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} // namespace std::tr1::_Private
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} // namespace std::tr1::_Private
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@ -301,7 +310,9 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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*
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*
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* @param __s The initial seed value.
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* @param __s The initial seed value.
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*/
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*/
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explicit linear_congruential(unsigned long __s = 1);
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explicit
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linear_congruential(unsigned long __x0 = 1)
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{ this->seed(__x0); }
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/**
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/**
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* Constructs a %linear_congruential random number generator engine
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* Constructs a %linear_congruential random number generator engine
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@ -310,7 +321,8 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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* @param __g The seed generator function.
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* @param __g The seed generator function.
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*/
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*/
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template<class _Gen>
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template<class _Gen>
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linear_congruential(_Gen& __g);
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linear_congruential(_Gen& __g)
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{ this->seed(__g); }
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/**
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/**
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* Reseeds the %linear_congruential random number generator engine
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* Reseeds the %linear_congruential random number generator engine
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@ -513,7 +525,8 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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{ return 0; };
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{ return 0; };
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result_type
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result_type
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max() const;
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max() const
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{ return _Private::_Shift<_UIntType, __w>::__value - 1; }
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result_type
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result_type
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operator()();
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operator()();
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*/
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*/
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explicit
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explicit
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exponential_distribution(const result_type& __lambda = result_type(1))
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exponential_distribution(const result_type& __lambda = result_type(1))
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: _M_lambda(__lambda) { }
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: _M_lambda(__lambda)
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{
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_GLIBCXX_DEBUG_ASSERT(_M_lambda > 0);
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}
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/**
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/**
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* Gets the inverse scale parameter of the distribution.
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* Gets the inverse scale parameter of the distribution.
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result_type _M_lambda;
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result_type _M_lambda;
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};
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};
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/**
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* @brief A normal continuous distribution for random numbers.
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*
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* The formula for the normal probability mass function is
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* @f$ p(x) = \frac{1}{\sigma \sqrt{2 \pi}}
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* e^{- \frac{{x - mean}^ {2}}{2 \sigma ^ {2}} } @f$.
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*/
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template<typename _RealType = double>
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class normal_distribution
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{
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public:
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// types
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typedef _RealType input_type;
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typedef _RealType result_type;
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public:
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/**
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* Constructs a normal distribution with parameters @f$ mean @f$ and
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* @f$ \sigma @f$.
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*/
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explicit
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normal_distribution(const result_type& __mean = result_type(0),
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const result_type& __sigma = result_type(1))
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: _M_mean(__mean), _M_sigma(__sigma), _M_saved_available(false)
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{
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_GLIBCXX_DEBUG_ASSERT(_M_sigma > 0);
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}
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/**
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* Gets the mean of the distribution.
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*/
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_RealType
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mean() const
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{ return _M_mean; }
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/**
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* Gets the @f$ \sigma @f$ of the distribution.
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*/
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_RealType
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sigma() const
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{ return _M_sigma; }
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/**
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* Resets the distribution.
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*/
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void
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reset()
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{ _M_saved_available = false; }
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template<class _UniformRandomNumberGenerator>
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result_type
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operator()(_UniformRandomNumberGenerator& __urng);
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/**
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* Inserts a %normal_distribution random number distribution
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* @p __x into the output stream @p __os.
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*
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* @param __os An output stream.
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* @param __x A %normal_distribution random number distribution.
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*
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* @returns The output stream with the state of @p __x inserted or in
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* an error state.
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*/
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template<typename _CharT, typename _Traits>
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friend std::basic_ostream<_CharT, _Traits>&
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operator<<(std::basic_ostream<_CharT, _Traits>& __os,
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const normal_distribution& __x)
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{
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return __os << __x.mean() << " " << __x.sigma()
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<< " " << __x._M_saved << " " << __x._M_saved_available;
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}
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/**
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* Extracts a %normal_distribution random number distribution
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* @p __u from the input stream @p __is.
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*
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* @param __is An input stream.
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* @param __u A %normal_distribution random number generator engine.
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*
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* @returns The input stream with @p __u extracted or in an error state.
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*/
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template<typename _CharT, typename _Traits>
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friend std::basic_istream<_CharT, _Traits>&
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operator>>(std::basic_istream<_CharT, _Traits>& __is,
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normal_distribution& __u)
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{
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return __is >> __u._M_mean >> __u._M_sigma
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>> __u._M_saved >> __u._M_saved_available;
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}
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private:
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result_type _M_mean;
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result_type _M_sigma;
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result_type _M_saved;
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bool _M_saved_available;
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};
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/* @} */ // group tr1_random_distributions_continuous
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/* @} */ // group tr1_random_distributions_continuous
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/* @} */ // group tr1_random_distributions
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/* @} */ // group tr1_random_distributions
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/* @} */ // group tr1_random
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/* @} */ // group tr1_random
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@ -27,8 +27,6 @@
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// invalidate any other reasons why the executable file might be covered by
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// invalidate any other reasons why the executable file might be covered by
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// the GNU General Public License.
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// the GNU General Public License.
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#include <limits>
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namespace std
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namespace std
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{
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{
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_GLIBCXX_BEGIN_NAMESPACE(tr1)
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_GLIBCXX_BEGIN_NAMESPACE(tr1)
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@ -96,40 +94,9 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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__mod(_Tp __x)
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__mod(_Tp __x)
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{ return _Mod<_Tp, __a, __c, __m, __m == 0>::__calc(__x); }
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{ return _Mod<_Tp, __a, __c, __m, __m == 0>::__calc(__x); }
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template<typename _UIntType, int __w, bool =
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__w != std::numeric_limits<_UIntType>::digits>
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struct _Shift
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{ static const _UIntType __value = 0; };
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template<typename _UIntType, int __w>
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struct _Shift<_UIntType, __w, true>
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{ static const _UIntType __value = _UIntType(1) << __w; };
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// The maximum value that will fit in @p __w bits of @p _UIntType.
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template<typename _UIntType, int __w>
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struct _Max
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{ static const _UIntType __value = _Shift<_UIntType, __w>::__value - 1; };
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} // namespace _Private
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} // namespace _Private
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/**
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* Constructs the LCR engine with integral seed @p __x0.
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*/
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template<class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
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linear_congruential<_UIntType, __a, __c, __m>::
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linear_congruential(unsigned long __x0)
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{ this->seed(__x0); }
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/**
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* Constructs the LCR engine with seed generated from @p __g.
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*/
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template<class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m>
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template<class _Gen>
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linear_congruential<_UIntType, __a, __c, __m>::
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linear_congruential(_Gen& __g)
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{ this->seed(__g); }
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/**
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/**
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* Seeds the LCR with integral value @p __x0, adjusted so that the
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* Seeds the LCR with integral value @p __x0, adjusted so that the
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* ring identity is never a member of the convergence set.
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* ring identity is never a member of the convergence set.
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@ -239,17 +206,6 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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_M_p = state_size;
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_M_p = state_size;
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}
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}
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template<class _UIntType, int __w, int __n, int __m, int __r,
|
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_UIntType __a, int __u, int __s,
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_UIntType __b, int __t, _UIntType __c, int __l>
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typename
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mersenne_twister<_UIntType, __w, __n, __m, __r, __a, __u, __s,
|
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__b, __t, __c, __l>::result_type
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mersenne_twister<_UIntType, __w, __n, __m, __r, __a, __u, __s,
|
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__b, __t, __c, __l>::
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max() const
|
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{ return _Private::_Max<_UIntType, __w>::__value; }
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|
|
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template<class _UIntType, int __w, int __n, int __m, int __r,
|
template<class _UIntType, int __w, int __n, int __m, int __r,
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_UIntType __a, int __u, int __s,
|
_UIntType __a, int __u, int __s,
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||||||
_UIntType __b, int __t, _UIntType __c, int __l>
|
_UIntType __b, int __t, _UIntType __c, int __l>
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|
@ -396,5 +352,47 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
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return _M_b();
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return _M_b();
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}
|
}
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|
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||||||
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/**
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* Classic Box-Muller method.
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|
*
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||||||
|
* Reference:
|
||||||
|
* Box, G. E. P. and Muller, M. E. "A Note on the Generation of
|
||||||
|
* Random Normal Deviates." Ann. Math. Stat. 29, 610-611, 1958.
|
||||||
|
*/
|
||||||
|
template<typename _RealType>
|
||||||
|
template<class _UniformRandomNumberGenerator>
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||||||
|
typename normal_distribution<_RealType>::result_type
|
||||||
|
normal_distribution<_RealType>::
|
||||||
|
operator()(_UniformRandomNumberGenerator& __urng)
|
||||||
|
{
|
||||||
|
result_type __ret;
|
||||||
|
|
||||||
|
if (_M_saved_available)
|
||||||
|
{
|
||||||
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_M_saved_available = false;
|
||||||
|
__ret = _M_saved;
|
||||||
|
}
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||||||
|
else
|
||||||
|
{
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||||||
|
result_type __x, __y, __r2;
|
||||||
|
do
|
||||||
|
{
|
||||||
|
__x = result_type(2.0) * __urng() - result_type(1.0);
|
||||||
|
__y = result_type(2.0) * __urng() - result_type(1.0);
|
||||||
|
__r2 = __x * __x + __y * __y;
|
||||||
|
}
|
||||||
|
while (__r2 > result_type(1.0) || __r2 == result_type(0));
|
||||||
|
|
||||||
|
const result_type __mult = std::sqrt(-result_type(2.0)
|
||||||
|
* std::log(__r2) / __r2);
|
||||||
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_M_saved = __x * __mult;
|
||||||
|
_M_saved_available = true;
|
||||||
|
__ret = __y * __mult;
|
||||||
|
}
|
||||||
|
|
||||||
|
return __ret * _M_sigma + _M_mean;
|
||||||
|
}
|
||||||
|
|
||||||
_GLIBCXX_END_NAMESPACE
|
_GLIBCXX_END_NAMESPACE
|
||||||
}
|
}
|
||||||
|
|
|
@ -0,0 +1,37 @@
|
||||||
|
// { dg-do compile }
|
||||||
|
//
|
||||||
|
// 2006-06-24 Paolo Carlini <pcarlini@suse.de>
|
||||||
|
//
|
||||||
|
// Copyright (C) 2006 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 2, 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 COPYING. If not, write to the Free
|
||||||
|
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
||||||
|
// USA.
|
||||||
|
|
||||||
|
// 5.1.7.2 Class template bernoulli_distribution [tr.rand.dist.bern]
|
||||||
|
// 5.1.1 [7] Table 17
|
||||||
|
|
||||||
|
#include <tr1/random>
|
||||||
|
|
||||||
|
void
|
||||||
|
test01()
|
||||||
|
{
|
||||||
|
using namespace std::tr1;
|
||||||
|
|
||||||
|
typedef bernoulli_distribution test_type;
|
||||||
|
|
||||||
|
typedef test_type::input_type input_type;
|
||||||
|
typedef test_type::result_type result_type;
|
||||||
|
}
|
|
@ -0,0 +1,37 @@
|
||||||
|
// { dg-do compile }
|
||||||
|
//
|
||||||
|
// 2006-06-24 Paolo Carlini <pcarlini@suse.de>
|
||||||
|
//
|
||||||
|
// Copyright (C) 2006 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 2, 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 COPYING. If not, write to the Free
|
||||||
|
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
||||||
|
// USA.
|
||||||
|
|
||||||
|
// 5.1.7.7 Class template exponential_distribution [tr.rand.dist.exp]
|
||||||
|
// 5.1.1 [7] Table 17
|
||||||
|
|
||||||
|
#include <tr1/random>
|
||||||
|
|
||||||
|
void
|
||||||
|
test01()
|
||||||
|
{
|
||||||
|
using namespace std::tr1;
|
||||||
|
|
||||||
|
typedef exponential_distribution<double> test_type;
|
||||||
|
|
||||||
|
typedef test_type::input_type input_type;
|
||||||
|
typedef test_type::result_type result_type;
|
||||||
|
}
|
|
@ -0,0 +1,37 @@
|
||||||
|
// { dg-do compile }
|
||||||
|
//
|
||||||
|
// 2006-06-24 Paolo Carlini <pcarlini@suse.de>
|
||||||
|
//
|
||||||
|
// Copyright (C) 2006 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 2, 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 COPYING. If not, write to the Free
|
||||||
|
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
||||||
|
// USA.
|
||||||
|
|
||||||
|
// 5.1.7.3 Class template geometric_distribution [tr.rand.dist.geom]
|
||||||
|
// 5.1.1 [7] Table 17
|
||||||
|
|
||||||
|
#include <tr1/random>
|
||||||
|
|
||||||
|
void
|
||||||
|
test01()
|
||||||
|
{
|
||||||
|
using namespace std::tr1;
|
||||||
|
|
||||||
|
typedef geometric_distribution<int, double> test_type;
|
||||||
|
|
||||||
|
typedef test_type::input_type input_type;
|
||||||
|
typedef test_type::result_type result_type;
|
||||||
|
}
|
|
@ -0,0 +1,37 @@
|
||||||
|
// { dg-do compile }
|
||||||
|
//
|
||||||
|
// 2006-06-24 Paolo Carlini <pcarlini@suse.de>
|
||||||
|
//
|
||||||
|
// Copyright (C) 2006 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 2, 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 COPYING. If not, write to the Free
|
||||||
|
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
||||||
|
// USA.
|
||||||
|
|
||||||
|
// 5.1.7.8 Class template normal_distribution [tr.rand.dist.norm]
|
||||||
|
// 5.1.1 [7] Table 17
|
||||||
|
|
||||||
|
#include <tr1/random>
|
||||||
|
|
||||||
|
void
|
||||||
|
test01()
|
||||||
|
{
|
||||||
|
using namespace std::tr1;
|
||||||
|
|
||||||
|
typedef normal_distribution<double> test_type;
|
||||||
|
|
||||||
|
typedef test_type::input_type input_type;
|
||||||
|
typedef test_type::result_type result_type;
|
||||||
|
}
|
|
@ -20,7 +20,7 @@
|
||||||
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
|
||||||
// USA.
|
// USA.
|
||||||
|
|
||||||
// 5.1.7.6 Class template uniform_int [tr.rand.dist.runif]
|
// 5.1.7.6 Class template uniform_real [tr.rand.dist.runif]
|
||||||
// 5.1.1 [7] Table 17
|
// 5.1.1 [7] Table 17
|
||||||
|
|
||||||
#include <tr1/random>
|
#include <tr1/random>
|
||||||
|
|
Loading…
Reference in New Issue