diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__random/fisher_f_distribution.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__random/fisher_f_distribution.h | 194 |
1 files changed, 83 insertions, 111 deletions
diff --git a/contrib/llvm-project/libcxx/include/__random/fisher_f_distribution.h b/contrib/llvm-project/libcxx/include/__random/fisher_f_distribution.h index 8da689a3b0f4..cd170b3af388 100644 --- a/contrib/llvm-project/libcxx/include/__random/fisher_f_distribution.h +++ b/contrib/llvm-project/libcxx/include/__random/fisher_f_distribution.h @@ -24,139 +24,111 @@ _LIBCPP_PUSH_MACROS _LIBCPP_BEGIN_NAMESPACE_STD -template<class _RealType = double> -class _LIBCPP_TEMPLATE_VIS fisher_f_distribution -{ +template <class _RealType = double> +class _LIBCPP_TEMPLATE_VIS fisher_f_distribution { static_assert(__libcpp_random_is_valid_realtype<_RealType>::value, "RealType must be a supported floating-point type"); public: - // types - typedef _RealType result_type; - - class _LIBCPP_TEMPLATE_VIS param_type - { - result_type __m_; - result_type __n_; - public: - typedef fisher_f_distribution distribution_type; - - _LIBCPP_HIDE_FROM_ABI - explicit param_type(result_type __m = 1, result_type __n = 1) - : __m_(__m), __n_(__n) {} - - _LIBCPP_HIDE_FROM_ABI - result_type m() const {return __m_;} - _LIBCPP_HIDE_FROM_ABI - result_type n() const {return __n_;} - - friend _LIBCPP_HIDE_FROM_ABI - bool operator==(const param_type& __x, const param_type& __y) - {return __x.__m_ == __y.__m_ && __x.__n_ == __y.__n_;} - friend _LIBCPP_HIDE_FROM_ABI - bool operator!=(const param_type& __x, const param_type& __y) - {return !(__x == __y);} - }; + // types + typedef _RealType result_type; + + class _LIBCPP_TEMPLATE_VIS param_type { + result_type __m_; + result_type __n_; + + public: + typedef fisher_f_distribution distribution_type; + + _LIBCPP_HIDE_FROM_ABI explicit param_type(result_type __m = 1, result_type __n = 1) : __m_(__m), __n_(__n) {} + + _LIBCPP_HIDE_FROM_ABI result_type m() const { return __m_; } + _LIBCPP_HIDE_FROM_ABI result_type n() const { return __n_; } + + friend _LIBCPP_HIDE_FROM_ABI bool operator==(const param_type& __x, const param_type& __y) { + return __x.__m_ == __y.__m_ && __x.__n_ == __y.__n_; + } + friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const param_type& __x, const param_type& __y) { return !(__x == __y); } + }; private: - param_type __p_; + param_type __p_; public: - // constructor and reset functions + // constructor and reset functions #ifndef _LIBCPP_CXX03_LANG - _LIBCPP_HIDE_FROM_ABI - fisher_f_distribution() : fisher_f_distribution(1) {} - _LIBCPP_HIDE_FROM_ABI - explicit fisher_f_distribution(result_type __m, result_type __n = 1) - : __p_(param_type(__m, __n)) {} + _LIBCPP_HIDE_FROM_ABI fisher_f_distribution() : fisher_f_distribution(1) {} + _LIBCPP_HIDE_FROM_ABI explicit fisher_f_distribution(result_type __m, result_type __n = 1) + : __p_(param_type(__m, __n)) {} #else - _LIBCPP_HIDE_FROM_ABI - explicit fisher_f_distribution(result_type __m = 1, result_type __n = 1) - : __p_(param_type(__m, __n)) {} + _LIBCPP_HIDE_FROM_ABI explicit fisher_f_distribution(result_type __m = 1, result_type __n = 1) + : __p_(param_type(__m, __n)) {} #endif - _LIBCPP_HIDE_FROM_ABI - explicit fisher_f_distribution(const param_type& __p) - : __p_(__p) {} - _LIBCPP_HIDE_FROM_ABI - void reset() {} - - // generating functions - template<class _URNG> - _LIBCPP_HIDE_FROM_ABI - result_type operator()(_URNG& __g) - {return (*this)(__g, __p_);} - template<class _URNG> - _LIBCPP_HIDE_FROM_ABI result_type operator()(_URNG& __g, const param_type& __p); - - // property functions - _LIBCPP_HIDE_FROM_ABI - result_type m() const {return __p_.m();} - _LIBCPP_HIDE_FROM_ABI - result_type n() const {return __p_.n();} - - _LIBCPP_HIDE_FROM_ABI - param_type param() const {return __p_;} - _LIBCPP_HIDE_FROM_ABI - void param(const param_type& __p) {__p_ = __p;} - - _LIBCPP_HIDE_FROM_ABI - result_type min() const {return 0;} - _LIBCPP_HIDE_FROM_ABI - result_type max() const {return numeric_limits<result_type>::infinity();} - - friend _LIBCPP_HIDE_FROM_ABI - bool operator==(const fisher_f_distribution& __x, - const fisher_f_distribution& __y) - {return __x.__p_ == __y.__p_;} - friend _LIBCPP_HIDE_FROM_ABI - bool operator!=(const fisher_f_distribution& __x, - const fisher_f_distribution& __y) - {return !(__x == __y);} + _LIBCPP_HIDE_FROM_ABI explicit fisher_f_distribution(const param_type& __p) : __p_(__p) {} + _LIBCPP_HIDE_FROM_ABI void reset() {} + + // generating functions + template <class _URNG> + _LIBCPP_HIDE_FROM_ABI result_type operator()(_URNG& __g) { + return (*this)(__g, __p_); + } + template <class _URNG> + _LIBCPP_HIDE_FROM_ABI result_type operator()(_URNG& __g, const param_type& __p); + + // property functions + _LIBCPP_HIDE_FROM_ABI result_type m() const { return __p_.m(); } + _LIBCPP_HIDE_FROM_ABI result_type n() const { return __p_.n(); } + + _LIBCPP_HIDE_FROM_ABI param_type param() const { return __p_; } + _LIBCPP_HIDE_FROM_ABI void param(const param_type& __p) { __p_ = __p; } + + _LIBCPP_HIDE_FROM_ABI result_type min() const { return 0; } + _LIBCPP_HIDE_FROM_ABI result_type max() const { return numeric_limits<result_type>::infinity(); } + + friend _LIBCPP_HIDE_FROM_ABI bool operator==(const fisher_f_distribution& __x, const fisher_f_distribution& __y) { + return __x.__p_ == __y.__p_; + } + friend _LIBCPP_HIDE_FROM_ABI bool operator!=(const fisher_f_distribution& __x, const fisher_f_distribution& __y) { + return !(__x == __y); + } }; template <class _RealType> -template<class _URNG> -_RealType -fisher_f_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p) -{ - static_assert(__libcpp_random_is_valid_urng<_URNG>::value, ""); - gamma_distribution<result_type> __gdm(__p.m() * result_type(.5)); - gamma_distribution<result_type> __gdn(__p.n() * result_type(.5)); - return __p.n() * __gdm(__g) / (__p.m() * __gdn(__g)); +template <class _URNG> +_RealType fisher_f_distribution<_RealType>::operator()(_URNG& __g, const param_type& __p) { + static_assert(__libcpp_random_is_valid_urng<_URNG>::value, ""); + gamma_distribution<result_type> __gdm(__p.m() * result_type(.5)); + gamma_distribution<result_type> __gdn(__p.n() * result_type(.5)); + return __p.n() * __gdm(__g) / (__p.m() * __gdn(__g)); } template <class _CharT, class _Traits, class _RT> _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>& -operator<<(basic_ostream<_CharT, _Traits>& __os, - const fisher_f_distribution<_RT>& __x) -{ - __save_flags<_CharT, _Traits> __lx(__os); - typedef basic_ostream<_CharT, _Traits> _OStream; - __os.flags(_OStream::dec | _OStream::left | _OStream::fixed | - _OStream::scientific); - _CharT __sp = __os.widen(' '); - __os.fill(__sp); - __os << __x.m() << __sp << __x.n(); - return __os; +operator<<(basic_ostream<_CharT, _Traits>& __os, const fisher_f_distribution<_RT>& __x) { + __save_flags<_CharT, _Traits> __lx(__os); + typedef basic_ostream<_CharT, _Traits> _OStream; + __os.flags(_OStream::dec | _OStream::left | _OStream::fixed | _OStream::scientific); + _CharT __sp = __os.widen(' '); + __os.fill(__sp); + __os << __x.m() << __sp << __x.n(); + return __os; } template <class _CharT, class _Traits, class _RT> _LIBCPP_HIDE_FROM_ABI basic_istream<_CharT, _Traits>& -operator>>(basic_istream<_CharT, _Traits>& __is, - fisher_f_distribution<_RT>& __x) -{ - typedef fisher_f_distribution<_RT> _Eng; - typedef typename _Eng::result_type result_type; - typedef typename _Eng::param_type param_type; - __save_flags<_CharT, _Traits> __lx(__is); - typedef basic_istream<_CharT, _Traits> _Istream; - __is.flags(_Istream::dec | _Istream::skipws); - result_type __m; - result_type __n; - __is >> __m >> __n; - if (!__is.fail()) - __x.param(param_type(__m, __n)); - return __is; +operator>>(basic_istream<_CharT, _Traits>& __is, fisher_f_distribution<_RT>& __x) { + typedef fisher_f_distribution<_RT> _Eng; + typedef typename _Eng::result_type result_type; + typedef typename _Eng::param_type param_type; + __save_flags<_CharT, _Traits> __lx(__is); + typedef basic_istream<_CharT, _Traits> _Istream; + __is.flags(_Istream::dec | _Istream::skipws); + result_type __m; + result_type __n; + __is >> __m >> __n; + if (!__is.fail()) + __x.param(param_type(__m, __n)); + return __is; } _LIBCPP_END_NAMESPACE_STD |