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-rw-r--r--contrib/llvm-project/libcxx/include/__random/negative_binomial_distribution.h232
1 files changed, 102 insertions, 130 deletions
diff --git a/contrib/llvm-project/libcxx/include/__random/negative_binomial_distribution.h b/contrib/llvm-project/libcxx/include/__random/negative_binomial_distribution.h
index 57b7a71de21e..580c74d46440 100644
--- a/contrib/llvm-project/libcxx/include/__random/negative_binomial_distribution.h
+++ b/contrib/llvm-project/libcxx/include/__random/negative_binomial_distribution.h
@@ -26,156 +26,128 @@ _LIBCPP_PUSH_MACROS
_LIBCPP_BEGIN_NAMESPACE_STD
-template<class _IntType = int>
-class _LIBCPP_TEMPLATE_VIS negative_binomial_distribution
-{
- static_assert(__libcpp_random_is_valid_inttype<_IntType>::value, "IntType must be a supported integer type");
+template <class _IntType = int>
+class _LIBCPP_TEMPLATE_VIS negative_binomial_distribution {
+ static_assert(__libcpp_random_is_valid_inttype<_IntType>::value, "IntType must be a supported integer type");
+
public:
- // types
- typedef _IntType result_type;
-
- class _LIBCPP_TEMPLATE_VIS param_type
- {
- result_type __k_;
- double __p_;
- public:
- typedef negative_binomial_distribution distribution_type;
-
- _LIBCPP_HIDE_FROM_ABI
- explicit param_type(result_type __k = 1, double __p = 0.5)
- : __k_(__k), __p_(__p) {}
-
- _LIBCPP_HIDE_FROM_ABI
- result_type k() const {return __k_;}
- _LIBCPP_HIDE_FROM_ABI
- double p() const {return __p_;}
-
- friend _LIBCPP_HIDE_FROM_ABI
- bool operator==(const param_type& __x, const param_type& __y)
- {return __x.__k_ == __y.__k_ && __x.__p_ == __y.__p_;}
- friend _LIBCPP_HIDE_FROM_ABI
- bool operator!=(const param_type& __x, const param_type& __y)
- {return !(__x == __y);}
- };
+ // types
+ typedef _IntType result_type;
+
+ class _LIBCPP_TEMPLATE_VIS param_type {
+ result_type __k_;
+ double __p_;
+
+ public:
+ typedef negative_binomial_distribution distribution_type;
+
+ _LIBCPP_HIDE_FROM_ABI explicit param_type(result_type __k = 1, double __p = 0.5) : __k_(__k), __p_(__p) {}
+
+ _LIBCPP_HIDE_FROM_ABI result_type k() const { return __k_; }
+ _LIBCPP_HIDE_FROM_ABI double p() const { return __p_; }
+
+ friend _LIBCPP_HIDE_FROM_ABI bool operator==(const param_type& __x, const param_type& __y) {
+ return __x.__k_ == __y.__k_ && __x.__p_ == __y.__p_;
+ }
+ 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
- negative_binomial_distribution() : negative_binomial_distribution(1) {}
- _LIBCPP_HIDE_FROM_ABI
- explicit negative_binomial_distribution(result_type __k, double __p = 0.5)
- : __p_(__k, __p) {}
+ _LIBCPP_HIDE_FROM_ABI negative_binomial_distribution() : negative_binomial_distribution(1) {}
+ _LIBCPP_HIDE_FROM_ABI explicit negative_binomial_distribution(result_type __k, double __p = 0.5) : __p_(__k, __p) {}
#else
- _LIBCPP_HIDE_FROM_ABI
- explicit negative_binomial_distribution(result_type __k = 1,
- double __p = 0.5)
- : __p_(__k, __p) {}
+ _LIBCPP_HIDE_FROM_ABI explicit negative_binomial_distribution(result_type __k = 1, double __p = 0.5)
+ : __p_(__k, __p) {}
#endif
- _LIBCPP_HIDE_FROM_ABI
- explicit negative_binomial_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 k() const {return __p_.k();}
- _LIBCPP_HIDE_FROM_ABI
- double p() const {return __p_.p();}
-
- _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>::max();}
-
- friend _LIBCPP_HIDE_FROM_ABI
- bool operator==(const negative_binomial_distribution& __x,
- const negative_binomial_distribution& __y)
- {return __x.__p_ == __y.__p_;}
- friend _LIBCPP_HIDE_FROM_ABI
- bool operator!=(const negative_binomial_distribution& __x,
- const negative_binomial_distribution& __y)
- {return !(__x == __y);}
+ _LIBCPP_HIDE_FROM_ABI explicit negative_binomial_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 k() const { return __p_.k(); }
+ _LIBCPP_HIDE_FROM_ABI double p() const { return __p_.p(); }
+
+ _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>::max(); }
+
+ friend _LIBCPP_HIDE_FROM_ABI bool
+ operator==(const negative_binomial_distribution& __x, const negative_binomial_distribution& __y) {
+ return __x.__p_ == __y.__p_;
+ }
+ friend _LIBCPP_HIDE_FROM_ABI bool
+ operator!=(const negative_binomial_distribution& __x, const negative_binomial_distribution& __y) {
+ return !(__x == __y);
+ }
};
template <class _IntType>
-template<class _URNG>
-_IntType
-negative_binomial_distribution<_IntType>::operator()(_URNG& __urng, const param_type& __pr)
-{
- static_assert(__libcpp_random_is_valid_urng<_URNG>::value, "");
- result_type __k = __pr.k();
- double __p = __pr.p();
- // When the number of bits in _IntType is small, we are too likely to
- // overflow __f below to use this technique.
- if (__k <= 21 * __p && sizeof(_IntType) > 1)
- {
- bernoulli_distribution __gen(__p);
- result_type __f = 0;
- result_type __s = 0;
- while (__s < __k)
- {
- if (__gen(__urng))
- ++__s;
- else
- ++__f;
- }
- _LIBCPP_ASSERT_UNCATEGORIZED(__f >= 0,
- "std::negative_binomial_distribution should never produce negative values. "
- "This is almost certainly a signed integer overflow issue on __f.");
- return __f;
+template <class _URNG>
+_IntType negative_binomial_distribution<_IntType>::operator()(_URNG& __urng, const param_type& __pr) {
+ static_assert(__libcpp_random_is_valid_urng<_URNG>::value, "");
+ result_type __k = __pr.k();
+ double __p = __pr.p();
+ // When the number of bits in _IntType is small, we are too likely to
+ // overflow __f below to use this technique.
+ if (__k <= 21 * __p && sizeof(_IntType) > 1) {
+ bernoulli_distribution __gen(__p);
+ result_type __f = 0;
+ result_type __s = 0;
+ while (__s < __k) {
+ if (__gen(__urng))
+ ++__s;
+ else
+ ++__f;
}
- return poisson_distribution<result_type>(gamma_distribution<double>
- (__k, (1-__p)/__p)(__urng))(__urng);
+ _LIBCPP_ASSERT_UNCATEGORIZED(
+ __f >= 0,
+ "std::negative_binomial_distribution should never produce negative values. "
+ "This is almost certainly a signed integer overflow issue on __f.");
+ return __f;
+ }
+ return poisson_distribution<result_type>(gamma_distribution<double>(__k, (1 - __p) / __p)(__urng))(__urng);
}
template <class _CharT, class _Traits, class _IntType>
_LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>&
-operator<<(basic_ostream<_CharT, _Traits>& __os,
- const negative_binomial_distribution<_IntType>& __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);
- return __os << __x.k() << __sp << __x.p();
+operator<<(basic_ostream<_CharT, _Traits>& __os, const negative_binomial_distribution<_IntType>& __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);
+ return __os << __x.k() << __sp << __x.p();
}
template <class _CharT, class _Traits, class _IntType>
_LIBCPP_HIDE_FROM_ABI basic_istream<_CharT, _Traits>&
-operator>>(basic_istream<_CharT, _Traits>& __is,
- negative_binomial_distribution<_IntType>& __x)
-{
- typedef negative_binomial_distribution<_IntType> _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 __k;
- double __p;
- __is >> __k >> __p;
- if (!__is.fail())
- __x.param(param_type(__k, __p));
- return __is;
+operator>>(basic_istream<_CharT, _Traits>& __is, negative_binomial_distribution<_IntType>& __x) {
+ typedef negative_binomial_distribution<_IntType> _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 __k;
+ double __p;
+ __is >> __k >> __p;
+ if (!__is.fail())
+ __x.param(param_type(__k, __p));
+ return __is;
}
_LIBCPP_END_NAMESPACE_STD
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-01 22:49:05 +0000