Class param_type . Boost , The Boost C++ Libraries BoostBook Documentation Subset , Class template beta_distribution

Class param_type

boost::random::beta_distribution::param_type

Synopsis

// In header: <boost/random/beta_distribution.hpp>

class param_type {
public:
  // types
  typedef beta_distribution distribution_type;
  // construct/copy/destruct
  explicit param_type(RealType = 1.0, RealType = 1.0);
  // public member functions
  RealType alpha() const;
  RealType beta() const;
  // friend functions
  template<typename CharT, typename Traits> 
    friend std::basic_ostream< CharT, Traits > & 
    operator<<(std::basic_ostream< CharT, Traits > &, const param_type &);
  template<typename CharT, typename Traits> 
    friend std::basic_istream< CharT, Traits > & 
    operator>>(std::basic_istream< CharT, Traits > &, const param_type &);
  friend bool operator==(const param_type &, const param_type &);
  friend bool operator!=(const param_type &, const param_type &);
};

Description

`param_type` public construct/copy/destruct

<
```
explicitparam_type(RealTypealpha=1.0,RealTypebeta=1.0);
```
>
Построение<param_type>из параметров «альфа» и «бета» распределения.
Требуется: альфа >0, бета >0

`param_type` public member functions

<
```
RealTypealpha()const;
```
>
Возвращает «альфа» параметр дистрибуции.
<
```
RealTypebeta()const;
```
>
Возвращает «бета» параметр распределения.

`param_type` friend functions

template<typenameCharT,typenameTraits>
 friendstd::basic_ostream<CharT,Traits>&
 operator<<(std::basic_ostream<CharT,Traits>&os,
            constparam_type&param);

Пишет<param_type><std::ostream>.

template<typenameCharT,typenameTraits>
 friendstd::basic_istream<CharT,Traits>&
 operator>>(std::basic_istream<CharT,Traits>&is,
            constparam_type&param);

Читает<param_type>из<std::istream>

<
```
friendbooloperator==(constparam_type&lhs,constparam_type&rhs);
```
>
Возвращается истинно, если два набора параметров одинаковы.
<
```
friendbooloperator!=(constparam_type&lhs,constparam_type&rhs);
```
>
Возвращается истинно, если два набора параметров различны.

Статья Class param_type раздела The Boost C++ Libraries BoostBook Documentation Subset Class template beta_distribution может быть полезна для разработчиков на c++ и boost.

Class param_type

Boost , The Boost C++ Libraries BoostBook Documentation Subset , Class template beta_distribution

Boost C++ Libraries

Class param_type

Synopsis

Description

param_type public construct/copy/destruct

param_type public member functions

param_type friend functions

`param_type` public construct/copy/destruct

`param_type` public member functions

`param_type` friend functions