...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::random::beta_distribution::param_type
// 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 &); };
param_type
public
construct/copy/destructexplicit param_type(RealType alpha = 1.0, RealType beta = 1.0);
Constructs a
from the "alpha" and "beta" parameters of the distribution.param_type
Requires: alpha > 0, beta > 0
param_type
friend functionstemplate<typename CharT, typename Traits> friend std::basic_ostream< CharT, Traits > & operator<<(std::basic_ostream< CharT, Traits > & os, const param_type & param);
Writes a
to a param_type
std::ostream
.
template<typename CharT, typename Traits> friend std::basic_istream< CharT, Traits > & operator>>(std::basic_istream< CharT, Traits > & is, const param_type & param);
Reads a
from a param_type
std::istream
.
friend bool operator==(const param_type & lhs, const param_type & rhs);
Returns true if the two sets of parameters are the same.
friend bool operator!=(const param_type & lhs, const param_type & rhs);
Returns true if the two sets of parameters are the different.