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std::pop_heap – std::pop_heap Synopsis Defined in header<algorithm> template <class RandomIt> (until C++ 20) void pop_heap(RandomIt first, RandomIt last); template <class RandomIt> (since C++ 20) constexpr void pop_heap(RandomIt first, RandomIt last); (1) template <class RandomIt, class Compare> (until C++ 20) void pop_heap(RandomIt first, RandomIt last, Compare comp); (2) template <class RandomIt, class Compare> (since C++ 20)…
std::polar(std::complex) – std::polar(std::complex) Synopsis Defined in header<complex> template <class T> complex<T> polar(const T &r, const T &theta = T()); Returns a complex number with magnitude r and phase angle theta. The behavior is undefined if r is negative or NaN, or if theta is infinite. Parameters r – magnitude theta – phase angle Return value…
std::poisson_distribution< _IntType >::param_type – Synopsis Public Types typedef poisson_distribution < _IntType > distribution_type" Public Member Functions param_type (double __mean=1.0) double mean () const Friends bool operator== (const param_type &__p1, const param_type &__p2) class poisson_distribution< _IntType > Detailed Description template<typename _IntType = int>struct std::poisson_distribution< _IntType >::param_type Parameter type. Definition at line 4439 of file random.h. Author…
std::poisson_distribution<IntType>::reset – std::poisson_distribution<IntType>::reset Synopsis void reset(); (since C++ 11) Resets the internal state of the distribution object. After a call to this function, the next call to operator() on the distribution object will not be dependent on previous calls to operator(). Parameters (none) Return value (none) Complexity Constant.
std::poisson_distribution<IntType>::poisson_distribution – std::poisson_distribution<IntType>::poisson_distribution Synopsis poisson_distribution() : poisson_distribution(1.0) {} (1) (since C++11) explicit poisson_distribution( double mean ); (2) (since C++11) explicit poisson_distribution( const param_type& params ); (3) (since C++11) Constructs a new distribution object. (2) uses mean as the distribution parameter. (3) uses params as the distribution parameter. Parameters mean – the μ distribution parameter (the…
std::poisson_distribution<IntType>::param – std::poisson_distribution<IntType>::param Synopsis param_type param() const; (1) (since C++11) void param( const param_type& params ); (2) (since C++11) Manages the associated distribution parameter set. 1) Returns the associated parameter set. 2) Sets the associated parameter set to params Parameters params – new contents of the associated parameter set Return value 1) The associated parameter…
std::poisson_distribution<IntType>::operator() – std::poisson_distribution<IntType>::operator() Synopsis template <class Generator> (1)(since C++ 11) result_type operator()(Generator &g); template <class Generator> (2)(since C++ 11) result_type operator()(Generator &g, const param_type ¶ms); Generates random numbers that are distributed according to the associated probability function. The entropy is acquired by calling g.operator(). The first version uses the associated parameter set, the second version…
std::poisson_distribution<IntType>::min – std::poisson_distribution<IntType>::min Synopsis result_type min() const; (since C++11) Returns the minimum value potentially generated by the distribution. Parameters (none) Return value The minimum value potentially generated by the distribution Complexity Constant. See also returns the maximum potentially generated value max (public member function)
std::poisson_distribution<IntType>::mean – std::poisson_distribution<IntType>::mean Synopsis double mean() const; (since C++ 11) Returns the μ parameter the distribution was constructed with. The parameter defines mean number of occurrences of the event. The default value is 1.0. Parameters (none) Return value Floating point value identifying the μ distribution parameter. See also gets or sets the distribution parameter object…
std::poisson_distribution<IntType>::max – std::poisson_distribution<IntType>::max Synopsis result_type max() const; (since C++11) Returns the maximum value potentially generated by the distribution. Parameters (none) Return value The maximum value potentially generated by the distribution. Complexity Constant. See also returns the minimum potentially generated value min (public member function)
std::poisson_distribution – std::poisson_distribution Synopsis Defined in header<random> template <class IntType = int> (since C++ 11) class poisson_distribution; Produces random non-negative integer values i, distributed according to discrete probability function: \(P(i | \mu) = \frac{e^{-\mu}\mu^i}{i!}\)P(i|μ) = e-μ ·μi i! The value obtained is the probability of exactly i occurrences of a random event if the expected,…
std::pointer_traits<Ptr>::to_address – std::pointer_traits<Ptr>::to_address Synopsis Defined in header <memory> static element_type* to_address(pointer p) noexcept; (1) (since C++20) (optional member of user-defined specialization) Constructs a raw pointer that references the same object as its pointer-like ("fancy pointer") argument. This function, if defined, is the inverse of pointer_to, and exists as the customization point to be called by…
std::pointer_traits<Ptr>::pointer_to – std::pointer_traits<Ptr>::pointer_to Synopsis Defined in header <memory> static pointer (1) (since C++11) pointer_to( element_type& r ); (member of pointer_traits<Ptr> specialization) static pointer (since C++11) pointer_to( element_type& r ) noexcept; (until C++20) (2) (member of pointer_traits<T*> specialization) static constexpr pointer (since C++20) pointer_to( element_type& r ) noexcept; (member of pointer_traits<T*> specialization) Constructs a dereferenceable pointer…
std::pointer_traits – std::pointer_traits Synopsis Defined in header <memory> template< class Ptr > struct pointer_traits; (1) (since C++11) template< class T > struct pointer_traits<T*>; (2) (since C++11) The pointer_traits class template provides the standardized way to access certain properties of pointer-like types (fancy_pointers, such as boost::interprocess::offset_ptr). The standard template std::allocator_traits relies on pointer_traits to determine the…
std::pointer_to_unary_function – std::pointer_to_unary_function Synopsis template< class Arg, (deprecated in C++11) class Result (removed in C++17) > class pointer_to_unary_function : public std::unary_function<Arg, Result>; std::pointer_to_unary_function is a function object that acts as a wrapper around a unary function. Member functions constructs a new pointer_to_unary_function object with the supplied function constructor (public member function) calls the stored function…
std::pointer_to_binary_function – std::pointer_to_binary_function Synopsis template< class Arg1, (deprecated in C++11) class Arg2, (removed in C++17) class Result > class pointer_to_binary_function : public std::binary_function<Arg1, Arg2, Result>; std::pointer_to_binary_function is a function object that acts as a wrapper around a binary function. Member functions constructs a new pointer_to_binary_function object with the supplied function constructor (public member function) calls…
std::pointer_safety – std::pointer_safety Synopsis Defined in header <memory> enum class pointer_safety { relaxed, preferred, (since C++11) strict }; The scoped enumeration type pointer_safety lists the pointer safety modes supported by C++ Enumeration constants pointer_safety::strict Only safely-derived pointers (pointers to objects allocated with new or subobjects thereof) may be dereferenced or deallocated. Garbage collector may be…
std::pmr::unsynchronized_pool_resource::upstream_resource – std::pmr::unsynchronized_pool_resource::upstream_resource Synopsis std::pmr::memory_resource* upstream_resource() const; (since C++17) Returns a pointer to the upstream memory resource. This is the same value as the upstream argument passed to the constructor of this object. See also Constructs a unsynchronized_pool_resource constructor (public member function)
std::pmr::unsynchronized_pool_resource::~unsynchronized_pool_resource – std::pmr::unsynchronized_pool_resource::~unsynchronized_pool_resource Synopsis virtual ~unsynchronized_pool_resource(); (since C++17) Destroys a unsynchronized_pool_resource. Deallocates all memory owned by this resource by calling this->release(). See also Release all allocated memory release (public member function)
std::pmr::unsynchronized_pool_resource::release – std::pmr::unsynchronized_pool_resource::release Synopsis void release(); (since C++ 17) Releases all memory owned by this resource by calling the deallocate function of the upstream memory resource as needed. Memory is released back to the upstream resource even if deallocate has not been called for some of the allocated blocks. See also deallocates memory deallocate (public…