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std::pmr::memory_resource::do_is_equal – std::pmr::memory_resource::do_is_equal Synopsis virtual bool do_is_equal(const std::pmr::memory_resource &other) const noexcept = 0; (since C++ 17) Compares *this for equality with other. Two memory_resources compare equal if and only if memory allocated from one memory_resource can be deallocated from the other and vice versa. Notes The most-derived type of other may not match the most…
std::pmr::memory_resource::do_deallocate – std::pmr::memory_resource::do_deallocate Synopsis virtual void do_deallocate(void *p, std::size_t bytes, std::size_t alignment) = 0; (since C++ 17) Deallocates the storage pointed to by p. p must have been returned by a prior call to allocate(bytes, alignment) on a memory_resource that compares equal to *this, and the storage it points to must not yet have been…
std::pmr::memory_resource::do_allocate – std::pmr::memory_resource::do_allocate Synopsis virtual void *do_allocate(std::size_t bytes, std::size_t alignment) = 0; (since C++ 17) Allocates storage with a size of at least bytes bytes, aligned to the specified alignment. alignment shall be a power of two. Exceptions Throws an exception if storage of the requested size and alignment cannot be obtained. Defect reports The…
std::pmr::memory_resource::deallocate – std::pmr::memory_resource::deallocate Synopsis void deallocate(void *p, std::size_t bytes, (since C++ 17) std::size_t alignment = alignof(std::max_align_t)); Deallocates the storage pointed to by p. p shall have been returned by a prior call to allocate(bytes, alignment) on a memory_resource that compares equal to *this, and the storage it points to shall not yet have been deallocated….
std::pmr::memory_resource::allocate – std::pmr::memory_resource::allocate Synopsis void *allocate(std::size_t bytes, (since C++ 17) std::size_t alignment = alignof(std::max_align_t)); (until C++ 20) [[nodiscard]] void *allocate(std::size_t bytes, (since C++ 20) std::size_t alignment = alignof(std::max_align_t)); Allocates storage with a size of at least bytes bytes.The returned storage is aligned to the specified alignment if such alignment is supported, and to alignof(std::max_align_t) otherwise….
std::pmr::memory_resource – std::pmr::memory_resource Synopsis Defined in header <memory_resource> class memory_resource; (since C++17) The class std::pmr::memory_resource is an abstract interface to an unbounded set of classes encapsulating memory resources. Member functions constructor constructs a new memory_resource (public member function) (implicitly declared) destructor destructs an memory_resource (virtual public member function) [virtual] operator= Implicitly declared copy assignment operator…
std::pmr::get_default_resource – std::pmr::get_default_resource Synopsis Defined in header <memory_resource> std::pmr::memory_resource* get_default_resource() noexcept; (since C++17) Gets the default memory resource pointer. The default memory resource pointer is used by certain facilities when an explicit memory resource is not supplied. The initial default memory resource pointer is the return value of std::pmr::new_delete_resource. This function is thread-safe. Previous call…
std::plus<void> – std::plus<void> Synopsis Defined in header<functional> template <> (since C++ 14) class plus<void>; std::plus<> is a specialization of std::plus with parameter and return type deduced. Member types Member type Definition is_transparent /* unspecified */ Member functions returns the sum of two arguments operator() (public member function) std::plus<>::operator() template< class T, class U> constexpr auto…
std::placeholders::_1,std::placeholders::_2,…,std::placeholders::_N – std::placeholders::_1,std::placeholders::_2,…,std::placeholders::_N Synopsis Defined in header <functional> /*see below*/ _1; /*see below*/ _2; . . /*see below*/ _N; The std::placeholders namespace contains the placeholder objects [_1, . . . _N] where N is an implementation defined maximum number. When used as an argument in a std::bind expression, the placeholder objects are stored in the…
std::placeholders – Synopsis Variables const _Placeholder< 1 > _1 const _Placeholder< 10 > _10 const _Placeholder< 11 > _11 const _Placeholder< 12 > _12 const _Placeholder< 13 > _13 const _Placeholder< 14 > _14 const _Placeholder< 15 > _15 const _Placeholder< 16 > _16 const _Placeholder< 17 > _17 const _Placeholder< 18 > _18 const…
std::piecewise_linear_distribution< _RealType >::param_type – Synopsis Public Types typedef piecewise_linear_distribution < _RealType > distribution_type" Public Member Functions template<typename _InputIteratorB , typename _InputIteratorW > param_type (_InputIteratorB __bfirst, _InputIteratorB __bend, _InputIteratorW __wbegin) template<typename _Func > param_type (initializer_list< _RealType > __bl, _Func __fw) template<typename _Func > param_type (size_t __nw, _RealType __xmin, _RealType __xmax, _Func __fw) param_type (const param_type &)=default…
std::piecewise_linear_distribution<RealType>::reset – std::piecewise_linear_distribution<RealType>::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::piecewise_linear_distribution<RealType>::piecewise_linear_distribution – std::piecewise_linear_distribution<RealType>::piecewise_linear_distribution Synopsis piecewise_linear_distribution(); (1) (since C++11) template< class InputIt1, class InputIt2 > piecewise_linear_distribution( InputIt1 first_i, InputIt1 last_i, (2) (since C++11) InputIt2 first_w ); template< class UnaryOperation > piecewise_linear_distribution( std::initializer_list<RealType> ilist, (3) (since C++11) UnaryOperation fw ); template< class UnaryOperation > piecewise_linear_distribution( std::size_t nw, (4) (since C++11) RealType xmin, RealType xmax, UnaryOperation fw );…
std::piecewise_linear_distribution<RealType>::param – std::piecewise_linear_distribution<RealType>::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::piecewise_linear_distribution<RealType>::operator() – std::piecewise_linear_distribution<RealType>::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::piecewise_linear_distribution<RealType>::min – std::piecewise_linear_distribution<RealType>::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::piecewise_linear_distribution<RealType>::max – std::piecewise_linear_distribution<RealType>::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::piecewise_linear_distribution<RealType>::intervals,densities – std::piecewise_linear_distribution<RealType>::intervals,densities Synopsis std::vector<RealType> intervals() const; (1) (since C++11) std::vector<RealType> densities() const; (2) (since C++11) Returns the distribution parameters. 1) Returns the list of boundaries of the intervals. 2) Returns the list of probability densities at the boundaries of the intervals. Parameters (none) Return value The distribution parameters: 1) The list of boundaries of…
std::piecewise_linear_distribution – std::piecewise_linear_distribution Synopsis Defined in header <random> template< class RealType = double > (since C++11) class piecewise_linear_distribution; std::piecewise_linear_distribution produces random floating-point numbers, which are distributed according to a linear probability density function within each of the several subintervals [b i, b i+1). The distribution is such that the probability density at each interval boundary…
std::piecewise_construct_t – std::piecewise_construct_t Synopsis Defined in header<utility> struct piecewise_construct_t { }; (since C++ 11)(until C++ 17) struct piecewise_construct_t { explicit piecewise_construct_t() = default; }; (since C++ 17) std::piecewise_construct_t is an empty struct tag type used to disambiguate between different functions that take two tuple arguments. The overloads that do not use std::piecewise_construct_t assume that each…