Linux Manuals

std::piecewise_construct – std::piecewise_construct Synopsis constexpr piecewise_construct_t piecewise_construct (since C++11) = std::piecewise_construct_t(); (until C++17) inline constexpr piecewise_construct_t piecewise_construct (since C++17) = std::piecewise_construct_t(); The constant std::piecewise_construct is an instance of an empty struct tag type std::piecewise_construct_t. Example // Run this code #include <iostream> #include <utility> #include <tuple> struct Foo { Foo(std::tuple<int, float>) { std::cout << "Constructed a…

std::piecewise_constant_distribution< _RealType >::param_type – Synopsis Public Types typedef piecewise_constant_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 > __bi, _Func __fw) template<typename _Func > param_type (size_t __nw, _RealType __xmin, _RealType __xmax, _Func __fw) param_type (const param_type &)=default…

std::piecewise_constant_distribution<RealType>::reset – std::piecewise_constant_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_constant_distribution<RealType>::piecewise_constant_distribution – std::piecewise_constant_distribution<RealType>::piecewise_constant_distribution Synopsis piecewise_constant_distribution(); (1) (since C++11) template< class InputIt1, class InputIt2 > piecewise_constant_distribution( InputIt1 first_i, InputIt1 last_i, (2) (since C++11) InputIt2 first_w ); template< class UnaryOperation > piecewise_constant_distribution( std::initializer_list<RealType> bl, (3) (since C++11) UnaryOperation fw ); template< class UnaryOperation > piecewise_constant_distribution( std::size_t nw, (4) (since C++11) RealType xmin, RealType xmax, UnaryOperation fw );…

std::piecewise_constant_distribution<RealType>::param – std::piecewise_constant_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_constant_distribution<RealType>::operator() – std::piecewise_constant_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 &params); 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_constant_distribution<RealType>::min – std::piecewise_constant_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_constant_distribution<RealType>::max – std::piecewise_constant_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_constant_distribution<RealType>::intervals,densities – std::piecewise_constant_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 of the intervals. Parameters (none) Return value The distribution parameters: 1) The list of boundaries of the intervals. 2)…

std::piecewise_constant_distribution – std::piecewise_constant_distribution Synopsis Defined in header <random> template< class RealType = double > (since C++11) class piecewise_constant_distribution; std::piecewise_constant_distribution produces random floating-point numbers, which are uniformly distributed within each of the several subintervals [b i, b i+1), each with its own weight w i. The set of interval boundaries and the set of weights are…

std::perror – std::perror Synopsis Defined in header<cstdio> void perror(const char *s); Prints a textual description of the error code currently stored in the system variable errno to stderr. The description is formed by concatenating the following components: * the contents of the null-terminated byte string pointed to by s, followed by ": " (unless s…

std::partition_point – std::partition_point Synopsis Defined in header <algorithm> template< class ForwardIt, class UnaryPredicate > (since C++11) ForwardIt partition_point( ForwardIt first, ForwardIt last, UnaryPredicate p ); (1) (until C++20) template< class ForwardIt, class UnaryPredicate > (since C++20) constexpr ForwardIt partition_point( ForwardIt first, ForwardIt last, UnaryPredicate p ); Examines the partitioned (as if by std::partition) range [first,…

std::partition_copy – std::partition_copy Synopsis Defined in header <algorithm> template< class InputIt, class OutputIt1, class OutputIt2, class UnaryPredicate > std::pair<OutputIt1, OutputIt2> (since C++11) partition_copy( InputIt first, InputIt last, (until C++20) OutputIt1 d_first_true, OutputIt2 d_first_false, UnaryPredicate p ); template< class InputIt, class OutputIt1, class OutputIt2, class UnaryPredicate > constexpr std::pair<OutputIt1, OutputIt2> (1) (since C++20) partition_copy( InputIt first,…

std::partition – std::partition Synopsis Defined in header <algorithm> template< class BidirIt, class UnaryPredicate > (until C++11) BidirIt partition( BidirIt first, BidirIt last, UnaryPredicate p ); template< class ForwardIt, class UnaryPredicate > (since C++11) ForwardIt partition( ForwardIt first, ForwardIt last, UnaryPredicate p ); (until C++20) template< class ForwardIt, class UnaryPredicate > (1) (since C++20) constexpr ForwardIt…

std::partial_sum – std::partial_sum Synopsis Defined in header <numeric> template< class InputIt, class OutputIt > (1) OutputIt partial_sum( InputIt first, InputIt last, OutputIt d_first ); template< class InputIt, class OutputIt, class BinaryOperation > OutputIt partial_sum( InputIt first, InputIt last, OutputIt d_first, (2) BinaryOperation op ); Computes the partial sums of the elements in the subranges of…

std::partial_sort_copy – std::partial_sort_copy Synopsis Defined in header<algorithm> template <class InputIt, class RandomIt> RandomIt partial_sort_copy(InputIt first, InputIt last, (until C++ 20) RandomIt d_first, RandomIt d_last); template <class InputIt, class RandomIt> constexpr RandomIt partial_sort_copy(InputIt first, InputIt last, (since C++ 20) RandomIt d_first, RandomIt d_last); template <class ExecutionPolicy, class ForwardIt, class RandomIt> RandomIt partial_sort_copy(ExecutionPolicy &&policy, ForwardIt first, ForwardIt…

std::partial_sort – std::partial_sort Synopsis Defined in header<algorithm> template <class RandomIt> (until C++ 20) void partial_sort(RandomIt first, RandomIt middle, RandomIt last); template <class RandomIt> (since C++ 20) constexpr void partial_sort(RandomIt first, RandomIt middle, RandomIt last); template <class ExecutionPolicy, class RandomIt> void partial_sort(ExecutionPolicy &&policy, (2)(since C++ 17) RandomIt first, RandomIt middle, RandomIt last); template <class RandomIt, class…

std::partial_ordering – std::partial_ordering Synopsis Defined in header <compare> class partial_ordering; (since C++20) The class type std::partial_ordering is the result type of a three-way_comparison that * admits all six relational operators (==, !=, <, <=, >, >=) * does not imply substitutability: if a is equivalent to b, f(a) may not be equivalent to f(b), where…

std::partial_order – std::partial_order Synopsis Defined in header<compare> template <class T> (since C++ 20) constexpr std::partial_ordering partial_order(const T &a, const T &b); Compares two values using 3-way comparison and produces a result of type std::partial_ordering Specifically, * If the expression a <=> b is well-formed and its result is convertible to std::partial_ordering, returns that result. *…

std::pair<T1,T2>::swap – std::pair<T1,T2>::swap Synopsis void swap(pair &other) noexcept(/* see below */); (since C++ 11)(until C++ 20) constexpr void swap(pair &other) noexcept(/* see below */); (since C++ 20) Swaps first with other.first and second with other.second. Parameters other – pair of values to swap Return value (none) Exceptions noexcept specification: noexcept( noexcept(swap(first, other.first)) && (until C++17)…