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std::experimental::observer_ptr<W>::operatorbool – std::experimental::observer_ptr<W>::operatorbool Synopsis constexpr explicit operator bool() const noexcept; (library fundamentals TS v2) Checks whether *this has an associated watched object, i.e. whether get() != nullptr. Parameters (none) Return value true if *this has an associated watched object, false otherwise. Example  This section is incomplete  Reason: no example See also     returns a pointer to…

std::experimental::observer_ptr<W>::operator*,std::experimental::observer_ptr<W>::operator-> – std::experimental::observer_ptr<W>::operator*,std::experimental::observer_ptr<W>::operator-> Synopsis constexpr std::add_lvalue_reference_t<element_type> operator*() const; (1) (library fundamentals TS v2) constexpr element_type* operator->() const noexcept; (2) (library fundamentals TS v2) operator* and operator-> provide access to the object watched by *this. The behavior of operator* is undefined if get() == nullptr. Parameters (none) Return value 1) Returns the object watched by *this,…

std::experimental::observer_ptr<W>::observer_ptr – std::experimental::observer_ptr<W>::observer_ptr Synopsis constexpr observer_ptr() noexcept; (1)(library fundamentals TS v2) constexpr observer_ptr(nullptr_t) noexcept; explicit observer_ptr(element_type *p) noexcept; (2)(library fundamentals TS v2) template <class W2> (3)(library fundamentals TS v2) observer_ptr(observer_ptr<W2> other) noexcept; observer_ptr(const observer_ptr &other) = default; (4)(library fundamentals TS v2)(implicitly declared) observer_ptr(observer_ptr &&other) = default; (5)(library fundamentals TS v2)(implicitly declared) 1) Constructs an observer_ptr…

std::experimental::observer_ptr<W>::get – std::experimental::observer_ptr<W>::get Synopsis constexpr element_type* get() const noexcept; (library fundamentals TS v2) Returns a pointer to the watched object or nullptr if no object is watched. Parameters (none) Return value Pointer to the watched object or nullptr if no object is watched. Example  This section is incomplete  Reason: no example See also         returns a…

std::experimental::observer_ptr – std::experimental::observer_ptr Synopsis Defined in header <experimental/memory> template< class W > (library fundamentals TS v2) class observer_ptr; std::experimental::observer_ptr is a non-owning pointer, or observer. The observer stores a pointer to a second object, known as the watched object. An observer_ptr may also have no watched object. An observer is not responsible in any way…

std::experimental::nullopt_t – std::experimental::nullopt_t Synopsis Defined in header <experimental/optional> struct nullopt_t; (library fundamentals TS) std::experimental::nullopt_t is an empty class type used to indicate optional type with uninitialized state. In particular, std::experimental::optional has a constructor with nullopt_t as a single argument, which creates an optional that does not contain a value. std::experimental::nullopt_t must be a LiteralType and…

std::experimental::nullopt – std::experimental::nullopt Synopsis Defined in header <experimental/optional> constexpr nullopt_t nullopt{/*unspecified*/}; (library fundamentals TS) std::experimental::nullopt is a constant of type std::experimental::nullopt_t that is used to indicate optional type with uninitialized state. See also nullopt_t indicator of optional type with uninitialized state                           (class) (library fundamentals TS)

std::experimental::not_fn – std::experimental::not_fn Synopsis Defined in header <experimental/functional> template< class F> (library fundamentals TS v2) /*unspecified*/ not_fn( F&& f ); Creates a forwarding call wrapper that returns the complement of the callable object it holds. Parameters f – the object from which the Callable object held by the wrapper is constructed Return value Let FD…

std::experimental::nonesuch – std::experimental::nonesuch Synopsis Defined in header<experimental / type_traits> struct nonesuch { ~nonesuch() = delete; nonesuch(nonesuch const &) = delete; (library fundamentals TS v2) void operator=(nonesuch const &) = delete; }; std::experimental::nonesuch is a class type used by std::experimental::detected_t to indicate detection failure. nonesuch has no default constructor or initializer-list constructor, and is not an…

std::experimental::negation – std::experimental::negation Synopsis Defined in header<experimental / type_traits> template <class B> (1)(library fundamentals TS v2) struct negation; Forms the logical negation of the type trait B. The type negation<B> is a UnaryTypeTrait with a BaseCharacteristic of std::integral_constant<bool, !bool(B::value)>. Template parameters B – any type such that the expression bool(B::value) is a valid constant expression…

std::experimental::minmax – std::experimental::minmax Synopsis Defined in header<experimental / simd> template <class T, class Abi> std::pair<simd<T, Abi>, simd<T, Abi>> minmax(const simd<T, Abi> &a, const simd<T, Abi> &b) noexcept; Returns both the element-wise min result and element-wise max result. Parameters a – the first vector of elements for minmax b – the second vector of elements for…

std::experimental::min – std::experimental::min Synopsis Defined in header<experimental / simd> template <class T, class Abi> simd<T, Abi> min(const simd<T, Abi> &a, const simd<T, Abi> &b) noexcept; Parameters a – the first vector of elements for min b – the second vector of elements for min Return value The result of binary element-wise application of std::min(a[i], b[i])…

std::experimental::max – std::experimental::max Synopsis Defined in header<experimental / simd> template <class T, class Abi> simd<T, Abi> max(const simd<T, Abi> &a, const simd<T, Abi> &b) noexcept; Parameters a – the first vector of elements for max b – the second vector of elements for max Return value The result of binary element-wise application of std::max(a[i], b[i])…

std::experimental::make_ready_future – std::experimental::make_ready_future Synopsis Defined in header <experimental/future> template < class T > (1) (concurrency TS) future<V /* see below */> make_ready_future(T&& value); future<void> make_ready_future(); (2) (concurrency TS) 1) If std::decay_t<T> is std::reference_wrapper<X>, then the type V is X&, otherwise, V is std::decay_t<T>. Creates a shared state of type V that is immediately ready, with…

std::experimental::make_ostream_joiner – std::experimental::make_ostream_joiner Synopsis Defined in header <experimental/iterator> template <class charT, class traits, class DelimT> std::experimental::ostream_joiner<std::decay_t<DelimT>, charT, traits> (library fundamentals TS v2) make_ostream_joiner(std::basic_ostream<charT, traits>& os, DelimT&& delimiter); Creates an ostream_joiner object, deducing the template arguments from the types of the function arguments. Parameters os – the basic_ostream object that the iterator is to be associated…

std::experimental::make_optional – std::experimental::make_optional Synopsis Defined in header <experimental/optional> template< class T > constexpr optional<typename std::decay<T>::type> (library fundamentals TS) make_optional( T&& value ); Creates an optional object from value. Effectively calls optional<typename std::decay<T>::type>(std::forward<T>(value)) Parameters value – the value to construct optional object with Return value An optional object with value as the contained value. Exceptions Throws…

std::experimental::make_observer – std::experimental::make_observer Synopsis Defined in header <experimental/memory> template <class W> (library fundamentals TS v2) std::experimental::observer_ptr<W> make_observer(W* p) noexcept; Creates an observer_ptr object, deducing the template argument from the type of the function argument. Parameters p – pointer to the object to be watched by the observer_ptr object Return value A observer_ptr object, created as…

std::experimental::make_exceptional_future – std::experimental::make_exceptional_future Synopsis Defined in header<experimental / future> template <class T> (1)(concurrency TS) future<T> make_exceptional_future(std::exception_ptr ex); template <class T, class E> (2)(concurrency TS) future<T> make_exceptional_future(E ex); 1) Creates a shared state of type T that is immediately ready and stores the exception pointer ex, then return a future associated with that shared state, as…

std::experimental::make_array – std::experimental::make_array Synopsis Defined in header<experimental / array> template <class D = void, class… Types> (library fundamentals TS v2) constexpr std::array<VT /* see below */, sizeof…(Types)> make_array(Types &&…t); Creates a std::array whose size is equal to the number of arguments and whose elements are initialized from the corresponding arguments. Returns std::array<VT, sizeof…(Types)>{std::forward<Types>(t)…} If D…

std::experimental::lcm – std::experimental::lcm Synopsis Defined in header <experimental/numeric> template< class M, class N> (library fundamentals TS v2) constexpr std::common_type_t<M, N> lcm(M m, N n); Computes the least common multiple of the integers m and n. Parameters m, n – integer values Return value If either m or n is zero, returns zero. Otherwise, return the…