std::experimental::ranges::OutputIterator

Defined in header <experimental/ranges/iterator>
template < class I, class T > concept bool OutputIterator =     Iterator<I> && Writable<I, T> &&     requires(I i, T&& t) { *i++ = std::forward <T> (t) ; // not required to be equality preserving } ;		(ranges TS)

The OutputIterator concept is a refinement of Iterator, adding the requirement that it can be used to write values of values of type and value category encoded by T (via Writable). EqualityComparable

Let E be an expression such that decltype((E)) is T, and i be a dereferenceable object of type I. OutputIterator<I, T> is satisfied only if *i++ = E; has effects equivalent to *i = E; ++i;

Equality preservation

An expression is equality preserving if it results in equal outputs given equal inputs.

• The inputs to an expression consist of its operands.
• The outputs of an expression consist of its result and all operands modified by the expression (if any).

Every expression required to be equality preserving is further required to be stable

Notes

Unlike the output iterator requirements in the C++ standard, OutputIterator in the Ranges TS does not require that the iterator category tag be defined.

Algorithms on output iterators should be single pass.