2.0 KiB
2.0 KiB
[iterator.concept.input]
24 Iterators library [iterators]
24.3 Iterator requirements [iterator.requirements]
24.3.4 Iterator concepts [iterator.concepts]
24.3.4.9 Concept input_iterator [iterator.concept.input]
The input_iterator concept defines requirements for a type whose referenced values can be read (from the requirement forindirectly_readable ([iterator.concept.readable])) and which can be both pre- and post-incremented.
[Note 1:
Unlike the Cpp17InputIterator requirements ([input.iterators]), the input_iterator concept does not need equality comparison since iterators are typically compared to sentinels.
â end note]
templateconcept input_iterator =input_or_output_iterator &&indirectly_readable &&requires { typename ITER_CONCEPT(I); } &&derived_from<ITER_CONCEPT(I), input_iterator_tag>;