std::experimental::ranges::Mergeable

 

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IndirectlyMovable IndirectlyMovableStorable	IndirectlyCopyable IndirectlyCopyableStorable	IndirectlySwappable IndirectlyComparable	Permutable Mergeable Sortable
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difference_type value_type reference_trvalue_reference_titer_common_reference_t iterator_category	input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tag	ranges::iterator_traits std::iterator_traits<InputIterator>std::iterator_traits<OutputIterator>
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template< class I1, class I2, class Out, class R = ranges::less<>,           class P1 = ranges::identity, class P2 = ranges::identity > concept bool Mergeable =     InputIterator<I1> &&     InputIterator<I2> &&     WeaklyIncrementable<Out> &&     IndirectlyCopyable<I1, Out> &&     IndirectlyCopyable<I2, Out> &&     IndirectStrictWeakOrder<R, ranges::projected<I1, P1>, ranges::projected<I2, P2>>;		(ranges TS)

The Mergeable concept specifies the common requirements of algorithms that merge sorted sequences into an output sequence by copying the elements (for example, ranges::merge).