# std::experimental::ranges::Mergeable

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< cpp‎ | experimental‎ | ranges

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`).

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