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# std::experimental::ranges::IndirectRelation

From cppreference.com
< cpp‎ | experimental‎ | ranges

Defined in header `<experimental/ranges/iterator>` |  |
template <class F, class I1, class I2 = I1> concept bool IndirectRelation() { return ranges::Readable<I1>() && ranges::Readable<I2>() && ranges::Relation<F, ranges::value_type_t<I1>, ranges::value_type_t<I2>>() && ranges::Relation<F, ranges::value_type_t<I1>, ranges::reference_t<I2>>() && ranges::Relation<F, ranges::reference_t<I1>, ranges::value_type_t<I2>>() && ranges::Relation<F, ranges::reference_t<I1>, ranges::reference_t<I2>>() && ranges::Relation<F, ranges::iter_common_reference_t<I1>, ranges::iter_common_reference_t<I2>>(); } |  | (ranges TS)

| This section is incomplete Reason: add description and extra caveats

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