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Section: 22.5.1 [reverse.iterators] Status: Resolved Submitter: Jeffrey Yasskin Opened: 2012-10-30 Last modified: 2017-03-13
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std::reverse_iterator::reverse_iterator(Iterator) should be constexpr so that other constexpr functions can return reverse_iterators. Of the other methods, the other constructors, base(), operator+, operator-, operator, and the non-member operators can probably also be constexpr.operator* cannot be constexpr because it involves an assignment to a member variable. Discussion starting with c++std-lib-33282 indicated that it would be useful to make reverse_iterator a literal type despite this restriction on its use at compile time.
Proposed resolution:This issue was Resolved by paper P0031R0 adopted at Jacksonville, 2016.