[libcxx-commits] [libcxx] [libc++] Disallow std::prev(non_cpp17_bidi_iterator) (PR #112102)

[via libcxx-commits]

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@@ -35,6 +39,13 @@ prev(_InputIter __x, typename iterator_traits<_InputIter>::difference_type __n =
   return __x;
 }
 
+template <class _BidirectionalIterator,
+          __enable_if_t<__has_bidirectional_iterator_category<_BidirectionalIterator>::value, int> = 0>
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huixie90 wrote:

sure. stick to two overloads approach with both enable if on the "input_iterator_tag" and added `static_assert` on the second overload

https://github.com/llvm/llvm-project/pull/112102