From Jason Turner

[range.zip.transform]

Diff to HTML by rtfpessoa

tmp/tmp77dm377c/{from.md → to.md} RENAMED
@@ -129,11 +129,11 @@ namespace std::ranges {
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  constexpr iterator(Parent& parent, ziperator<Const> inner); // exposition only
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  public:
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  using iterator_category = see belownc; // not always present
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- using iterator_concept = typename ziperator<Const>::iterator_concept;
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  using value_type =
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  remove_cvref_t<invoke_result_t<maybe-const<Const, F>&,
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  range_reference_t<maybe-const<Const, Views>>...>>;
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  using difference_type = range_difference_t<Base>;
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  constexpr iterator(Parent& parent, ziperator<Const> inner); // exposition only
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  public:
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  using iterator_category = see belownc; // not always present
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+ using iterator_concept = ziperator<Const>::iterator_concept;
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  using value_type =
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  remove_cvref_t<invoke_result_t<maybe-const<Const, F>&,
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  range_reference_t<maybe-const<Const, Views>>...>>;
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  using difference_type = range_difference_t<Base>;
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