https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106612

            Bug ID: 106612
           Summary: ranges::iter_move does not consider iterator's value
                    categories
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hewillk at gmail dot com
  Target Milestone: ---

The following case should be a constraint not satisfied rather than a hard
error since we cannot dereference the I of an rvalue.

#include <ranges>

struct I {
  using difference_type = std::ptrdiff_t;
  using value_type = int;
  value_type& operator*() const &;
  void operator*() && = delete;
  I& operator++();
  I operator++(int);
  bool operator==(const I&) const;
};

int main() {
  return std::ranges::iter_move(I{});
}

https://godbolt.org/z/xP4GWT3qv

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