https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92206
gcc-bugs at marehr dot dialup.fu-berlin.de changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |gcc-bugs at marehr dot
dialup.fu-b
| |erlin.de
--- Comment #6 from gcc-bugs at marehr dot dialup.fu-berlin.de ---
```c++
#include <utility>
template <typename, typename> struct is_swappable_with;
template <typename I, typename R = decltype(std::declval<I>)>
using iter_reference_t_ = R;
template <typename R> using iter_reference_t = iter_reference_t_<R>;
template <typename I0, typename I1>
std::enable_if_t<
is_swappable_with<iter_reference_t<I0>, iter_reference_t<I1>>::value>
operator00;
```
Another one, reduced from range-v3.
