https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121245
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |ppalka at gcc dot gnu.org
--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
I thought that too about _InputIterator constraints, but it seems it's allowed
by [container.reqmnts]/69:
The behavior of certain container member functions and deduction guides
depends on whether types qualify as input iterators or allocators.
The extent to which an implementation determines that a type cannot be
an input iterator is unspecified, except that as a minimum integral
types shall not qualify as input iterators.
