Add isdone(itr::ReadEachIterator, state...) #39662
Merged
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This prevents
isempty
and friends from advancing the iterator when they shouldn't.Note:
collect(readeach(io, T))
can throw an exception ifio
isn't a multiple of the right size.isempty
will still returnfalse
, even if the next call toiterate
will throw an exception.Similar to: #27412