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libcxx: backport llvm/llvm-project#158347

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https://github.com/llvm/llvm-project/pull/158347
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Alex Rønne Petersen 2025-10-17 14:59:22 +02:00
parent 2357ae06dd
commit 751375f3ca
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1 changed files with 7 additions and 2 deletions
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9
lib/libcxx/include/__ranges/join_view.h
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@ -410,8 +410,13 @@ struct __segmented_iterator_traits<_JoinViewIterator> {
static constexpr _LIBCPP_HIDE_FROM_ABI _JoinViewIterator
__compose(__segment_iterator __seg_iter, __local_iterator __local_iter) {
return _JoinViewIterator(
std::move(__seg_iter).__get_data(), std::move(__seg_iter).__get_iter(), std::move(__local_iter));
auto&& __parent = std::move(__seg_iter).__get_data();
auto&& __outer = std::move(__seg_iter).__get_iter();
if (__local_iter == ranges::end(*__outer)) {
++__outer;
return _JoinViewIterator(*__parent, __outer);
}
return _JoinViewIterator(__parent, __outer, std::move(__local_iter));
}
};