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Avoid aliasing in merge scan

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Ion Gaztañaga
2026-03-29 15:24:41 +02:00
parent 7595cb9a08
commit 40570911bc
1 changed files with 3 additions and 1 deletions
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include/boost/container/experimental/segmented_merge.hpp
+3 -1
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@@ -43,9 +43,10 @@ struct merge_default_less
};
template <class FwdIt, class Sent, class InIter2, class Sent2, class OutIter, class Comp>
OutIter merge_scan(FwdIt first, Sent last, InIter2& first2, Sent2 last2, OutIter result, Comp comp,
OutIter merge_scan(FwdIt first, Sent last, InIter2& first2_out, Sent2 last2, OutIter result, Comp comp,
non_segmented_iterator_tag)
{
InIter2 first2 = first2_out;
while(first != last && first2 != last2) {
if(comp(*first2, *first)) {
*result = *first2;
@@ -57,6 +58,7 @@ OutIter merge_scan(FwdIt first, Sent last, InIter2& first2, Sent2 last2, OutIter
}
++result;
}
first2_out = first2;
return (segmented_copy)(first, last, result);
}