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Activate reverse_copy optimization under C++20/C++23 mode #2416

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merged 5 commits into from
Jan 19, 2022
Merged

Activate reverse_copy optimization under C++20/C++23 mode #2416

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f17eceb
As @miscco said
AlexGuteniev Dec 13, 2021
0382e1a
as you wish boss
AlexGuteniev Dec 13, 2021
69b362e
Merge remote-tracking branch 'upstream/main' into fix_reverse_copy_op…
AlexGuteniev Dec 18, 2021
6ec580a
Merge remote-tracking branch 'upstream/main' into fix_reverse_copy_op…
AlexGuteniev Jan 12, 2022
9c03b78
Merge remote-tracking branch 'upstream/main' into fix_reverse_copy_op…
AlexGuteniev Jan 14, 2022
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2 changes: 1 addition & 1 deletion stl/inc/algorithm
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Original file line number Diff line number Diff line change
Expand Up @@ -4359,7 +4359,7 @@ _CONSTEXPR20 _OutIt reverse_copy(_BidIt _First, _BidIt _Last, _OutIt _Dest) {
using _Elem = remove_reference_t<_Iter_ref_t<remove_const_t<decltype(_UFirst)>>>;
using _DestElem = remove_reference_t<_Iter_ref_t<decltype(_UDest)>>;
constexpr bool _Allow_vectorization = conjunction_v<is_same<remove_const_t<_Elem>, _DestElem>,
bool_constant<_Iterators_are_contiguous<decltype(_UFirst), decltype(_UDest)>>, is_trivially_copyable<_Elem>,
bool_constant<_Iterators_are_contiguous<decltype(_ULast), decltype(_UDest)>>, is_trivially_copyable<_Elem>,
negation<is_volatile<_Elem>>>;
constexpr size_t _Nx = sizeof(_Elem);

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