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Further improve rstl::sort 

Thanks again GibHaltmannKill


Former-commit-id: 8efda4623a
This commit is contained in:
Henrique Gemignani Passos Lima 2022-11-28 18:03:59 +02:00
parent 15999e4cbb
commit 86002b1f41
1 changed files with 4 additions and 5 deletions
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9
include/rstl/algorithm.hpp
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@ -72,9 +72,10 @@ void sort(It first, It last, Cmp cmp) {
if (count <= 20) {
__insertion_sort(first, last, cmp);
} else {
It pivot = first + count / 2;
It end = last;
__sort3(*first, *(first + count / 2), *--end, cmp);
typename iterator_traits< It >::value_type value = *(first + count / 2);
__sort3(*first, *pivot, *--end, cmp);
typename iterator_traits< It >::value_type value = *pivot;
It it = first + 1;
--end;
while (true) {
@ -84,9 +85,7 @@ void sort(It first, It last, Cmp cmp) {
--end;
if (it >= end)
break;
iter_swap(it, end);
++it;
--end;
iter_swap(it++, end--);
}
sort(first, it, cmp);
sort(it, last, cmp);