[libc++] Make std::stable_sort constexpr friendly (#110320)
Implementing `constexpr std::stable_sort`. This is part of P2562R1,
tracked via issue #105360.
Closes #119394
Co-authored-by: A. Jiang <[email protected]>
Co-authored-by: Louis Dionne <[email protected]>
diff --git a/libcxx/include/algorithm b/libcxx/include/algorithm
index e593ae2..7b4cb8e 100644
--- a/libcxx/include/algorithm
+++ b/libcxx/include/algorithm
@@ -1530,11 +1530,11 @@
sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
template <class RandomAccessIterator>
- void
+ constexpr void // constexpr in C++26
stable_sort(RandomAccessIterator first, RandomAccessIterator last);
template <class RandomAccessIterator, class Compare>
- void
+ constexpr void // constexpr in C++26
stable_sort(RandomAccessIterator first, RandomAccessIterator last, Compare comp);
template <class RandomAccessIterator>
