[libcxx-commits] [libcxx] [libc++][C++26] `constexpr std::stable_sort` (part of P2562) (PR #105379)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

FYI I'm trying a different approach in #100914 - which should allow adding `_LIBCPP_CONSTEXPR_SINCE_CXX26` directly.

https://github.com/llvm/llvm-project/pull/105379