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Diffstat (limited to 'libcxx/docs/ReleaseNotes/22.rst')
| -rw-r--r-- | libcxx/docs/ReleaseNotes/22.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libcxx/docs/ReleaseNotes/22.rst b/libcxx/docs/ReleaseNotes/22.rst index 0fd7e53..25d33a9 100644 --- a/libcxx/docs/ReleaseNotes/22.rst +++ b/libcxx/docs/ReleaseNotes/22.rst @@ -44,6 +44,7 @@ Implemented Papers - P3223R2: Making ``std::istream::ignore`` less surprising (`Github <https://llvm.org/PR148178>`__) - P3060R3: Add ``std::views::indices(n)`` (`Github <https://llvm.org/PR148175>`__) - P2835R7: Expose ``std::atomic_ref``'s object address (`Github <https://llvm.org/PR118377>`__) +- P2944R3: Comparisons for ``reference_wrapper`` (`Github <https://llvm.org/PR105424>`__) - P3168R2: Give ``std::optional`` Range Support (`Github <https://llvm.org/PR105430>`__) Improvements and New Features @@ -61,6 +62,7 @@ Improvements and New Features has been improved by up to 3x - The performance of ``insert(iterator, iterator)`` of ``map``, ``set``, ``multimap`` and ``multiset`` has been improved by up to 2.5x +- The performance of ``erase(iterator, iterator)`` in the unordered containers has been improved by up to 1.9x - The performance of ``map::insert_or_assign`` has been improved by up to 2x - ``ofstream::write`` has been optimized to pass through large strings to system calls directly instead of copying them in chunks into a buffer. @@ -74,6 +76,8 @@ Improvements and New Features - The ``std::{fill, fill_n}`` and ``std::ranges::{fill, fill_n}`` algorithms have been optimized for segmented iterators, resulting in a performance improvement of at least 10x for ``std::deque<int>`` iterators and ``std::join_view<std::vector<std::vector<int>>>`` iterators. +- The ``std::generate`` and ``std::generate_n`` algorithms have been optimized for segmented iterators, resulting in a + performance improvement for ``std::deque<short>`` and ``std::join_view<vector<vector<short>>>`` iterators. Deprecations and Removals ------------------------- |