[libcxx-commits] [libcxx] r370514 - Update libc++ release notes

Zoe Carver via libcxx-commits libcxx-commits at lists.llvm.org
Fri Aug 30 13:04:14 PDT 2019

Author: zoecarver
Date: Fri Aug 30 13:04:14 2019
New Revision: 370514

URL: http://llvm.org/viewvc/llvm-project?rev=370514&view=rev
Update libc++ release notes

This patch updates the libc++ release notes.
I have picked out several features/fixes/updates
that I think are worth mentioning.


Modified: libcxx/branches/release_90/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/libcxx/branches/release_90/docs/ReleaseNotes.rst?rev=370514&r1=370513&r2=370514&view=diff
--- libcxx/branches/release_90/docs/ReleaseNotes.rst (original)
+++ libcxx/branches/release_90/docs/ReleaseNotes.rst Fri Aug 30 13:04:14 2019
@@ -25,3 +25,36 @@ For more information about libc++, pleas
 What's New in Libc++ 9.0.0?
+* Minor fixes to ``std::chrono`` operators.
+* libc++ now correctly handles Objective-C++ ARC qualifiers in ``std::is_pointer``.
+* ``std::span`` general updates and fixes.
+* Updates to the ``std::abs`` implementation.
+* ``std::to_chars`` now adds leading zeros.
+* Ensure ``std::tuple`` is trivially constructible.
+* ``std::aligned_union`` now works in C++03.
+* Output of nullptr to ``std::basic_ostream`` is formatted properly.
+* Implemented P0608: sane variant converting constructor.
+* Added ``ssize`` function.
+* Added ``front`` and ``back`` methods in ``std::span``.
+* ``std::is_unbounded_array`` and ``std::is_bounded_array`` added to type traits.
+* ``std::atomic`` now includes many new features and specialization including improved Freestanding support.
+* Added ``std::midpoint`` and ``std::lerp`` math functions.
+* Added the function ``std::is_constant_evaluated``.
+* Erase-like algorithms now return size type.
+* Added ``contains`` method to container types.
+* ``std::swap`` is now a constant expression.
+* libc++ dropped support for GCC 4.9; we now support GCC 5.1 and above.
+* libc++ added explicit support for WebAssembly System Interface (WASI).
+* Progress towards full support of rvalues and variadics in C++03 mode. ``std::move`` and ``std::forward`` now both work in C++03 mode.

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