commit cea050d2c900751c6cb7adb9fce4731df01f445a
author Arthur O'Dwyer <arthur.j.odwyer@gmail.com> Sat Dec 26 01:39:03 2020 -0500
committer Copybara-Service <copybara-worker@google.com> Mon Jan 25 10:02:58 2021 -0800
tree 06b6b924184d20c9fb8f8139a5714973a0aa1cd6
parent 8b38f966a6d79a1f7566f799221362141b02df30

[libc++] Implement [P0769] "Add shift to algorithm" (shift_left, shift_right)

I believe this is a complete implementation of std::shift_left and std::shift_right from
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0769r2.pdf

Some test cases copied-with-modification from D60027.

Differential Revision: https://reviews.llvm.org/D93819

GitOrigin-RevId: 3fbd3eaf28c1e6f2bb9519022611829dfe3b0464

docs/FeatureTestMacroTable.rst

diff --git a/docs/FeatureTestMacroTable.rst b/docs/FeatureTestMacroTable.rst
index b5db1e0..ed05488 100644
--- a/docs/FeatureTestMacroTable.rst
+++ b/docs/FeatureTestMacroTable.rst
@@ -266,7 +266,7 @@
     ------------------------------------------------- -----------------
     ``__cpp_lib_semaphore``                           ``201907L``
     ------------------------------------------------- -----------------
-    ``__cpp_lib_shift``                               *unimplemented*
+    ``__cpp_lib_shift``                               ``201806L``
     ------------------------------------------------- -----------------
     ``__cpp_lib_smart_ptr_for_overwrite``             *unimplemented*
     ------------------------------------------------- -----------------