[libcxx-commits] [libcxx] 03e91ed - [libc++][NFC] Mark LWG2859 as "Nothing To Do" (#236127)

[via libcxx-commits]

Author: Lucas Mellone
Date: 2026-11-03T09:06:00+08:00
New Revision: 03e91edf5e1116de288aadcee4625b307786abd4

URL: https://github.com/llvm/llvm-project/commit/03e91edf5e1116de288aadcee4625b307786abd4
DIFF: https://github.com/llvm/llvm-project/commit/03e91edf5e1116de288aadcee4625b307786abd4.diff

LOG: [libc++][NFC] Mark LWG2859 as "Nothing To Do" (#236127)

LWG2859 only rewrites the definition of "reachable" in the Remarks
paragraph of `std::launder` precondition, relaxing the reachable set
with the pointer arithmetic scenario.

It does not change any observable behaviour of the library. No test
should be added because the precondition is not observable (a program
that is valid under the new wording was also valid under the old one,
and vice versa).

Closes: https://github.com/llvm/llvm-project/issues/100269

---------

Co-authored-by: A. Jiang <de34 at live.cn>

Added: 
    

Modified: 
    libcxx/docs/Status/Cxx20Issues.csv

Removed: 
    


################################################################################
diff  --git a/libcxx/docs/Status/Cxx20Issues.csv b/libcxx/docs/Status/Cxx20Issues.csv
index e4ff0f28b5d33c..998ef5fffa366d 100644
--- a/libcxx/docs/Status/Cxx20Issues.csv
+++ b/libcxx/docs/Status/Cxx20Issues.csv
@@ -190,7 +190,7 @@
 "`LWG3149 <https://wg21.link/LWG3149>`__","``DefaultConstructible``\  should require default initialization","2019-11 (Belfast)","|Complete|","13","`#103883 <https://github.com/llvm/llvm-project/issues/103883>`__",""
 "","","","","","",""
 "`LWG1203 <https://wg21.link/LWG1203>`__","More useful rvalue stream insertion","2020-02 (Prague)","|Complete|","12","`#103884 <https://github.com/llvm/llvm-project/issues/103884>`__",""
-"`LWG2859 <https://wg21.link/LWG2859>`__","Definition of *reachable* in [ptr.launder] misses pointer arithmetic from pointer-interconvertible object","2020-02 (Prague)","","","`#100269 <https://github.com/llvm/llvm-project/issues/100269>`__",""
+"`LWG2859 <https://wg21.link/LWG2859>`__","Definition of *reachable* in [ptr.launder] misses pointer arithmetic from pointer-interconvertible object","2020-02 (Prague)","|Nothing To Do|","","`#100269 <https://github.com/llvm/llvm-project/issues/100269>`__",""
 "`LWG3018 <https://wg21.link/LWG3018>`__","``shared_ptr``\  of function type","2020-02 (Prague)","|Nothing To Do|","","`#103885 <https://github.com/llvm/llvm-project/issues/103885>`__",""
 "`LWG3050 <https://wg21.link/LWG3050>`__","Conversion specification problem in ``chrono::duration``\  constructor","2020-02 (Prague)","|Complete|","19","`#103887 <https://github.com/llvm/llvm-project/issues/103887>`__",""
 "`LWG3141 <https://wg21.link/LWG3141>`__","``CopyConstructible``\  doesn't preserve source values","2020-02 (Prague)","|Nothing To Do|","","`#103889 <https://github.com/llvm/llvm-project/issues/103889>`__",""