[all-commits] [llvm/llvm-project] a5c06c: [libc++] Implement LWG3662 basic_string::append/as...

[Connector Switch via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a5c06c0b4c7d713ef7ea63cd43554cc674dd167d
      https://github.com/llvm/llvm-project/commit/a5c06c0b4c7d713ef7ea63cd43554cc674dd167d
  Author: Connector Switch <c8ef at outlook.com>
  Date:   2026-07-01 (Wed, 01 Jul 2026)

  Changed paths:
    M libcxx/docs/Status/Cxx26Issues.csv
    M libcxx/include/string
    M libcxx/test/libcxx/strings/basic.string/nonnull.verify.cpp
    A libcxx/test/std/strings/basic.string/string.modifiers/string_append/pointer_size_size.pass.cpp
    A libcxx/test/std/strings/basic.string/string.modifiers/string_assign/pointer_size_size.pass.cpp

  Log Message:
  -----------
  [libc++] Implement LWG3662 basic_string::append/assign(NTBS, pos, n) suboptimal (#206320)

Closes https://github.com/llvm/llvm-project/issues/189809

This patch implements LWG 3662 and adds the related functional and
nonnull tests.

---------

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



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