[all-commits] [llvm/llvm-project] 09addf: [libc++][format] Fixes UTF-8 continuation.

[Mark de Wever via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 09addf9cbe0a5a8ba9d5666b6e25e6308c441ae2
      https://github.com/llvm/llvm-project/commit/09addf9cbe0a5a8ba9d5666b6e25e6308c441ae2
  Author: Mark de Wever <koraq at xs4all.nl>
  Date:   2023-06-20 (Tue, 20 Jun 2023)

  Changed paths:
    M libcxx/include/__format/unicode.h
    M libcxx/test/std/utilities/format/format.functions/escaped_output.unicode.pass.cpp
    M libcxx/test/std/utilities/format/format.functions/unicode.pass.cpp

  Log Message:
  -----------
  [libc++][format] Fixes UTF-8 continuation.

The mask used to check whether a code unit is a valid continuation was
incorrect and accepts non-continuation code points. This fixes the
issue.

Reviewed By: ldionne, tahonermann, #libc

Differential Revision: https://reviews.llvm.org/D149672