[all-commits] [llvm/llvm-project] 5f2b9d: Re-land "[-Wunterminated-string-initialization] Ha...

[Ziqing Luo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5f2b9dd90dccf0ede5c0b10f2879a4f5429b1fa1
      https://github.com/llvm/llvm-project/commit/5f2b9dd90dccf0ede5c0b10f2879a4f5429b1fa1
  Author: Ziqing Luo <ziqing at udel.edu>
  Date:   2025-06-27 (Fri, 27 Jun 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Sema/SemaInit.cpp
    A clang/test/Sema/attr-nonstring_safe.c

  Log Message:
  -----------
  Re-land "[-Wunterminated-string-initialization] Handle C string literals ending with explicit '\0' (#143487)"

In C, a char array needs no "nonstring" attribute, if its initializer is
a string literal that 1) explicitly ends with '\0' and 2) fits in the
array after a possible truncation.

For example
`char a[4] = "ABC\0"; // fine, needs no "nonstring" attr`

rdar://152506883

This reland disables the test for linux so that it will not block the
buildbot: https://lab.llvm.org/buildbot/#/builders/144/builds/28591.



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