[all-commits] [llvm/llvm-project] 9903c1: [-Wunterminated-string-initialization] Handle C st...

Ziqing Luo via All-commits all-commits at lists.llvm.org
Thu Jun 26 01:39:32 PDT 2025


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9903c1936a5d174cfc7d38f77f40ed460e344db6
      https://github.com/llvm/llvm-project/commit/9903c1936a5d174cfc7d38f77f40ed460e344db6
  Author: Ziqing Luo <ziqing at udel.edu>
  Date:   2025-06-26 (Thu, 26 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:
  -----------
  [-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



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