Bug 272309 – Workaround restrict error with GCC 12

• Component: New Bugs
• Status: RESOLVED FIXED

[Patrick Griffis]

In static member function ‘static constexpr std::char_traits<char>::char_type* std::char_traits<char>::copy(char_type*, const char_type*, std::size_t)’,
    inlined from ‘static constexpr void std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_S_copy(_CharT*, const _CharT*, size_type) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ at /usr/include/c++/12/bits/basic_string.h:431:21,
    inlined from ‘constexpr std::__cxx11::basic_string<_CharT, _Traits, _Allocator>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::_M_replace(size_type, size_type, const _CharT*, size_type) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ at /usr/include/c++/12/bits/basic_string.tcc:532:22,
    inlined from ‘constexpr std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::replace(size_type, size_type, const _CharT*, size_type) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ at /usr/include/c++/12/bits/basic_string.h:2179:19,
    inlined from ‘constexpr std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::insert(size_type, const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ at /usr/include/c++/12/bits/basic_string.h:1936:22,
    inlined from ‘std::ostream& WTF::operator<<(std::ostream&, Int128Impl)’ at /host/home/tingping/Projects/WebKit/Source/WTF/wtf/Int128.cpp:268:17:
/usr/include/c++/12/bits/char_traits.h:435:56: error: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’ accessing 9223372036854775810 or more bytes at offsets [2, 9223372036854775807] and 1 may overlap up to 9223372036854775813 bytes at offset -3 [-Werror=restrict]
  435 |         return static_cast<char_type*>(__builtin_memcpy(__s1, __s2, __n));

[Patrick Griffis]

Pull request: https://github.com/WebKit/WebKit/pull/26961

[EWS]

Committed 277203@main (bd1249cc9c4f): <https://commits.webkit.org/277203@main>

Reviewed commits have been landed. Closing PR #26961 and removing active labels.

[Radar WebKit Bug Importer]

<rdar://problem/126082293>

[Patrick Griffis]

For future readers, the upstream bug is here: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105329