In file included from /usr/include/c++/12/string:40, from ./boost/assert/source_location.hpp:15, from ./boost/exception/exception.hpp:9, from ./boost/throw_exception.hpp:21, from libs/filesystem/src/directory.cpp:16: 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:423:21, 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; _T raits = 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>::assign(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ at /usr/include/c++/12/bits/basic_string.h:1647:19, inlined from ‘constexpr std::__cxx11::basic_string<_CharT, _Traits, _Alloc>& std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::operator=(const _CharT*) [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>]’ at /usr/include/c++/12/bits/basic_string.h:815:28, inlined from ‘boost::filesystem::path& boost::filesystem::path::assign(const value_type*)’ at ./boost/filesystem/path.hpp:349:22, inlined from ‘boost::system::error_code boost::filesystem::detail::{anonymous}::dir_itr_create(boost::intrusive_ptrboost::filesystem::detail::dir_itr_imp&, const boost::filesystem::path&, unsigned int, boost::files ystem::path&, boost::filesystem::file_status&, boost::filesystem::file_status&)’ at

Seems the build is a little noisy with warnings, using gcc-12 libs/filesystem/src/directory.cpp:446:26,

inlined from ‘void

boost::filesystem::detail::directory_iterator_construct(boost::filesystem::directory_iterator&, const boost::filesystem::path&, unsigned int, boost::system::error_code*)’ at libs/filesystem/src/dir

ectory.cpp:1066:51: /usr/include/c++/12/bits/char_traits.h:431:56: warning: ‘void* __builtin_memcpy(void*, const void*, long unsigned int)’ accessing 9223372036854775810 or more bytes at offsets -4611686018427387902 and [-461168601842738790 3, 4611686018427387904] may overlap up to 9223372036854775813 bytes at offset -3 [-Wrestrict] 431 | return static_cast(__builtin_memcpy(__s1, __s2, __n));

Locale seems to also generate similar warnings. I'm not sure if this usage of memcpy is dubious or not. - Christian

This is a bogus warning, please report it to gcc team.

It seems like someone has beaten me to it! It looks like there's multiple ways of triggering this. This bug sounds exactly like what we're seeing so at least the gcc team is aware of the issue. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105651 I suppose these warnings are not actionable on our end then. - Christian