Re: [release] Boost 1.80.0 Beta 1 Release Candidate 1 is available

From: Christian Mazakas (christian.mazakas_at_[hidden])
Date: 2022-07-12 16:05:36

Seems the build is a little noisy with warnings, using gcc-12

> 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_ptr<boost::filesystem::detail::dir_itr_imp>&,
const boost::filesystem::path&, unsigned int, boost::files
> ystem::path&, boost::filesystem::file_status&,
boost::filesystem::file_status&)’ at
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<char_type*>(__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