Dimitry Andric 43d0c7131e textproc/zxing-cpp: fix build with libc++ 19 ... As noted in the libc++ 19 release notes [1], std::char_traits<> is now only provided for char, char8_t, char16_t, char32_t and wchar_t, and any instantiation for other types will fail. This causes textproc/zxing-cpp to fail to compile with clang 19 and libc++ 19, resulting in errors similar to: /usr/include/c++/v1/string_view:300:42: error: implicit instantiation of undefined template 'std::char_traits<unsigned char>' 300 | static_assert(is_same<_CharT, typename traits_type::char_type>::value, | ^ /wrkdirs/usr/ports/textproc/zxing-cpp/work/zxing-cpp-2.2.1/core/src/Utf.cpp:72:42: note: in instantiation of template class 'std::basic_string_view<unsigned char>' requested here 72 | static size_t Utf8CountCodePoints(utf8_t utf8) | ^ /usr/include/c++/v1/__string/char_traits.h:45:8: note: template is declared here 45 | struct char_traits; | ^ `utf8_t` is effectively defined as `std::basic_string<uint8_t>`, which is no longer possible. So redefine it as a `std::vector<uint8_t>` instead. This requires only a small adjustment in one other place: replacing the initializer list in the `AppendFromUtf8` call in `FromUtf8`. [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals PR: 280791 Approved by: tcberner (maintainer) MFH: 2024Q3		2024-08-16 17:35:26 +02:00
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