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azat
added a commit
to azat-ch/replxx
that referenced
this pull request
Sep 4, 2022
You may get uncaugh exception (in case of i.e. broken pipe):
terminating with uncaught exception of type std::runtime_error: write failed
On destroy:
(lldb) target create "clickhouse-22.8-release" --core "core.clickhouse-clie.402986-642410"
bt
Core file '/wrk/core.clickhouse-clie.402986-642410' (x86_64) was loaded.
(lldb) bt
* thread ClickHouse#1, name = 'clickhouse-clie', stop reason = signal SIGABRT
* frame #0: 0x00007f03fb5c900b libc.so.6`raise + 203
frame ClickHouse#1: 0x00007f03fb5a8859 libc.so.6`abort + 299
frame ClickHouse#2: 0x000000001b703f44 clickhouse-22.8-release`::abort_message(format=<unavailable>) at abort_message.cpp:78:5
frame ClickHouse#3: 0x000000001b703dd4 clickhouse-22.8-release`demangling_terminate_handler() at cxa_default_handlers.cpp:67:21
frame ClickHouse#4: 0x000000001b721063 clickhouse-22.8-release`std::__terminate(func=<unavailable>)()) at cxa_handlers.cpp:59:9
frame ClickHouse#5: 0x000000001b720fce clickhouse-22.8-release`std::terminate() at cxa_handlers.cpp:88:17
frame ClickHouse#6: 0x000000000a3b21db clickhouse-22.8-release`__clang_call_terminate + 11
frame ClickHouse#7: 0x00000000189b1bfc clickhouse-22.8-release`replxx::Replxx::ReplxxImpl::~ReplxxImpl(this=0x00007f03fa945308) at replxx_impl.cxx:336:1
frame ClickHouse#8: 0x00000000189b1ce9 clickhouse-22.8-release`replxx::Replxx::ReplxxImpl::~ReplxxImpl(this=0x00007f03fa945300) at replxx_impl.cxx:334:41
frame ClickHouse#9: 0x00000000188b0644 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] std::__1::unique_ptr<replxx::Replxx::ReplxxImpl, void (*)(replxx::Replxx::ReplxxImpl*)>::reset(this=<unavailable>, __p=<unavailable>) at unique_ptr.h:315:7
frame ClickHouse#10: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] std::__1::unique_ptr<replxx::Replxx::ReplxxImpl, void (*)(replxx::Replxx::ReplxxImpl*)>::~unique_ptr(this=<unavailable>) at unique_ptr.h:269
frame ClickHouse#11: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] replxx::Replxx::~Replxx(this=<unavailable>) at replxx.hxx:76
frame ClickHouse#12: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader(this=0x00007ffd10038440) at ReplxxLineReader.cpp:229
frame ClickHouse#13: 0x00000000158b2100 clickhouse-22.8-release`DB::ClientBase::runInteractive(this=0x00007ffd10038620) at ClientBase.cpp:2067:1
frame ClickHouse#14: 0x000000000a4de372 clickhouse-22.8-release`DB::Client::main(this=0x00007ffd10038620, (null)=<unavailable>) at Client.cpp:261:9
frame ClickHouse#15: 0x0000000018923a86 clickhouse-22.8-release`Poco::Util::Application::run(this=0x00007ffd10038620) at Application.cpp:334:8
frame ClickHouse#16: 0x000000000a4ed341 clickhouse-22.8-release`mainEntryClickHouseClient(argc=39, argv=0x00007f03fa8201c0) at Client.cpp:1220:23
frame ClickHouse#17: 0x000000000a3b17ab clickhouse-22.8-release`main(argc_=<unavailable>, argv_=<unavailable>) at main.cpp:449:12
frame ClickHouse#18: 0x00007f03fb5aa083 libc.so.6`__libc_start_main + 243
frame ClickHouse#19: 0x000000000a17032e clickhouse-22.8-release`_start + 46
azat
added a commit
to azat-ch/replxx
that referenced
this pull request
Sep 4, 2022
You may get uncaugh exception (in case of i.e. broken pipe):
terminating with uncaught exception of type std::runtime_error: write failed
On destroy:
(lldb) target create "clickhouse-22.8-release" --core "core.clickhouse-clie.402986-642410"
bt
Core file '/wrk/core.clickhouse-clie.402986-642410' (x86_64) was loaded.
(lldb) bt
* thread ClickHouse#1, name = 'clickhouse-clie', stop reason = signal SIGABRT
* frame #0: 0x00007f03fb5c900b libc.so.6`raise + 203
frame ClickHouse#1: 0x00007f03fb5a8859 libc.so.6`abort + 299
frame ClickHouse#2: 0x000000001b703f44 clickhouse-22.8-release`::abort_message(format=<unavailable>) at abort_message.cpp:78:5
frame ClickHouse#3: 0x000000001b703dd4 clickhouse-22.8-release`demangling_terminate_handler() at cxa_default_handlers.cpp:67:21
frame ClickHouse#4: 0x000000001b721063 clickhouse-22.8-release`std::__terminate(func=<unavailable>)()) at cxa_handlers.cpp:59:9
frame ClickHouse#5: 0x000000001b720fce clickhouse-22.8-release`std::terminate() at cxa_handlers.cpp:88:17
frame ClickHouse#6: 0x000000000a3b21db clickhouse-22.8-release`__clang_call_terminate + 11
frame ClickHouse#7: 0x00000000189b1bfc clickhouse-22.8-release`replxx::Replxx::ReplxxImpl::~ReplxxImpl(this=0x00007f03fa945308) at replxx_impl.cxx:336:1
frame ClickHouse#8: 0x00000000189b1ce9 clickhouse-22.8-release`replxx::Replxx::ReplxxImpl::~ReplxxImpl(this=0x00007f03fa945300) at replxx_impl.cxx:334:41
frame ClickHouse#9: 0x00000000188b0644 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] std::__1::unique_ptr<replxx::Replxx::ReplxxImpl, void (*)(replxx::Replxx::ReplxxImpl*)>::reset(this=<unavailable>, __p=<unavailable>) at unique_ptr.h:315:7
frame ClickHouse#10: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] std::__1::unique_ptr<replxx::Replxx::ReplxxImpl, void (*)(replxx::Replxx::ReplxxImpl*)>::~unique_ptr(this=<unavailable>) at unique_ptr.h:269
frame ClickHouse#11: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] replxx::Replxx::~Replxx(this=<unavailable>) at replxx.hxx:76
frame ClickHouse#12: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader(this=0x00007ffd10038440) at ReplxxLineReader.cpp:229
frame ClickHouse#13: 0x00000000158b2100 clickhouse-22.8-release`DB::ClientBase::runInteractive(this=0x00007ffd10038620) at ClientBase.cpp:2067:1
frame ClickHouse#14: 0x000000000a4de372 clickhouse-22.8-release`DB::Client::main(this=0x00007ffd10038620, (null)=<unavailable>) at Client.cpp:261:9
frame ClickHouse#15: 0x0000000018923a86 clickhouse-22.8-release`Poco::Util::Application::run(this=0x00007ffd10038620) at Application.cpp:334:8
frame ClickHouse#16: 0x000000000a4ed341 clickhouse-22.8-release`mainEntryClickHouseClient(argc=39, argv=0x00007f03fa8201c0) at Client.cpp:1220:23
frame ClickHouse#17: 0x000000000a3b17ab clickhouse-22.8-release`main(argc_=<unavailable>, argv_=<unavailable>) at main.cpp:449:12
frame ClickHouse#18: 0x00007f03fb5aa083 libc.so.6`__libc_start_main + 243
frame ClickHouse#19: 0x000000000a17032e clickhouse-22.8-release`_start + 46
nikitamikhaylov
pushed a commit
that referenced
this pull request
Aug 23, 2024
You may get uncaugh exception (in case of i.e. broken pipe):
terminating with uncaught exception of type std::runtime_error: write failed
On destroy:
(lldb) target create "clickhouse-22.8-release" --core "core.clickhouse-clie.402986-642410"
bt
Core file '/wrk/core.clickhouse-clie.402986-642410' (x86_64) was loaded.
(lldb) bt
* thread #1, name = 'clickhouse-clie', stop reason = signal SIGABRT
* frame #0: 0x00007f03fb5c900b libc.so.6`raise + 203
frame #1: 0x00007f03fb5a8859 libc.so.6`abort + 299
frame #2: 0x000000001b703f44 clickhouse-22.8-release`::abort_message(format=<unavailable>) at abort_message.cpp:78:5
frame #3: 0x000000001b703dd4 clickhouse-22.8-release`demangling_terminate_handler() at cxa_default_handlers.cpp:67:21
frame #4: 0x000000001b721063 clickhouse-22.8-release`std::__terminate(func=<unavailable>)()) at cxa_handlers.cpp:59:9
frame #5: 0x000000001b720fce clickhouse-22.8-release`std::terminate() at cxa_handlers.cpp:88:17
frame #6: 0x000000000a3b21db clickhouse-22.8-release`__clang_call_terminate + 11
frame #7: 0x00000000189b1bfc clickhouse-22.8-release`replxx::Replxx::ReplxxImpl::~ReplxxImpl(this=0x00007f03fa945308) at replxx_impl.cxx:336:1
frame #8: 0x00000000189b1ce9 clickhouse-22.8-release`replxx::Replxx::ReplxxImpl::~ReplxxImpl(this=0x00007f03fa945300) at replxx_impl.cxx:334:41
frame #9: 0x00000000188b0644 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] std::__1::unique_ptr<replxx::Replxx::ReplxxImpl, void (*)(replxx::Replxx::ReplxxImpl*)>::reset(this=<unavailable>, __p=<unavailable>) at unique_ptr.h:315:7
frame #10: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] std::__1::unique_ptr<replxx::Replxx::ReplxxImpl, void (*)(replxx::Replxx::ReplxxImpl*)>::~unique_ptr(this=<unavailable>) at unique_ptr.h:269
frame #11: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader() [inlined] replxx::Replxx::~Replxx(this=<unavailable>) at replxx.hxx:76
frame #12: 0x00000000188b0626 clickhouse-22.8-release`ReplxxLineReader::~ReplxxLineReader(this=0x00007ffd10038440) at ReplxxLineReader.cpp:229
frame #13: 0x00000000158b2100 clickhouse-22.8-release`DB::ClientBase::runInteractive(this=0x00007ffd10038620) at ClientBase.cpp:2067:1
frame #14: 0x000000000a4de372 clickhouse-22.8-release`DB::Client::main(this=0x00007ffd10038620, (null)=<unavailable>) at Client.cpp:261:9
frame #15: 0x0000000018923a86 clickhouse-22.8-release`Poco::Util::Application::run(this=0x00007ffd10038620) at Application.cpp:334:8
frame #16: 0x000000000a4ed341 clickhouse-22.8-release`mainEntryClickHouseClient(argc=39, argv=0x00007f03fa8201c0) at Client.cpp:1220:23
frame #17: 0x000000000a3b17ab clickhouse-22.8-release`main(argc_=<unavailable>, argv_=<unavailable>) at main.cpp:449:12
frame #18: 0x00007f03fb5aa083 libc.so.6`__libc_start_main + 243
frame #19: 0x000000000a17032e clickhouse-22.8-release`_start + 46
azat
added a commit
that referenced
this pull request
May 24, 2025
The problem was that you can remove different entries from _locations
and _entries in case of Entry::_scratch does not match Entry::_text
(i.e. after some modifications of existing entries in history)
And you will get heap-use-after-free in this case:
=================================================================
==21751==ERROR: AddressSanitizer: heap-use-after-free on address 0x508000077be0 at pc 0x5555908ad5e9 bp 0x7fffffffa2c0 sp 0x7fffffffa2b8
READ of size 8 at 0x508000077be0 thread T0
#0 0x5555908ad5e8 in std::__1::vector<>::data[abi:ne190107]() const ci/tmp/build/./contrib/llvm-project/libcxx/include/vector:674:36
#1 0x5555908ad5e8 in replxx::UnicodeString::get() const ci/tmp/build/./contrib/replxx/src/unicodestring.hxx:148:16
#2 0x5555908ad5e8 in std::__1::hash<replxx::UnicodeString>::operator()(replxx::UnicodeString const&) const ci/tmp/build/./contrib/replxx/src/history.hxx:17:26
#3 0x5555908ad5e8 in ci/tmp/build/./contrib/llvm-project/libcxx/include/unordered_map:646:75
#4 0x5555908ad5e8 in ci/tmp/build/./contrib/llvm-project/libcxx/include/__hash_table:1748:20
#5 0x55559089c55b in ci/tmp/build/./contrib/llvm-project/libcxx/include/__hash_table:1851:18
#6 0x55559089c55b in ci/tmp/build/./contrib/llvm-project/libcxx/include/unordered_map:1322:80
#7 0x55559089c55b in replxx::History::erase(std::__1::__list_iterator<replxx::History::Entry, void*>) ci/tmp/build/./contrib/replxx/src/history.cxx:355:13
#8 0x55559089c55b in replxx::History::remove_duplicate(replxx::UnicodeString const&) ci/tmp/build/./contrib/replxx/src/history.cxx:381:2
#9 0x55559089b9ab in replxx::History::add(replxx::UnicodeString const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/history.cxx:94:2
#10 0x5555908e9d70 in replxx::Replxx::ReplxxImpl::history_add(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/replxx_impl.cxx:2467:11
#11 0x555586b4dc4f in DB::ReplxxLineReader::addToHistory(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/ReplxxLineReader.cpp:527:8
#12 0x555586b11f7f in DB::LineReader::readLine(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/LineReader.cpp:217:9
#13 0x555586a4445e in DB::ClientBase::runInteractive() ci/tmp/build/./src/Client/ClientBase.cpp:3335:25
0x508000077be0 is located 64 bytes inside of 88-byte region [0x508000077ba0,0x508000077bf8)
freed by thread T0 here:
#0 0x55556193a622 in operator delete(void*, unsigned long) (/src/ch/tmp/ci/clickhouse+0xc3e6622) (BuildId: 6b920302e2b03137aca21bee17dec6310aedbafa)
#1 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/new:274:3
#2 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/new:298:10
#3 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/new:311:12
#4 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/__memory/allocator.h:132:7
#5 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/__memory/allocator_traits.h:312:9
#6 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/list:574:5
#7 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/list:1341:9
#8 0x55559089c60c in replxx::History::erase(std::__1::__list_iterator<replxx::History::Entry, void*>) ci/tmp/build/./contrib/replxx/src/history.cxx:356:17
#9 0x55559089c60c in replxx::History::remove_duplicate(replxx::UnicodeString const&) ci/tmp/build/./contrib/replxx/src/history.cxx:381:2
#10 0x55559089b9ab in replxx::History::add(replxx::UnicodeString const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/history.cxx:94:2
#11 0x5555908e9d70 in replxx::Replxx::ReplxxImpl::history_add(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/replxx_impl.cxx:2467:11
#12 0x555586b4dc4f in DB::ReplxxLineReader::addToHistory(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/ReplxxLineReader.cpp:527:8
#13 0x555586b11f7f in DB::LineReader::readLine(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/LineReader.cpp:217:9
#14 0x555586a4445e in DB::ClientBase::runInteractive() ci/tmp/build/./src/Client/ClientBase.cpp:3335:25
SUMMARY: AddressSanitizer: heap-use-after-free ci/tmp/build/./contrib/llvm-project/libcxx/include/vector:674:36 in std::__1::vector<char32_t, std::__1::allocator<char32_t>>::data[abi:ne190107]() const
azat
added a commit
to azat-ch/replxx
that referenced
this pull request
May 24, 2025
The problem was that you can remove different entries from _locations
and _entries in case of Entry::_scratch does not match Entry::_text
(i.e. after some modifications of existing entries in history)
And you will get heap-use-after-free in this case:
=================================================================
==21751==ERROR: AddressSanitizer: heap-use-after-free on address 0x508000077be0 at pc 0x5555908ad5e9 bp 0x7fffffffa2c0 sp 0x7fffffffa2b8
READ of size 8 at 0x508000077be0 thread T0
#0 0x5555908ad5e8 in std::__1::vector<>::data[abi:ne190107]() const ci/tmp/build/./contrib/llvm-project/libcxx/include/vector:674:36
ClickHouse#1 0x5555908ad5e8 in replxx::UnicodeString::get() const ci/tmp/build/./contrib/replxx/src/unicodestring.hxx:148:16
ClickHouse#2 0x5555908ad5e8 in std::__1::hash<replxx::UnicodeString>::operator()(replxx::UnicodeString const&) const ci/tmp/build/./contrib/replxx/src/history.hxx:17:26
ClickHouse#3 0x5555908ad5e8 in ci/tmp/build/./contrib/llvm-project/libcxx/include/unordered_map:646:75
ClickHouse#4 0x5555908ad5e8 in ci/tmp/build/./contrib/llvm-project/libcxx/include/__hash_table:1748:20
ClickHouse#5 0x55559089c55b in ci/tmp/build/./contrib/llvm-project/libcxx/include/__hash_table:1851:18
ClickHouse#6 0x55559089c55b in ci/tmp/build/./contrib/llvm-project/libcxx/include/unordered_map:1322:80
ClickHouse#7 0x55559089c55b in replxx::History::erase(std::__1::__list_iterator<replxx::History::Entry, void*>) ci/tmp/build/./contrib/replxx/src/history.cxx:355:13
ClickHouse#8 0x55559089c55b in replxx::History::remove_duplicate(replxx::UnicodeString const&) ci/tmp/build/./contrib/replxx/src/history.cxx:381:2
ClickHouse#9 0x55559089b9ab in replxx::History::add(replxx::UnicodeString const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/history.cxx:94:2
ClickHouse#10 0x5555908e9d70 in replxx::Replxx::ReplxxImpl::history_add(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/replxx_impl.cxx:2467:11
ClickHouse#11 0x555586b4dc4f in DB::ReplxxLineReader::addToHistory(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/ReplxxLineReader.cpp:527:8
ClickHouse#12 0x555586b11f7f in DB::LineReader::readLine(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/LineReader.cpp:217:9
ClickHouse#13 0x555586a4445e in DB::ClientBase::runInteractive() ci/tmp/build/./src/Client/ClientBase.cpp:3335:25
0x508000077be0 is located 64 bytes inside of 88-byte region [0x508000077ba0,0x508000077bf8)
freed by thread T0 here:
#0 0x55556193a622 in operator delete(void*, unsigned long) (/src/ch/tmp/ci/clickhouse+0xc3e6622) (BuildId: 6b920302e2b03137aca21bee17dec6310aedbafa)
ClickHouse#1 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/new:274:3
ClickHouse#2 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/new:298:10
ClickHouse#3 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/new:311:12
ClickHouse#4 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/__memory/allocator.h:132:7
ClickHouse#5 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/__memory/allocator_traits.h:312:9
ClickHouse#6 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/list:574:5
ClickHouse#7 0x55559089c60c in ci/tmp/build/./contrib/llvm-project/libcxx/include/list:1341:9
ClickHouse#8 0x55559089c60c in replxx::History::erase(std::__1::__list_iterator<replxx::History::Entry, void*>) ci/tmp/build/./contrib/replxx/src/history.cxx:356:17
ClickHouse#9 0x55559089c60c in replxx::History::remove_duplicate(replxx::UnicodeString const&) ci/tmp/build/./contrib/replxx/src/history.cxx:381:2
ClickHouse#10 0x55559089b9ab in replxx::History::add(replxx::UnicodeString const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/history.cxx:94:2
ClickHouse#11 0x5555908e9d70 in replxx::Replxx::ReplxxImpl::history_add(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./contrib/replxx/src/replxx_impl.cxx:2467:11
ClickHouse#12 0x555586b4dc4f in DB::ReplxxLineReader::addToHistory(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/ReplxxLineReader.cpp:527:8
ClickHouse#13 0x555586b11f7f in DB::LineReader::readLine(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char>> const&) ci/tmp/build/./src/Client/LineReader.cpp:217:9
ClickHouse#14 0x555586a4445e in DB::ClientBase::runInteractive() ci/tmp/build/./src/Client/ClientBase.cpp:3335:25
SUMMARY: AddressSanitizer: heap-use-after-free ci/tmp/build/./contrib/llvm-project/libcxx/include/vector:674:36 in std::__1::vector<char32_t, std::__1::allocator<char32_t>>::data[abi:ne190107]() const
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#7