It looks like your implementation of hash_map is not working correctly --
all lookups are failing. You might try writing a little test for hash_map
itself that would be easier to debug.
On Tue, Jul 14, 2009 at 6:27 PM, vikram <patilvik...@gmail.com> wrote:
>
> Kenton & Monty,
>
> I added hack as followes in the hash.h
>
> // File changed .....
>
> #if defined(HAVE_HASH_MAP) && defined(HAVE_HASH_SET)
> #include HASH_MAP_H
> #include HASH_SET_H
> #elif defined (__xlC__)
> #define MISSING_HASH
> #include <unordered_map>
> #include <unordered_set>
> #else
> #define MISSING_HASH
> #include <map>
> #include <set>
> #endif
>
> namespace google {
> namespace protobuf {
> #if defined(MISSING_HASH) && defined(__xlC__)
>
> //@TODO
> //Inherit hash_map from unordered_map
> template <typename Key>
> struct hash : public std::tr1::hash<Key> {
> };
>
> template <typename Key>
> struct hash<const Key*> {
> inline size_t operator()(const Key* key) const {
> return reinterpret_cast<size_t>(key);
> }
> };
>
> template <typename Key, typename Data,
> typename HashFcn = hash<Key>,
> typename EqualKey = std::equal_to<Key> >
> class hash_map : public std::tr1::unordered_map<Key, Data, HashFcn ,
> EqualKey> {
>
> };
>
> template <typename Key,
> typename HashFcn = hash<Key>,
> typename EqualKey = std::equal_to<Key> >
> class hash_set : public std::tr1::unordered_set<
> Key, HashFcn, EqualKey> {
> };
> #elif defined(MISSING_HASH)
>
> File continues as it is
>
> Stack trace
>
> pthread_kill(??, ??) at 0xd01246b4
> _p_raise(??) at 0xd0124124
> raise.raise(??) at 0xd0375b28
> abort() at 0xd03d3e78
> google::protobuf::internal::LogMessage::Finish()(this = 0x2ff21e40),
> line 171 in "common.cc"
> google::protobuf::internal::LogFinisher::operator=
> (google::protobuf::internal::LogMessage&)(this = 0x2ff21e38, other = &
> (...)), line 176 in "common.cc"
> protobuf_AssignDesc_google_2fprotobuf_2fdescriptor_2eproto()(), line
> 82 in "descriptor.pb.cc"
> pthread_once(??, ??) at 0xd0115e78
> common.GoogleOnceInit(pthread_once_t*,void(*)())(0xf04a9d00,
> 0xf04b15a0), line 114 in "once.h"
> protobuf_AssignDescriptorsOnce()(), line 408 in "descriptor.pb.cc"
> google::protobuf::FileOptions::descriptor()(), line 3862 in
> "descriptor.pb.cc"
> google::protobuf::FileOptions::GetDescriptor() const(this =
> 0x2000e248), line 4190 in "descriptor.pb.cc"
> google::protobuf::compiler::Parser::ParseOptionAssignment
> (google::protobuf::Message*)(this = 0x2ff223b8, options = 0x2000e248),
> line 659 in "parser.cc"
> google::protobuf::compiler::Parser::ParseOption
> (google::protobuf::Message*)(this = 0x2ff223b8, options = 0x2000e248),
> line 1081 in "parser.cc"
> google::protobuf::compiler::Parser::ParseTopLevelStatement
> (google::protobuf::FileDescriptorProto*)(this = 0x2ff223b8, file =
> 0x2ff22460), line 375 in "parser.cc"
> google::protobuf::compiler::Parser::Parse
> (google::protobuf::io::Tokenizer*,google::protobuf::FileDescriptorProto*)
> (this = 0x2ff223b8, input = 0x2ff22368, file = 0x2ff22460), line 321
> in "parser.cc"
> google::protobuf::compiler::SourceTreeDescriptorDatabase::FindFileByName
> (const
> std::basic_string<char,std::char_traits<char>,std::allocator<char>
> >&,google::protobuf::FileDescriptorProto*)(this = 0x2ff22688, filename
> = &(...), output = 0x2ff22460), line 145 in "importer.cc"
> TryFindFileInFallbackDatabase(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)
> const(0x2ff226ac, 0x2000b9d8), line 1230 in "descriptor.cc"
> NFS write error on host esfs3-lnx.actuate.com: 28.
> File: userid=1104, groupid=1000
> FindFileByName(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)
> const(0x2ff226ac, 0x2000b9d8), line 875 in "descriptor.cc"
> google::protobuf::compiler::Importer::Import(const
> std::basic_string<char,std::char_traits<char>,std::allocator<char> >&)
> (this = 0x2ff22688, filename = &(...)), line 194 in "importer.cc"
>
> Protoc compiler aborted
>
> ./protoc google/protobuf/unittest.proto google/protobuf/
> unittest_empty.proto google/protobuf/unittest_import.proto google/
> protobuf/unittest_mset.proto google/protobuf/
> unittest_optimize_for.proto google/protobuf/
> unittest_embed_optimize_for.proto google/protobuf/
> unittest_custom_options.proto google/protobuf/compiler/cpp/
> cpp_test_bad_identifiers.proto -I. --cpp_out=.
> libprotobuf ERROR google/protobuf/descriptor.cc:2215] Invalid proto
> descriptor for file "google/protobuf/descriptor.proto":
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FileDescriptorSet.file:
> ".google.protobuf.FileDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FileDescriptorProto.message_type:
> ".google.protobuf.DescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FileDescriptorProto.extension:
> ".google.protobuf.FieldDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FileDescriptorProto.options:
> ".google.protobuf.FileOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.DescriptorProto.field:
> ".google.protobuf.FieldDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.DescriptorProto.extension:
> ".google.protobuf.FieldDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.DescriptorProto.nested_type:
> ".google.protobuf.DescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.DescriptorProto.enum_type:
> ".google.protobuf.EnumDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.DescriptorProto.extension_range:
> ".google.protobuf.DescriptorProto.ExtensionRange" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.DescriptorProto.options:
> ".google.protobuf.MessageOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FieldDescriptorProto.label:
> ".google.protobuf.FieldDescriptorProto.Label" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FieldDescriptorProto.type:
> ".google.protobuf.FieldDescriptorProto.Type" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FieldDescriptorProto.options:
> ".google.protobuf.FieldOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.EnumDescriptorProto.value:
> ".google.protobuf.EnumValueDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.EnumDescriptorProto.options:
> ".google.protobuf.EnumOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.EnumValueDescriptorProto.options:
> ".google.protobuf.EnumValueOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.ServiceDescriptorProto.method:
> ".google.protobuf.MethodDescriptorProto" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.ServiceDescriptorProto.options:
> ".google.protobuf.ServiceOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.MethodDescriptorProto.options:
> ".google.protobuf.MethodOptions" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FileOptions.optimize_for:
> ".google.protobuf.FileOptions.OptimizeMode" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FileOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.MessageOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FieldOptions.ctype:
> ".google.protobuf.FieldOptions.CType" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.FieldOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.EnumOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.EnumValueOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.ServiceOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.MethodOptions.uninterpreted_option:
> ".google.protobuf.UninterpretedOption" is not defined.
> libprotobuf ERROR google/protobuf/descriptor.cc:2218]
> google.protobuf.UninterpretedOption.name:
> ".google.protobuf.UninterpretedOption.NamePart" is not defined.
> libprotobuf FATAL google/protobuf/descriptor.pb.cc:82] CHECK failed:
> file != NULL:
> gmake[2]: *** [unittest_proto_middleman] IOT/Abort trap (core dumped)
>
> Any suggestions?
>
> Thanks & Regards,
> Vikram
>
> On Jul 13, 5:23 pm, Kenton Varda <ken...@google.com> wrote:
> > And yes, I'd love a patch. :)
> >
> > On Mon, Jul 13, 2009 at 5:22 PM, Kenton Varda <ken...@google.com> wrote:
> > > google/protobuf/stubs/hash.h already contains some hacks for hash_map.
> To
> > > support unordered_map, all we'd have to do is add another hack there
> which
> > > defines hash_map to be a subclass of unordered_map. Subclassing
> effectively
> > > functions as a template typedef here.
> > > I would rather not replace the identifier "hash_map" with
> "unordered_map"
> > > in the actual code until the Google style guide rules on the issue. I
> > > suspect that Google code will go on using hash_map with a similar hack
> > > because updating our entire code base is just not worth the effort.
> >
> > > On Mon, Jul 13, 2009 at 5:13 PM, Monty Taylor <mord...@inaugust.com
> >wrote:
> >
> > >> vikram wrote:
> > >> > I have found out that with new xlC versions like 8.X onwards
> hash_map
> > >> > like functionality is supported but different name as unordered_map.
> > >> > So it there any way you can to use this container without modifying
> > >> > much of the code. In the code hash_map is used in many places. So
> it
> > >> > needs to be replaced with unordered_map with
> > >> > xlC compiler on AIX. Please provide some idea. I was trying to do
> > >> > template typedef but seems like I can not have all typenames while
> > >> > doing that.
> >
> > >> I was actually just working on making an update to the m4 to detect
> > >> unordered_map in Drizzle. (We swiped the hash_map detection macro)
> >
> > >> unordered_map is the name it's apparently going to land in C++0x as,
> and
> > >> is the name that it exists as in gcc 4.3 and 4.4. gcc still has
> hash_map
> > >> as well, but it throws a deprecated warning.
> >
> > >> Might not be a terrible idea to go ahead and shift to unordered_map
> and
> > >> then put in a mapping/typedef for hash_map if something doesn't have
> u_m?
> >
> > >> (Kenton - would you be interested in a patch doing that?)
> >
> > >> > On Jul 1, 12:00 pm, Kenton Varda <ken...@google.com> wrote:
> > >> >> Well, it looks like all of these are stuck in the same place -- in
> the
> > >> same
> > >> >> call to hash_map::find(). This would seem to indicate that your
> STL
> > >> >> implementation is broken. It's also possible that the infinite
> loop is
> > >> >> actually in protobuf code, and the only reason we see it always
> > >> breaking in
> > >> >> the same find() call is because that's the most expensive part of
> the
> > >> loop.
> > >> >> You could test this by breaking under gdb again, and then
> repeatedly
> > >> typing
> > >> >> "finish" to make it run to completion of the current function call.
> If
> > >> it
> > >> >> eventually gets back to protobuf code, then the problem is there,
> > >> otherwise
> > >> >> it's in the STL code. (Actually, I should have told you to do this
> > >> >> originally, rather than the "collect multiple stack traces"
> idea...)
> >
> > >> >> On Tue, Jun 30, 2009 at 7:36 PM, vikram <patilvik...@gmail.com>
> wrote:
> >
> > >> >>> Hey Kenton,
> > >> >>> This is compilation without STL implementation . I am
> assuming
> > >> >>> that if hash_map does not exist , google protocol buffer emulates
> > >> >>> hash_map. I am pasting 3-4 instances of stack where protoc is in
> > >> >>> infinite loop
> > >> >>> #0 0xd1cfdc60 in
> >
> > >>
> _Node::_Right__Q2_3std5_TreeXTQ2_3std12_Tmap_traitsXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_TypeTQ3_6google8protobuf4hashXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc___TQ2_3std9allocatorXTQ2_3std4pairXTCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_Type__SP0__FPQ3_3std9_Tree_nodXTQ2_3std12_Tmap_traitsXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_TypeTQ3_6google8protobuf4hashXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc___TQ2_3std9allocatorXTQ2_3std4pairXTCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_Type__SP0
> > >> >>> (_P=0xf04ca4e0) at /usr/vacpp/include/xtree:154
> > >> >>> #1 0xd1d1bbdc in
> >
> > >>
> _Lbound__Q2_3std5_TreeXTQ2_3std12_Tmap_traitsXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_TypeTQ3_6google8protobuf4hashXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc___TQ2_3std9allocatorXTQ2_3std4pairXTCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_Type__SP0__CFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0xf04ca4e0, _...@0x2ff2222c) at
> /usr/vacpp/include/xtree.t:377
> > >> >>> #2 0xd1d22878 in
> >
> > >>
> lower_bound__Q2_3std5_TreeXTQ2_3std12_Tmap_traitsXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_TypeTQ3_6google8protobuf4hashXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc___TQ2_3std9allocatorXTQ2_3std4pairXTCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_Type__SP0__CFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0xf04ca4e0, __classretu...@0x2ff21d70, _...@0x2ff2222c) at
> /usr/
> > >> >>> vacpp/include/xtree:377
> > >> >>> #3 0xd1d28f34 in
> >
> > >>
> find__Q2_3std5_TreeXTQ2_3std12_Tmap_traitsXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_TypeTQ3_6google8protobuf4hashXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc___TQ2_3std9allocatorXTQ2_3std4pairXTCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__TQ3_6google8protobuf25FieldDescriptorProto_Type__SP0__CFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0xf04ca4e0, __classretu...@0x2ff21dd0, _...@0x2ff2222c) at
> /usr/
> > >> >>> vacpp/include/xtree:365
> > >> >>> #4 0xd1d2fd34 in
> >
> > >>
> ParseType__Q4_6google8protobuf8compiler6ParserFPQ3_6google8protobuf25FieldDescriptorProto_TypePQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0x2ff22278,
> > >> >>> type=0x2ff21e24, type_name=0x2ff21e28) at
> google/protobuf/compiler/
> > >> >>> parser.cc:1000
> > >> >>> #5 0xd1d31438 in
> >
> > >>
> ParseMessageField__Q4_6google8protobuf8compiler6ParserFPQ3_6google8protobuf20FieldDescriptorProtoPQ3_6google8protobuf16RepeatedPtrFieldXTQ3_6google8protobuf15DescriptorProto_
> > >> >>> (
> > >> >>> this=0x2ff22278, field=0x2000f918, messages=0x2000f808) at
> google/
> > >> >>> protobuf/compiler/parser.cc:443
> > >> >>> #6 0xd1d30f50 in
> > >> >>> google::protobuf::compiler::Parser::ParseMessageStatement
> > >> >>> (this=0x2ff22278, message=0x2000f7a8) at google/protobuf/compiler/
> > >> >>> parser.cc:428
> > >> >>> #7 0xd1d310c4 in
> > >> >>> google::protobuf::compiler::Parser::ParseMessageBlock
> > >> >>> (this=0x2ff22278, message=0x2000f7a8) at google/protobuf/compiler/
> > >> >>> parser.cc:402
> > >> >>> #8 0xd1d30c80 in
> > >> >>> google::protobuf::compiler::Parser::ParseMessageDefinition
> > >> >>> (this=0x2ff22278, message=0x2000f7a8) at google/protobuf/compiler/
> > >> >>> parser.cc:389
> > >> >>> #9 0xd1d30e28 in
> > >> >>> google::protobuf::compiler::Parser::ParseMessageStatement
> > >> >>> (this=0x2ff22278, message=0x2000f668) at google/protobuf/compiler/
> > >> >>> parser.cc:417
> > >> >>> #10 0xd1d310c4 in
> > >> >>> google::protobuf::compiler::Parser::ParseMessageBlock
> > >> >>> (this=0x2ff22278, message=0x2000f668) at google/protobuf/compiler/
> > >> >>> parser.cc:402
> > >> >>> #11 0xd1d30c80 in
> > >> >>> google::protobuf::compiler::Parser::ParseMessageDefinition
> > >> >>> (this=0x2ff22278, message=0x2000f668) at google/protobuf/compiler/
> > >> >>> parser.cc:389
> > >> >>> #12 0xd1d3250c in
> > >> >>> google::protobuf::compiler::Parser::ParseTopLevelStatement
> > >> >>> (this=0x2ff22278, file=0x2ff22320) at google/protobuf/compiler/
> > >> >>> parser.cc:362
> > >> >>> #13 0xd1d32c80 in google::protobuf::compiler::Parser::Parse
> > >> >>> (this=0x2ff22278, input=0x2ff22228, file=0x2ff22320) at google/
> > >> >>> protobuf/compiler/parser.cc:321
> > >> >>> #14 0xd1d4965c in
> >
> > >>
> FindFileByName__Q4_6google8protobuf8compiler28SourceTreeDescriptorDatabaseFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc
> > >> >>> (this=0x2ff22548, filena...@0x2000bce8,
> > >> >>> output=0x2ff22320) at google/protobuf/compiler/importer.cc:145
> > >> >>> #15 0xd1b4a4f0 in
> >
> > >>
> TryFindFileInFallbackDatabase__Q3_6google8protobuf14DescriptorPoolCFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0x2ff2256c, na...@0x2000bce8)
> > >> >>> at google/protobuf/descriptor.cc:1230
> > >> >>> #16 0xd1b4a844 in
> >
> > >>
> FindFileByName__Q3_6google8protobuf14DescriptorPoolCFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0x2ff2256c, na...@0x2000bce8)
> > >> >>> at google/protobuf/descriptor.cc:875
> > >> >>> #17 0xd1d47ad4 in
> >
> > >>
> Import__Q4_6google8protobuf8compiler8ImporterFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0x2ff22548, filena...@0x2000bce8)
> > >> >>> at google/protobuf/compiler/importer.cc:194
> > >> >>> #18 0xd1757ea0 in
> > >> >>> google::protobuf::compiler::CommandLineInterface::Run
> > >> >>> (this=0x2ff22750, argc=3, argv=0x2ff228f0) at
> > >> google/protobuf/compiler/
> > >> >>> command_line_interface.cc:352
> > >> >>> #19 0x10002894 in main (argc=3, argv=0x2ff228f0) at
> google/protobuf/
> > >> >>> compiler/main.cc:59
> > >> >>> #20 0x100001ec in __start ()
> > >> >>> #0 0xd1afa384 in
> >
> > >>
> __cl__Q3_6google8protobuf4hashXTQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc___CFRCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__RCQ2_3std12basic_stringXTcTQ2_3std11char_traitsXTc_TQ2_3std9allocatorXTc__
> > >> >>> (this=0xf04ca4e0, a...@0xc, b...@0x2ff2222c) at
> >
> > ...
> >
> > read more ยป
> >
>
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