At the moment the CMake package config is useless below CMake version 3.0 and should be disabled. Additionally exported targets should be prefixed by a namespace msgpack::.

The new spec introduces some new types for str/bin. Support for these types can be improved.

• There should be some way from the C API to deliberately emit a str vs a bin type. Currently the only pack function in userspace is msg_pack_raw, which as best as I can tell always emits str.
• There should be some way to detect whether a msgpack_object was decoded from a str or a bin type. Currently both str and bin formats get decoded to an object with object.type==MSGPACK_OBJECT_RAW.

The first problem is simple enough. As to the second problem, the decode logic seems be buried in macro hell, and I'm not really confident enough that I understand the existing flow to make an attempt.

This bug is important enough that in the absence of a simple solution I will end up writing a new library in the target language.

• Enhance CMakeLists.txt files.
• Move to Boost Test from Google Test to support pre-C++11 compilers.
• Add more configurations on CI matrix builds.
• Add support for the following types:
  • std::array<std::byte>
  • std::span<char>
  • std::span<unsigned char>
  • std::span<std::byte>

I plan to submit one more PR to add full support for std::span - a nice non-owning data range wrapper from C++20.

Hi, msgpackers:

I'm trying "zmq + msgpack-c" to make some prototype on our embedded systems. In principal, we have one device based on PowerPC, and another on ARM (armvt5). It works fine on PowerPC. However, if I send a message between two processes on ARM or send a message from PowerPC to ARM, I will see the "alignment trap" prints, like below.

Alignment trap: process (601) PC=0x000155d4 Instr=0xe1cc20d8 Address=0xb510450c FSR 0x001

Then, I want to know exactly where causes the problem, so I change the ARM build from release mode (-O2) to debug mode (no optimizations at all, so nothing). Surprisingly, the "alignment trap" prints do not show up.

I'm a bit stuck now and do not know which way to go. Any suggestions? Thanks!

Here is a small sample program that shows how include ordering can result in a significant amount of compiler errors. Forcing a strict ordering on includes seems to be a very poor approach:

#include <msgpack_fwd.hpp>

enum class color : int 
{
    red,
    green,
    blue
};

#include <msgpack/object.hpp>
MSGPACK_ADD_ENUM(color);
//#include <msgpack/object.hpp>

#include <msgpack.hpp>

int main(int argc, char** argv)
{
    msgpack::object o(color::red);
    return 0;
}

If you compile this program you will get the following output. Swapping out the msgpack/object.hpp includes will get rid of the errors.

[email protected]:build$ g++ -I ../third-party/msgpack-c/include -std=c++11 ../main.cpp -o main
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp: In instantiation of ‘msgpack::v1::object::object(const T&) [with T = color]’:
../main.cpp:18:33:   required from here
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: error: no matching function for call to ‘operator<<(msgpack::v1::object&, const color&)’
     msgpack::operator<<(*this, v);
                                 ^
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note: candidates are:
../third-party/msgpack-c/include/msgpack/object.hpp:276:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const T&)
 inline void operator<< (msgpack::object::with_zone& o, const T& v)
             ^
../third-party/msgpack-c/include/msgpack/object.hpp:276:13: note:   template argument deduction/substitution failed:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
../third-party/msgpack-c/include/msgpack/object.hpp:199:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const msgpack::v1::object&)
 inline void operator<< (msgpack::object::with_zone& o, const msgpack::object& v)
             ^
../third-party/msgpack-c/include/msgpack/object.hpp:199:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/object.hpp:269:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const msgpack::v1::object::with_zone&)
 inline void operator<< (msgpack::object::with_zone& o, const msgpack::object::with_zone& v)
             ^
../third-party/msgpack-c/include/msgpack/object.hpp:269:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/object.hpp:564:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const msgpack::v1::object&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const msgpack::object& v)
                                 ^
../third-party/msgpack-c/include/msgpack/object.hpp:564:33: note:   template argument deduction/substitution failed:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
../third-party/msgpack-c/include/msgpack/object.hpp:631:26: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const msgpack::v1::object::with_zone&)
 msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const msgpack::object::with_zone& v)
                          ^
../third-party/msgpack-c/include/msgpack/object.hpp:631:26: note:   template argument deduction/substitution failed:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/object.hpp:23:0,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/pack.hpp:144:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const T&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const T& v)
                                 ^
../third-party/msgpack-c/include/msgpack/pack.hpp:144:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:141:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, char)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, char v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:141:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:146:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, signed char)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, signed char v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:146:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:150:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, short int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, signed short v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:150:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:154:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, signed int v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:154:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:158:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, long int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, signed long v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:158:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:162:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, long long int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, signed long long v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:162:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:167:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, unsigned char)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, unsigned char v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:167:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:171:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, short unsigned int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, unsigned short v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:171:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:175:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, unsigned int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, unsigned int v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:175:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:179:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, long unsigned int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, unsigned long v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:179:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:183:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, long long unsigned int)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, unsigned long long v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:183:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:23:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:5,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:187:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, char)
 inline void operator<< (msgpack::object& o, char v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:187:13: note:   no known conversion for argument 2 from ‘const color’ to ‘char’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:191:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, signed char)
 inline void operator<< (msgpack::object& o, signed char v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:191:13: note:   no known conversion for argument 2 from ‘const color’ to ‘signed char’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:203:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, short int)
 inline void operator<< (msgpack::object& o, signed short v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:203:13: note:   no known conversion for argument 2 from ‘const color’ to ‘short int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:215:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, int)
 inline void operator<< (msgpack::object& o, signed int v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:215:13: note:   no known conversion for argument 2 from ‘const color’ to ‘int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:227:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, long int)
 inline void operator<< (msgpack::object& o, signed long v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:227:13: note:   no known conversion for argument 2 from ‘const color’ to ‘long int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:239:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, long long int)
 inline void operator<< (msgpack::object& o, signed long long v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:239:13: note:   no known conversion for argument 2 from ‘const color’ to ‘long long int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:251:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, unsigned char)
 inline void operator<< (msgpack::object& o, unsigned char v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:251:13: note:   no known conversion for argument 2 from ‘const color’ to ‘unsigned char’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:254:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, short unsigned int)
 inline void operator<< (msgpack::object& o, unsigned short v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:254:13: note:   no known conversion for argument 2 from ‘const color’ to ‘short unsigned int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:257:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, unsigned int)
 inline void operator<< (msgpack::object& o, unsigned int v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:257:13: note:   no known conversion for argument 2 from ‘const color’ to ‘unsigned int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:260:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, long unsigned int)
 inline void operator<< (msgpack::object& o, unsigned long v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:260:13: note:   no known conversion for argument 2 from ‘const color’ to ‘long unsigned int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:263:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, long long unsigned int)
 inline void operator<< (msgpack::object& o, unsigned long long v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:263:13: note:   no known conversion for argument 2 from ‘const color’ to ‘long long unsigned int’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:268:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, char)
 inline void operator<< (msgpack::object::with_zone& o, char v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:268:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:272:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, signed char)
 inline void operator<< (msgpack::object::with_zone& o, signed char v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:272:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:275:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, short int)
 inline void operator<< (msgpack::object::with_zone& o, signed short v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:275:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:278:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, int)
 inline void operator<< (msgpack::object::with_zone& o, signed int v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:278:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:281:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, long int)
 inline void operator<< (msgpack::object::with_zone& o, signed long v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:281:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:284:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const long long int&)
 inline void operator<< (msgpack::object::with_zone& o, const signed long long& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:284:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:288:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, unsigned char)
 inline void operator<< (msgpack::object::with_zone& o, unsigned char v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:288:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:291:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, short unsigned int)
 inline void operator<< (msgpack::object::with_zone& o, unsigned short v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:291:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:294:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, unsigned int)
 inline void operator<< (msgpack::object::with_zone& o, unsigned int v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:294:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:297:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, long unsigned int)
 inline void operator<< (msgpack::object::with_zone& o, unsigned long v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:297:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:300:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const long long unsigned int&)
 inline void operator<< (msgpack::object::with_zone& o, const unsigned long long& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/int.hpp:300:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:2:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/bool.hpp:37:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const bool&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const bool& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/bool.hpp:37:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:2:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/bool.hpp:44:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, bool)
 inline void operator<< (msgpack::object& o, bool v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/bool.hpp:44:13: note:   no known conversion for argument 2 from ‘const color’ to ‘bool’
../third-party/msgpack-c/include/msgpack/adaptor/bool.hpp:50:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, bool)
 inline void operator<< (msgpack::object::with_zone& o, bool v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/bool.hpp:50:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:3:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:32:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const char*)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const char* v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:32:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:3:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:40:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const char*)
 inline void operator<< (msgpack::object::with_zone& o, const char* v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:40:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:50:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, const char*)
 inline void operator<< (msgpack::object& o, const char* v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:50:13: note:   no known conversion for argument 2 from ‘const color’ to ‘const char*’
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:59:24: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, char*)
 inline packer<Stream>& operator<< (packer<Stream>& o, char* v)
                        ^
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:59:24: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:3:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:64:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, char*)
 inline void operator<< (object::with_zone& o, char* v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:64:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:69:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, char*)
 inline void operator<< (object& o, char* v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/char_ptr.hpp:69:13: note:   no known conversion for argument 2 from ‘const color’ to ‘char*’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:4:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/deque.hpp:46:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::deque<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::deque<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/deque.hpp:46:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:4:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/deque.hpp:58:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::deque<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::deque<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/deque.hpp:58:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:87:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_int8&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_int8& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:87:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:91:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_int16&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_int16& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:91:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:95:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_int32&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_int32& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:95:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:99:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_int64&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_int64& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:99:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:104:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_uint8&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_uint8& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:104:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:108:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_uint16&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_uint16& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:108:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:112:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_uint32&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_uint32& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:112:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:116:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const fix_uint64&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::fix_uint64& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:116:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:5:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:120:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_int8)
 inline void operator<< (msgpack::object& o, type::fix_int8 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:120:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_int8 {aka msgpack::v1::type::fix_int<signed char>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:132:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_int16)
 inline void operator<< (msgpack::object& o, type::fix_int16 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:132:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_int16 {aka msgpack::v1::type::fix_int<short int>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:144:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_int32)
 inline void operator<< (msgpack::object& o, type::fix_int32 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:144:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_int32 {aka msgpack::v1::type::fix_int<int>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:156:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_int64)
 inline void operator<< (msgpack::object& o, type::fix_int64 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:156:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_int64 {aka msgpack::v1::type::fix_int<long int>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:169:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_uint8)
 inline void operator<< (msgpack::object& o, type::fix_uint8 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:169:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_uint8 {aka msgpack::v1::type::fix_int<unsigned char>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:172:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_uint16)
 inline void operator<< (msgpack::object& o, type::fix_uint16 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:172:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_uint16 {aka msgpack::v1::type::fix_int<short unsigned int>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:175:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_uint32)
 inline void operator<< (msgpack::object& o, type::fix_uint32 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:175:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_uint32 {aka msgpack::v1::type::fix_int<unsigned int>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:178:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::fix_uint64)
 inline void operator<< (msgpack::object& o, type::fix_uint64 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:178:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::fix_uint64 {aka msgpack::v1::type::fix_int<long unsigned int>}’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:182:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_int8)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_int8 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:182:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:185:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_int16)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_int16 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:185:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:188:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_int32)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_int32 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:188:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:191:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_int64)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_int64 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:191:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:195:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_uint8)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_uint8 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:195:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:198:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_uint16)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_uint16 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:198:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:201:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_uint32)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_uint32 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:201:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:204:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::fix_uint64)
 inline void operator<< (msgpack::object::with_zone& o, type::fix_uint64 v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/fixint.hpp:204:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:6:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:50:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const float&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const float& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:50:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:6:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:75:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const double&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const double& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:75:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:6:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:82:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, float)
 inline void operator<< (msgpack::object& o, float v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:82:13: note:   no known conversion for argument 2 from ‘const color’ to ‘float’
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:88:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, double)
 inline void operator<< (msgpack::object& o, double v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:88:13: note:   no known conversion for argument 2 from ‘const color’ to ‘double’
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:94:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, float)
 inline void operator<< (msgpack::object::with_zone& o, float v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:94:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:97:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, double)
 inline void operator<< (msgpack::object::with_zone& o, double v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/float.hpp:97:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:8:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/list.hpp:46:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::list<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::list<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/list.hpp:46:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:8:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/list.hpp:58:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::list<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::list<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/list.hpp:58:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:9:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:66:33: note: template<class Stream, class K, class V> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const msgpack::v1::type::assoc_vector<K, V>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::assoc_vector<K,V>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:66:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:9:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:79:13: note: template<class K, class V> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const msgpack::v1::type::assoc_vector<K, V>&)
 inline void operator<< (msgpack::object::with_zone& o, const type::assoc_vector<K,V>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:79:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:9:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:126:33: note: template<class Stream, class K, class V> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::map<K, V>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::map<K,V>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:126:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:9:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:139:13: note: template<class K, class V> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::map<K, V>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::map<K,V>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:139:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:9:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:180:33: note: template<class Stream, class K, class V> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::multimap<K, V>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::multimap<K,V>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:180:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:9:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:193:13: note: template<class K, class V> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::multimap<K, V>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::multimap<K,V>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/map.hpp:193:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/msgpack_tuple.hpp:26:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:18,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/detail/cpp11_msgpack_tuple.hpp:123:32: note: template<class Stream, class ... Args> const msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const msgpack::v1::type::tuple<Args ...>&)
 const msgpack::packer<Stream>& operator<< (
                                ^
../third-party/msgpack-c/include/msgpack/adaptor/detail/cpp11_msgpack_tuple.hpp:123:32: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/adaptor/msgpack_tuple.hpp:26:0,
                 from ../third-party/msgpack-c/include/msgpack/type.hpp:18,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/detail/cpp11_msgpack_tuple.hpp:199:13: note: template<class ... Args> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const msgpack::v1::type::tuple<Args ...>&)
 inline void operator<< (
             ^
../third-party/msgpack-c/include/msgpack/adaptor/detail/cpp11_msgpack_tuple.hpp:199:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:10:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/nil.hpp:42:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const msgpack::v1::type::nil&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const type::nil&)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/nil.hpp:42:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:10:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/nil.hpp:48:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, msgpack::v1::type::nil)
 inline void operator<< (msgpack::object& o, type::nil)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/nil.hpp:48:13: note:   no known conversion for argument 2 from ‘const color’ to ‘msgpack::v1::type::nil’
../third-party/msgpack-c/include/msgpack/adaptor/nil.hpp:53:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, msgpack::v1::type::nil)
 inline void operator<< (msgpack::object::with_zone& o, type::nil v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/nil.hpp:53:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:11:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/pair.hpp:40:33: note: template<class Stream, class T1, class T2> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::pair<_Tp1, _Tp2>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::pair<T1, T2>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/pair.hpp:40:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:11:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/pair.hpp:49:13: note: template<class T1, class T2> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::pair<_T1, _T2>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::pair<T1, T2>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/pair.hpp:49:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:12:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/raw.hpp:76:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const msgpack::v1::type::raw_ref&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const msgpack::type::raw_ref& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/raw.hpp:76:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:12:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/raw.hpp:83:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, const msgpack::v1::type::raw_ref&)
 inline void operator<< (msgpack::object& o, const msgpack::type::raw_ref& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/raw.hpp:83:13: note:   no known conversion for argument 2 from ‘const color’ to ‘const msgpack::v1::type::raw_ref&’
../third-party/msgpack-c/include/msgpack/adaptor/raw.hpp:90:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const msgpack::v1::type::raw_ref&)
 inline void operator<< (msgpack::object::with_zone& o, const msgpack::type::raw_ref& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/raw.hpp:90:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:13:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:47:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::set<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::set<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:47:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:13:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:59:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::set<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::set<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:59:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:13:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:97:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::multiset<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::multiset<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:97:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:13:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:109:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::multiset<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::multiset<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/set.hpp:109:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:14:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/string.hpp:48:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const string&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::string& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/string.hpp:48:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:14:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/string.hpp:56:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const string&)
 inline void operator<< (msgpack::object::with_zone& o, const std::string& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/string.hpp:56:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
../third-party/msgpack-c/include/msgpack/adaptor/string.hpp:66:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, const string&)
 inline void operator<< (msgpack::object& o, const std::string& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/string.hpp:66:13: note:   no known conversion for argument 2 from ‘const color’ to ‘const string& {aka const std::basic_string<char>&}’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:15:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/vector.hpp:50:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::vector<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::vector<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/vector.hpp:50:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:15:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/vector.hpp:62:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::vector<_RealType>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::vector<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/vector.hpp:62:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:16:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/vector_bool.hpp:46:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::vector<bool>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::vector<bool>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/vector_bool.hpp:46:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:16:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/vector_bool.hpp:56:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::vector<bool>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::vector<bool>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/vector_bool.hpp:56:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:17:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/vector_char.hpp:50:33: note: template<class Stream> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::vector<char>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::vector<char>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/vector_char.hpp:50:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:17:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/vector_char.hpp:59:13: note: void msgpack::v1::operator<<(msgpack::v1::object&, const std::vector<char>&)
 inline void operator<< (msgpack::object& o, const std::vector<char>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/vector_char.hpp:59:13: note:   no known conversion for argument 2 from ‘const color’ to ‘const std::vector<char>&’
../third-party/msgpack-c/include/msgpack/adaptor/vector_char.hpp:67:13: note: void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::vector<char>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::vector<char>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/vector_char.hpp:67:13: note:   no known conversion for argument 1 from ‘msgpack::v1::object’ to ‘msgpack::v1::object::with_zone&’
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:28:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array.hpp:50:33: note: template<class Stream, class T, long unsigned int N> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::array<_Tp, _Nm>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::array<T, N>& v) {
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array.hpp:50:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:28:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array.hpp:58:13: note: template<class T, long unsigned int N> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::array<_Tp, _Nm>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::array<T, N>& v) {
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array.hpp:58:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:29:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array_char.hpp:51:33: note: template<class Stream, long unsigned int N> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::array<char, N>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::array<char, N>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array_char.hpp:51:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:29:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array_char.hpp:61:13: note: template<long unsigned int N> void msgpack::v1::operator<<(msgpack::v1::object&, const std::array<char, N>&)
 inline void operator<< (msgpack::object& o, const std::array<char, N>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array_char.hpp:61:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   mismatched types ‘const std::array<char, N>’ and ‘const color’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:29:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array_char.hpp:70:13: note: template<long unsigned int N> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::array<char, N>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::array<char, N>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/array_char.hpp:70:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:30:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/forward_list.hpp:46:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::forward_list<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::forward_list<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/forward_list.hpp:46:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:30:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/forward_list.hpp:55:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::forward_list<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::forward_list<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/forward_list.hpp:55:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:31:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/tuple.hpp:61:39: note: template<class Stream, class ... Args> const msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::tuple<_Elements ...>&)
 inline const msgpack::packer<Stream>& operator<< (
                                       ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/tuple.hpp:61:39: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:31:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/tuple.hpp:138:13: note: template<class ... Args> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::tuple<_Elements ...>&)
 inline void operator<< (
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/tuple.hpp:138:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:32:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:48:33: note: template<class Stream, class K, class V> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::unordered_map<K, V>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::unordered_map<K,V>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:48:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:32:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:61:13: note: template<class K, class V> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::unordered_map<K, V>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::unordered_map<K,V>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:61:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:32:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:102:33: note: template<class Stream, class K, class V> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::unordered_multimap<K, V>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::unordered_multimap<K,V>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:102:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:32:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:115:13: note: template<class K, class V> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::unordered_multimap<K, V>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::unordered_multimap<K,V>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_map.hpp:115:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:33:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:47:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::unordered_set<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::unordered_set<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:47:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:33:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:59:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::unordered_set<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::unordered_set<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:59:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:33:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:97:33: note: template<class Stream, class T> msgpack::v1::packer<Stream>& msgpack::v1::operator<<(msgpack::v1::packer<Stream>&, const std::unordered_multiset<T>&)
 inline msgpack::packer<Stream>& operator<< (msgpack::packer<Stream>& o, const std::unordered_multiset<T>& v)
                                 ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:97:33: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   ‘msgpack::v1::object’ is not derived from ‘msgpack::v1::packer<Stream>’
     msgpack::operator<<(*this, v);
                                 ^
In file included from ../third-party/msgpack-c/include/msgpack/type.hpp:33:0,
                 from ../third-party/msgpack-c/include/msgpack/object.hpp:710,
                 from ../main.cpp:2:
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:109:13: note: template<class T> void msgpack::v1::operator<<(msgpack::v1::object::with_zone&, const std::unordered_multiset<T>&)
 inline void operator<< (msgpack::object::with_zone& o, const std::unordered_multiset<T>& v)
             ^
../third-party/msgpack-c/include/msgpack/adaptor/cpp11/unordered_set.hpp:109:13: note:   template argument deduction/substitution failed:
In file included from ../main.cpp:2:0:
../third-party/msgpack-c/include/msgpack/object.hpp:491:33: note:   cannot convert ‘*(msgpack::v1::object*)this’ (type ‘msgpack::v1::object’) to type ‘msgpack::v1::object::with_zone&’
     msgpack::operator<<(*this, v);
                                 ^

The Debian armhf build of 3.3.0 is failing the mentioned test.

Since it's using EXPECT_TRUE() instead of EXPECT_EQ(), there's not much diagnostic information in the build log (although there are a lot of warnings in the build). I was able to reproduce the issue on one of our porter systems, and changed the assertion to

EXPECT_EQ(obj.as<std::chrono::system_clock::time_point>(), v);

I was hoping that would give more clarity about why the test failed, but instead the test passes whenever I run with that change.

If it helps, I could provide the annotated assembly that's generated for that test function.

Under Xcode 9.3, I'm not able to build msgpack-c because Xcode currently has C++17's optional under the experimental namespace.

/msgpack/include/msgpack/v1/adaptor/cpp17/optional.hpp

Line 19: #include <optional>

Xcode fails with the error "optional not found".

In my Xcode project, I have the following build settings:

• C++ Language Dialect: C++17 [-std=c++17]
• C++ Standard Library: libc++(LLVM...)

It would be super neat if I could use msgpack as a pure wire format reader/visitor without having to create a result msgpack::object.

For instance, my class msgpack_from_json_handler can be passed to rapidjson::Reader::Parse() as a parameter and will be called back on every element in the JSON tree.

With unpack_reference_func(), I can avoid copying all string data with a zone. However, I still have to let msgpack generate a msgpack::object tree, with allocations depending on the non-leaf objects / depth of the tree. In some situations, a simple visitor pattern would work better.

Here are two example use cases:

• Converting msgpack to a custom type/variant without allocations ("use case 1")

Elvis's library deals mostly with JSON data. Internally he stores much of his data as RapidJSON variant values. He decides he also wants to support serialialization to and from msgpack. He needs to process lots of data and packing/unpacking is a hot code path, so it needs to perform as fast as possible. For serializing to msgpack, he can use pack()/pack_map()/pack_array() functions and json-msgpack. He also wants to be able to read directly from a msgpack buffer into a RapidJSON variant, skipping the intermediate step of the msgpack::object because his variant can represent the same data in a format that the rest of his code uses.

[Note that instead of unpacking into JSON, one could also make use cases for msgpack::type::variant, known user-defined message objects, etc.]

• Checking msgpack contents without unpacking them ("use case 2")

Jakob wants to implement a SQLite extension function that checks if a serialized msgpack buffer (stored in a column of a SQLite table) contains a certain string. He wants to issue SQL queries such as, SELECT * FROM table WHERE msgpack_array_contains(msgpack_column, id) and implement the msgpack_column() extension function in the most efficient way, because it will be executed for a lot of rows. He would like to write a visitor class that gets called on each item and aborts unpacking when an array item equals id (after setting a found flag to true), or when the top-level msgpack type is something other than ARRAY. He does not care about a return type, neither msgpack::object nor any other variant.

I think RapidJSON's SAX interface (passed to rapidjson::Reader::Parse()) would be a pretty good starting point, with minor adaptations required to suit msgpack's object model. Here's an initial draft of a (template) interface for C++ classes implementing a msgpack visitor, and a suitable unpack() overload:

struct unpack_visitor {
    bool visit_nil();
    bool visit_boolean(bool);
    bool visit_positive_integer(uint64_t);
    bool visit_negative_integer(int64_t);
    bool visit_float(double);
    bool visit_str(const char*, uint32_t size, bool needs_copy); // still not sure why you're not using size_t
    bool visit_bin(const char*, uint32_t size, bool needs_copy);
    bool visit_ext(int8_t type, const char* data, uint32_t size, bool needs_copy);
    bool start_array(uint32_t num_elements);
    bool end_array();
    bool start_map(uint32_t num_kv_pairs);
    bool start_map_key(); // this one could be void, but since all others are bool, might as well keep this one too
    bool end_map_key();
    bool end_map();
    void parse_error(size_t parsed_offset, size_t error_offset);
    void insufficient_bytes(size_t parsed_offset, size_t error_offset);
}

template <typename UnpackVisitor>
bool unpack(const char* data, size_t len, size_t& off, UnpackVisitor&);

[Edit: changed begin_*() to start_*() as RapidJSON, Qt and the Java SAX API all use start as well.]

I prepended visit_ to single-value functions so we don't get issues with keywords (bool float(double);) or the Apple nil define, and msgpack's lower-case naming can still be employed.

The bool return value of all of those represents a successful parse (true for "continue parsing", false for "parse error"). The unpack() function is specified in a way that an exception-less interface can be built with it and all current unpack() functions can be implemented with this unpack() overload and a visitor:

• The zone and stack of result msgpack objects can be members of the visitor object, which uses/writes/manages them.
• Stream-level errors (parse_error and insufficient_bytes) are called as error functions in the visitor, which can decide to either throw or store them as state in the visitor object (and do custom error handling afterwards).
  • For use case 2: A caller who does avoids throwing exceptions can distinguish between legitimate parse errors and "found, now abort" early return situations by determining whether error functions have been called. If I know that my object is valid msgpack, an early return will save me some reads and processing time.
  • I chose to include offset parameters for the error functions, because it could be useful for error reporting (invalid bytes range from parsed_offset to error_offset). error_offset is the same value as the off parameter in unpack(). When used within an unpacker, parsed_offset equals parsed_size() and error_offset equals parsed_size() + nonparsed_size() (assuming I understand the purpose of these values correctly).
• unpack_limit and size_overflow errors can be thrown by the visitor functions themselves.
• unpack_reference_func can be called by visit_str(), visit_bin() and visit_ext().
  • user_data can be a member of the visitor class.
• unpacker can't be implemented on top of this overload because unpack() doesn't take a parse context object. (The visitor object likely contains a stack of msgpack objects, but does not tell the calling parser about the stack depth. That's a good thing because it makes the visitor object more lightweight and easier to implement if no stack information is necessary.) However, it should be possible to use the same visitor object for unpacker as for regular unpack() overloads, assuming that insufficient_bytes() doesn't throw.
• The off result parameter might be important for error messages. It's required here in addition to the visitor's error functions because if false is returned from a visit_*()/start_*()/end_*() function, the visitor itself does not know the current offset so it can't store it as state. Hence unpack() itself must maintain and return it.

Personally, I find this interface a lot more approachable and easier to understand than unpack_reference_func and unpack_limit. Even though it is simpler in concept, it is also more flexible. I hope something like this can be supported by msgpack-c.

Similar to #1005, there seems to be a dependency on boost/predef/other/endian.h when building with MSGPACK_USE_BOOST=OFF.

I have reproduced this issue on both Linux and Windows.

Minimal reproducible example: https://github.com/leocencetti/msgpack-c-issue-1025-example

(base)[email protected]:~/Software/comm-protocol$ cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DMSGPACK_USE_BOOST=OFF
-- The C compiler identification is GNU 11.2.0
-- The CXX compiler identification is Clang 14.0.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Doxygen: /usr/bin/doxygen (found version "1.9.1") found components: doxygen missing components: dot
-- Found Python: /usr/bin/python3.10 (found version "3.10.4") found components: Interpreter 
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- Configuring done
-- Generating done
-- Build files have been written to: /home/leonardo/Software/comm-protocol/build

(base) [email protected]:~/Software/comm-protocol$ cmake --build build
[1/15] Building CXX object comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o
FAILED: comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/comm_protocol -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -O3 -DNDEBUG -MD -MT comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o -MF comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o.d -o comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolSensorDef.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolSensorDef.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolSensorDef.cpp:11:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[2/15] Building CXX object comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o
FAILED: comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/comm_protocol -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -O3 -DNDEBUG -MD -MT comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o -MF comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o.d -o comm_protocol/CMakeFiles/comm_protocol.dir/src/commProtocolHandle.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolHandle.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/src/commProtocolHandle.cpp:12:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolHandle.h:15:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[4/15] Building CXX object comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o
FAILED: comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest -O3 -DNDEBUG -MD -MT comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o -MF comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o.d -o comm_protocol/tests/unit/CMakeFiles/test_sensor_def.dir/test_sensor_def.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_sensor_def.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_sensor_def.cpp:3:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[6/15] Building CXX object comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o
FAILED: comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o 
/usr/bin/c++  -I/home/leonardo/Software/comm-protocol/comm_protocol/include -I"/home/leonardo/Software/comm-protocol/comm_protocol/\$<BUILD_INTERFACE:/home/leonardo/Software/comm-protocol/comm_protocol/include" -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include -I/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-build/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googletest -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googlemock/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/googlemock -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src/include -isystem /home/leonardo/Software/comm-protocol/build/_deps/gtest-src -O3 -DNDEBUG -MD -MT comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o -MF comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o.d -o comm_protocol/tests/unit/CMakeFiles/test_comm_protocol_handle.dir/test_comm_protocol_handle.cpp.o -c /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_comm_protocol_handle.cpp
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/tests/unit/test_comm_protocol_handle.cpp:7:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolHandle.h:15:
In file included from /home/leonardo/Software/comm-protocol/comm_protocol/include/comm_protocol/commProtocolSensorDef.h:15:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack.hpp:10:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/object_decl.hpp:14:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/pack_decl.hpp:13:
In file included from /home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/v1/pack_decl.hpp:15:
/home/leonardo/Software/comm-protocol/build/_deps/msgpackc-src/include/msgpack/sysdep.hpp:102:10: fatal error: 'boost/predef/other/endian.h' file not found
#include <boost/predef/other/endian.h>
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.
[8/15] Building CXX object _deps/gtest-build/googletest/CMakeFiles/gtest.dir/src/gtest-all.cc.o
ninja: build stopped: subcommand failed.

I see there is fixes for correct type cast.

Previously within pack.hpp was declaraion:

void append_buffer(const char* buf, size_t len)
    { m_stream.write(buf, len); }

Now there is couple of compile time overloads to respect valid type cast when len parameter is not size_t. But, what if method ::write has overloads ? In this case &Stream::write will not be compiled (because compiler has ambiguity).

I have class Writer with 'primary' write method

virtual void write(const std::byte*, size_t size) = 0;

and second 'utility' method:

void write(const char* bytes, size_t size)
{
	write(reinterpret_cast<const std::byte*>(bytes), size);
}

Second method introduced especially to using with msgpack-c, but for first parameter compatibility. As temporary solution i remove second 'utility' method from my Writer class and 'fix' pack.hpp as

void append_buffer(const char* buf, size_t len)
{
    append_buffer(m_stream, &Stream::write, buf, len);
}

template<typename S, typename R, typename Ptr, typename Size>
static void append_buffer(S& s, R (S::*) (Ptr, Size), const char* buf, size_t len)
{
  s.write(reinterpret_cast<Ptr>(buf), static_cast<Size>(len));
}

So the concerns I raised in issue #164 turned out not to be a problem. However, more recently in the AutobahnCpp issue queue, @oberstet brought up another concern: the Apache 2.0 license isn't compatible with GPLv2. This is documented by the Apache Foundation itself: http://www.apache.org/licenses/GPL-compatibility.html

In short, GPL projects that use Apache-licensed libraries (i.e. msgpack-c) are in a legal gray zone and might not be safe to distribute. This is because GPL's copyleft clauses extend to header-only libraries (*), but GPL's clauses are not compatible with those of the Apache license so the resulting license would be invalid.

(*) according to one of several reasonable interpretations, including that of the FSF that wrote the GPL

In other words, GPL projects probably shouldn't use msgpack-c, at least not its header-only C++ part. This limits the possible adoption of msgpack. Other licenses, such as the Boost license or the MIT license, do not have this problem.

Please consider if this is something you want to fix. If you decide to take action, you need to get approvals of all copyright holders to change the license.

For example, the installed file include/msgpack/v1/adaptor/cpp11/chrono.hpp includes boost/numeric/conversion/cast.hpp without being conditional on MSGPACK_USE_BOOST.

Version: 4.1.2 FreeBSD 13.1

Hello, I'm using the msgpack-c library in my project. I've been working with the msgpack_pack_str_body and msgpack_pack_int16 functions without problem. Now I want to use the msgpack_unpack_next and msgpack_object_print functions as in the "Simple program with a loop" but I get the following compilation error:

[5/7] Linking CXX executable mqtt_tcp.elf
FAILED: mqtt_tcp.elf 
.
.
.
b/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld: esp-idf/main/libmain.a(message_pack_functions.c.obj): in function `messagepack_encoding':
/home/esp/IoTlift/mqtt-tcp/build/../main/message_pack_functions.c:77: undefined reference to `msgpack_unpack_next'
/home/.espressif/tools/riscv32-esp-elf/esp-2021r2-patch3-8.4.0/riscv32-esp-elf/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld: /home/esp/IoTlift/mqtt-tcp/build/../main/message_pack_functions.c:81: undefined reference to `msgpack_object_print'
/home/.espressif/tools/riscv32-esp-elf/esp-2021r2-patch3-8.4.0/riscv32-esp-elf/bin/../lib/gcc/riscv32-esp-elf/8.4.0/../../../../riscv32-esp-elf/bin/ld: esp-idf/main/libmain.a(message_pack_functions.c.obj): in function `msgpack_unpacked_destroy':
/home/esp/IoTlift/mqtt-tcp/build/../msgpack-c/msgpack-c-c_master/include/msgpack/unpack.h:260: undefined reference to `msgpack_zone_free'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
ninja failed with exit code 1

Nevertheless, the library is included in the project and msgpack_zone_free is in "zone.h" file which is included in "unpack.h" file. How can I solve this problem?

Is there anyway to control which fields are packed or unpacked on a call by call basis?

Can I do something like this?

struct C
{
    int a;
    int b;
    int c;
    MSGPACK_DEFINE_MAP(a, b, c);
};

C c1;
c1.a = 1;
c1.b = 2;
c1.c = 3;

msgpack::sbuffer buff;
msgpack::packer<msgpack::sbuffer> packer(buff);

// only pack fields a and b
std::string fields1[] = { "a", "b" };
packer.pack(c1, fields1);

// only unpack field a
std::string fields2[] = { "a" };
msgpack::object_handle handle = msgpack::unpack(buff.data(), buff.size(), fields2);
msgpack::object obj = handle.get();
C c2;
obj.convert(c2);

For better visibility of this issue I've switched to onluy man pages using patch

--- a/Doxyfile~ 2021-09-01 03:10:58.000000000 +0100
+++ b/Doxyfile  2021-09-13 14:41:57.758506584 +0100
@@ -768,7 +768,7 @@
 # If the GENERATE_HTML tag is set to YES (the default) Doxygen will
 # generate HTML output.

-GENERATE_HTML          = YES
+GENERATE_HTML          = NO

 # The HTML_OUTPUT tag is used to specify where the HTML docs will be put.
 # If a relative path is entered the value of OUTPUT_DIRECTORY will be
@@ -1018,7 +1018,7 @@
 # If the GENERATE_LATEX tag is set to YES (the default) Doxygen will
 # generate Latex output.

-GENERATE_LATEX         = YES
+GENERATE_LATEX         = NO

 # The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put.
 # If a relative path is entered the value of OUTPUT_DIRECTORY will be

@@ -1143,7 +1143,7 @@
 # If the GENERATE_MAN tag is set to YES (the default) Doxygen will
 # generate man pages

-GENERATE_MAN           = NO
+GENERATE_MAN           = YES

 # The MAN_OUTPUT tag is used to specify where the man pages will be put.
 # If a relative path is entered the value of OUTPUT_DIRECTORY will be