what's the meaning of function json.dump()'s param : error_handler_t::ignore.

[chloro-pn]

Is it just copy the binary data to the json or just delete the invalid utf-8 bytes ?
like :

json j;
std::string data(ptr, n); // binary data.
j["some_data"] = data;
return j.dump(-1, ' ', false, json::error_handler_t::ignore); // can i use this param to pass binary data?

thanks for the answer : )

Through the test, I found that this method can't work : (
Maybe I can do this by converting strings to vector<char>, but I don't know if it will lead to inefficiency:

for(auto each : str) {
  j["binary"].push_back(each); // str.size() : 2KB ~ 4KB.
}

[nlohmann]

The ignore parameter copies invalid UTF-8 bytes verbatim to the output. Maybe the name is not too optimal - I will adjust the documentation.

Update: #2232

[nlohmann]

What exactly do you try to accomplish? I am asking, because the library has support for binary types, but I would need to understand your usecase better.

[chloro-pn]

I want to transfer both utf-8 data and binary data using JSON format. and I found the right way : using bson interface : )

[nlohmann]

Cool. Do you need further assistance on this?

[chloro-pn]

No, the document is very clear. Thank's a lot !