JSON for Modern C++

#1

Post by gballan » Sun, Sep 29, 2019, 8:35 AM UTC

Re: JSON for Modern C++

#2

Post by stevekemp » Sun, Sep 29, 2019, 9:05 AM UTC

Kudos on the very thorough readme, complete with CMake instructions, most of the time people take it for granted that you know how to embed libraries and dependencies.

Writing documentation, and easing users into your project, is an underrated skill.

Re: JSON for Modern C++

#3

Post by amirmasoudabdol » Sun, Sep 29, 2019, 9:12 AM UTC

This is a solid project and I’m using it in many different projects for years. The developer team is responsive and care about the quality of the project as well as people’s need. I can not recommend it enough.

Re: JSON for Modern C++

#4

Post by wodenokoto » Sun, Sep 29, 2019, 9:16 AM UTC

> In languages such as Python, JSON feels like a first class data type.

Is that because the python dictionary happens to looks so much like json, or what do they mean?

Re: JSON for Modern C++

#5

Post by einpoklum » Sun, Sep 29, 2019, 9:20 AM UTC

stevekemp wrote: post #2

Kudos on the very thorough readme, complete with CMake instructions, most of the time people take it for granted that you know how to embed libraries and dependencies. Writing documentation, and easing users into your project, is an underrated skill.

Actually, a detailed documentation belongs in a Wiki or a separate markdown document, that README.md is a bit much...

Re: JSON for Modern C++

#6

Post by mirsadm » Sun, Sep 29, 2019, 9:20 AM UTC

I have been using json11 for a few years now (https://github.com/dropbox/json11). It looks like it has been abandoned though. This seems like a great alternative.

Re: JSON for Modern C++

#7

Post by einpoklum » Sun, Sep 29, 2019, 9:25 AM UTC

How does this compare with RapidJSON, JSONCpp and JSON Spirit - other popular C++ JSON parser libraries?

Links:

http://rapidjson.org/ https://github.com/Tencent/rapidjson

https://github.com/open-source-parsers/jsoncpp

https://www.codeproject.com/Articles/20027/JSON-Spirit-A-C-J...

Re: JSON for Modern C++

#8

Post by gsaga » Sun, Sep 29, 2019, 9:33 AM UTC

wodenokoto wrote: post #4

> In languages such as Python, JSON feels like a first class data type. Is that because the python dictionary happens to looks so much like json, or what do they mean?

Yeah, that's probably what they meant.

Re: JSON for Modern C++

#9

Post by Kh4L » Sun, Sep 29, 2019, 9:34 AM UTC

einpoklum wrote: post #7

How does this compare with RapidJSON, JSONCpp and JSON Spirit - other popular C++ JSON parser libraries? Links: http://rapidjson.org/ https://github.com/Tencent/rapidjson https://github.com/open-source-parsers/jsoncpp https://www.codeproject.com/Articles/20027/JSON-Spirit-A-C-J...

We used to use. We first micro-benchmarked all those and we found that Tencent/rapidjson was more than 100% faster than nlohmann/json :)

Our primary use is to parse http://cocodataset.org/ metadata files and RapidJson is 100% faster.

Re: JSON for Modern C++

#10

Post by masklinn » Sun, Sep 29, 2019, 9:43 AM UTC

wodenokoto wrote: post #4

> In languages such as Python, JSON feels like a first class data type. Is that because the python dictionary happens to looks so much like json, or what do they mean?

Yes, though more the other way around: part of json's appeal (on purpose) is that it covers the core subtypes of most dynamically typed programming languages (strings, number, booleans, arrays and maps), so moving data to and from json is straightforward and convenient.