Lessons learned from 15 years of SumatraPDF, an open source Windows app

• Pinta

  5 1,636 9.7 C#

  Simple GTK# Paint Program

  

• json

  93 40,239 7.7 C++

  JSON for Modern C++

I think writing a JSON parser should be perfectly fine, it's quite a simple (while imperfect) format. I would say 50 lines of header + 500 lines of .cpp file should be plenty to write a solid implementation, should be doable in an afternoon.

But if you disagree, you should try this: https://github.com/nlohmann/json

Last I checked, a git clone download 260 Megabytes of data. The project consists of many many files, but most notably it is a C++ header-only library consisting of 24000 lines of header file to be included into every (transitively) dependent .cpp file.

Just #include it and add a simple main() { printf("Hello, world\n"); }, this will take about 1 sec to compile on my laptop.

Add a tiny amount of code to "parse" the JSON string "3" (which I think is not valid JSON actually. But anyway) and compile + link. Takes 2 secs on my laptop. With -O2, I'm at 3.5 seconds.

Imagine writing a larger project with many many .cpp file that include a header file that publishes such a dependency.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

Suggest a related project