Question 1

How to handle JSON parsing errors in json11?

Accepted Answer

Use the static Json::parse method, which may throw exceptions on invalid input, but error handling details are sparse in the README, requiring users to check the source code for specifics.

Question 2

json11 vs nlohmann/json: which should I choose?

Accepted Answer

json11 is lighter and header-only, ideal for minimal dependencies. nlohmann/json offers more features like JSON Pointer and better documentation, but is larger. Pick based on your project's complexity and size constraints.

Question 3

Can json11 efficiently handle large JSON files?

Accepted Answer

No, it parses the entire JSON into memory, so for very large files, it may not be efficient compared to streaming parsers like RapidJSON, which support incremental parsing to reduce memory usage.

Question 4

How to serialize a custom C++ class to JSON with json11?

Accepted Answer

Implement a to_json method in your class that returns a Json object, as shown in the README with the Point class example, allowing automatic conversion via implicit constructors.

Question 5

Does json11 support JSON comments or relaxed syntax?

Accepted Answer

No, it strictly adheres to the standard JSON specification and does not support comments, trailing commas, or other extensions like JSON5, limiting flexibility for configuration files.

Question 6

Is json11 suitable for high-performance applications?

Accepted Answer

It may not be optimal due to its value-oriented design and lack of performance benchmarks; for critical performance needs, consider libraries like RapidJSON with optimized parsing and memory management.

json11

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