Serialization of double type data gets stuck

[zhaoyuRobotics]

Description

hello, i meet a trouble when i use json , serializing double-type data will cause the process to freeze in grisu2. ,are you solve it ?

VERSION 3.9.1

Reproduction steps

Transmit double floating-point numbers

Expected vs. actual results

No stuck

Minimal code example

Error messages

Compiler and operating system

armv8 ubuntu16.04

Library version

3.9.1

Validation

• [ ] The bug also occurs if the latest version from the develop branch is used.
• [ ] I can successfully compile and run the unit tests.

[nlohmann]

Please provide some additional information:

• What did you try to do? json::parse("-4.503")? Please provide a minimal code example.
• Please try with the current release version (3.12.0) or the develop branch version. We will not be able to backport fixes to older releases.

[zhaoyuRobotics]

Thank you for your reply.

I'm sorry, I can't provide a reproducible example; this is an occasional occurrences. What I'm trying to do is return data of type vector<vector<double>>, which will be processed by this library to generate JSON-RPC formatted data.

Have you seen a similar stack trace? I suspect that Grisu2 might be stuck in an infinite loop due to a precision check not being met.

[nlohmann]

No, I never saw any issue with Grisu2.