After updating to version 0.156.0 I got exception if querying empty string

[wenwenchenbosch]

I used before jsoncons 1.105.0 and the following code works:
jsoncons::json pathRes = jsonpath::json_query(json_tree, "", jsonpath::result_type::path);
as result, pathRes.size() is equal to 0.

After I update the version to 0.156.0. I got the following assert by running the code:

ERROR: Fatal runtime error: assertion 'state_stack_.size() == 2' failed at  <> :0

Is it a bug or feature?

Enumerate the steps to reproduce the bug

• compile the code above
• run it

Include a small, self-contained example if possible

What compiler, architecture, and operating system?

• Compiler: gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
• Architecture (e.g. x86, x64) x64
• Operating system: Ubuntu

What jsoncons library version?

• Latest release v0.156.0
• Other release ______
• master

[danielaparker]

Thanks for reporting this, you're right, pathRes should return an empty array for this case.

[danielaparker]

Fixed in patch release 0.156.1, and on master.