Is the "ignore comments" option to json::parse working properly?

[bbalaban]

I'm trying out the optional "ignore comments" argument to json::parse(), and it doesn't seem to be working -- it's discarding the json.
Here's an example of the test JSON i'm trying to parse:
{
"@Unid": "B2D6958DCEF3B003C12588B5003719CD", // unid
"@NoteID": 4382, // note id
"@index": "32.27", // index
"$6": "1.0", // no idea what this is
"gender": "Female", // gender
"city": "New York City", // where?
"last_name": "Dovidian", // family name
"state": "New York", // where?
"first_name": "Florrie", // given name
"email": "[email protected]" // email
}

and my calling code looks like this:
json j = json::parse(bytes,
NULL, // no callback
false, // no exceptions please
true); // allow comments

Without the comments in the input JSON it works fine, with the comments, i get a "discarded" result.
I'm on version 3.9.1
Am I doing something wrong?

[nlohmann]

If you enable exceptions, what is the error message?

[bbalaban]

I enabled exceptions, got the same result. Returned json object is either null or discarded

…

On Wed, Aug 16, 2023 at 2:18 PM Niels Lohmann ***@***.***> wrote: If you enable exceptions, what is the error message? — Reply to this email directly, view it on GitHub <#4113 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AEJS6VDD7ZBCK2RTNSN66S3XVUFHBANCNFSM6AAAAAA3S3CSPY> . You are receiving this because you authored the thread.Message ID: ***@***.***>

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[nlohmann]

That cannot happen. Can you please share your complete code?

[bbalaban]

json j = json::parse(bytes,
NULL, // no callback
true, // enable exceptions
true); // allow comments

delete [] bytes;

if (!j.is_null() && !j.is_discarded())
    this->m_json = j;
else {
    //....
   // raise error and abort
    return;
}

Is it possible that different line endings after the comments would affect the parsing? E.g., \n vs. \r\n?

[bbalaban]

I figured it out, the code that was reading the text from a disk file was filtering out newlines, so ... own-goal