NaN value in an array add unexpected comma

[AKA-MMM]

Hi,
I'm trying to serialize an array with the values [0, 2, NaN, NaN] to obtain a JSON Array representation. For this, I have configured the encoder as follow:
` jsoncons::basic_json_options options;

options.nan_to_str("NaN");

options.inf_to_str("Inf");

options.neginf_to_str("NegInf");

m_encoder= new jsoncons::compact_json_stream_encoder(p_io, options);

`
So, I expect the following result: [0, 2, "NaN", "NaN"]. But, the obtained result is [0, 2, "NaN",,"NaN"]. E.g. I have an unexpected comma between the two strings "NaN". Without the options, the result is [0, 2, Null, Null] (no unexpected comma). This difference comes from the way NaN (and also infinities) are managed. Without option (or with the option nan_to_num), visit_double() just add the "Null" string by sink.append. With the option nan_to_str, visit_double() calls visit_string(). Hence visit_string() adds a first comma. And visit_double() adds the second comma.

• Latest release 0.173.4

[danielaparker]

Thanks for reporting this, we'll look into it.

[danielaparker]

Fixed on master