jsonpath query empty array's length expect [0] but get []

[zongyanke]

Describe the bug
string jsonStr = R"(
{
"comments": []
}
)";
json data = json::parse(jsonStr.c_str());
json result = jsonpath::json_query(data, "$.comments.length");

result == [0]

result == []

[economicseries]

You're right, should be fixed on master, thanks for reporting this.

[danielaparker]

Fix is in 0.170.0