Is there a simple way to check whether the json string to be parsed is valid?

[Cuadrix]

Something like;

std::string some_string = "Hello world!"

jsoncons::is_valid(some_string); // bool
// output: false

Or maybe by error handling?
Is there any examples on this by error handling? I don't seem to find any

[danielaparker]

The closest would be

json_reader reader(some_string);

std::error_code ec;
reader.read(ec);
if (ec)
{
    std::cout << ec.message() 
              << " on line " << reader.line()
              << " and column " << reader.column()
              << std::endl;
}

That parses and validates, but doesn't return anything. See Validate JSON without incurring parse exceptions