I can set null for string, but can not set null for string value in map<string, string>, I will try to wrap my value within a struct like your suggestion.
Thanks & best Regards, KhoiNM -----Original Message----- From: Łukasz Michalik [mailto:[email protected]] Sent: Thursday, June 24, 2010 9:33 PM To: [email protected] Subject: Re: Problem with null value in Thrift map On 06:33 2010-06-24 -0700, Bryan Duxbury wrote: > Null is not directly supported by Thrift, though I think that some > libraries do their best to do *something*, which sounds like what > you're seeing. Maybe one of the PHP folks could remark as to what's happening? > As thrift claims to be multilingual, I can't possibly imagine how null would manage in C++. std::string can be "" and that's it, same with int (0) or double (0.0 -- well not completely, as IEEE 754 allows stuff like NaN, but that's not really same thing). There's no way to represent distinction between null and "". What you could do portably, it to wrap value that interests you in a struct with an extra boolean field is_null and store that in map. -- Pozdrawiam, Łukasz P. Michalik
