Long changing from positive to negative when parsing

Question

I'm parsing OSM XML data into c#.

I have a weird problem, each node has an id that is a long datatype. When parsing, if the id is 9 or less digits long, it seems to work just fine. However once it reaches 10 digits long, for some reason I start to get negative number from the parsing. Is there a reason for why this might be.

I'm using a library called OSMSharp for parsing. Language is c#.

An example of this: This way has 2 nodes:

way id="313281300" 
nd ref="248877110"
nd ref="3191908562"*

After being parsed, I get this:

way: 313281300

248877110

-1103058734

Could this be a bug from the parsing library, or is it caused by c#?

Thank you in advance

*I made this xml short for ease of read. It's the full xml for the way in the file I'm parsing from

Accepted Answer

3

Are you sure you are using the latest version of OSMSharp and long definitions throughout? It looks like it is having problems relayed to http://wiki.openstreetmap.org/wiki/64-bit_Identifiers

permanent link

answered 26 Mar '15, 20:37

EdLoach ♦
19.5k●16●156●280
accept rate: 22%

this might be it actually. The only problem is the newer versions of OSMSharp don't support parsing. I will investigate further. Thanks

(26 Mar '15, 20:52) echoalphapapa

Long changing from positive to negative when parsing

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