Question about converting uuid to uid in oid string format

[vbaderks]

Hi Marius,

If I would want to use this uuid type and get a string in the ISO/IEC 9834-8 UID format, would that mean I would need to use the iterators and create that format myself, or would the std::uuid type support that format also?

Reference:
http://dicom.nema.org/dicom/2013/output/chtml/part05/sect_B.2.html
also chapter 8 of the ISO/IEC 9834-8 standard, aka: 2.25.329800735698586629295641978511506172918

Victor

[mariusbancila]

So you want the library to have a way or producing a string representation of a UUID in the format "2.25.329800735698586629295641978511506172918". Did I get that right?

ISO/IEC 9834-8 / ITU-T X.667 defines a method by which a UID may be constructed from the root "2.25." followed by a decimal representation of a Universally Unique Identifier (UUID). That decimal representation treats the 128 bit UUID as an integer, and may thus be up to 39 digits long (leading zeros must be suppressed).

[vbaderks]

Hi Marius,

Yes, that right.
However the root "2.25" is mainly used in the medical domain (DICOM standard). A to_string function that would just return the uuid in its integer format (aka 329800735698586629295641978511506172918) would be already be helpful. Adding one of the prefixes as documented in ISO/IEC 9834-8 can then be done by the application.