Hi Ramaswamy, The only reason I think of for doing this is if you want to to control the position in BER at which "age" is encoded (before middle-name in the first case, and after middle-name in the seccond case). Note that PER will put "age" at the end in both cases.
---------------------------------------------------------------------------- Paul E. Thorpe Toll Free : 1-888-OSS-ASN1 OSS Nokalva International: 1-732-302-0750 Email: [EMAIL PROTECTED] Tech Support : 1-732-302-9669 http://www.oss.com Fax : 1-732-302-0023 On Mon, 6 Oct 2003, Ramaswamy wrote: > Hi, > I have the following query regarding the significance of the 2nd extension > marker permitted in a SEQUENCE / SET type. > > What is the difference in interpretation / significance b/w the following 2 > notations of extended SEQUENCE across 2 different versions on the SEQUENCE. To be > more precise, what is the advantage / implication of using the 2nd extension marker > notation compared to the one with single-extension marker. > > -------------------------------------------------------------------------------- > > Details ::= -- Version1 > SEQUENCE > { > first-name PrintableString, > last-name PrintableString, > ..., > ..., > middle-name PrintableString > } > > =================================================================== > Details ::= -- Version2 > SEQUENCE > { > first-name PrintableString, > last-name PrintableString, > ..., > age INTEGER(0..999) > ..., > middle-name PrintableString > } > > -------------------------------------------------------------------------------- > > > > -------------------------------------------------------------------------------- > > Details ::= -- Version1 > SEQUENCE > { > first-name PrintableString, > last-name PrintableString, > middle-name PrintableString, > ... > } > > =================================================================== > Details ::= -- Version2 > SEQUENCE > { > first-name PrintableString, > last-name PrintableString, > middle-name PrintableString, > ..., > age INTEGER(0..999) > } > > -------------------------------------------------------------------------------- > > > Thanking you. > > Yours Sincerely > Ramaswamy >
