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| vances at motivity.ca |
 Posted: Fri Mar 14, 2003 5:11 am |
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Guest
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The User's Guide for the asn1 module erroneously refers to asn1_NOEXTVALUE
when the value actually used is asn1_NOVALUE.
Here is a diff from R9B-1:
diff ./lib/asn1-1.4.1/doc/html/asn1_ug.html ./lib/asn1-1.4.1/doc/html/asn1_ug.html.dist
814c814
< <PRE>-record('SExt',{a,b=asn1_NOVALUE}).
---
> <PRE>-record('SExt',{a,b=asn1_NOEXTVALUE}).
818c818
< component if present and otherwise the value <CODE>asn1_NOVALUE</CODE>.
---
> component if present and otherwise the value <CODE>asn1_NOEXTVALUE</CODE>.
-Vance
Vance Shipley
Motivity Telecom Inc.
+1 519 240 3684
vances_at_motivity.ca
Post generated using Mail2Forum (http://m2f.sourceforge.net) |
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| bertil.karlsson at uab.er |
| Posted: Tue Mar 18, 2003 11:00 am |
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Guest
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It's correct that the documentation is false. Thank you for commenting
this error!
The atom asn1_NOEXTVALUE has been removed since R6B, unfortunately we
have missed to update the documentation. However, we think that the
behaviour of the compiler is correct. The new documentation will be:
...
1.4.14 Notes about Extendability for SEQUENCE and SET
When a SEQUENCE or SET contains an extension marker and extension
components like this:
SExt ::= SEQUENCE {
a INTEGER,
...,
b BOOLEAN }
It means that the type may get more components in newer versions of the
ASN.1 spec. In this case it has got a new component b. Thus, incoming
messages that will be decoded may have more or fever components than
this one.
The component b will be treated as an original component when encoding a
message. In this case, as it is not an optional element, it must be encoded.
During decoding the b field of the record will get the decoded value of
the b component if present and otherwise the value asn1_NOVALUE.
...
/Bertil Karlsson
Vance Shipley wrote:
> The User's Guide for the asn1 module erroneously refers to asn1_NOEXTVALUE
> when the value actually used is asn1_NOVALUE.
>
> Here is a diff from R9B-1:
>
> diff ./lib/asn1-1.4.1/doc/html/asn1_ug.html ./lib/asn1-1.4.1/doc/html/asn1_ug.html.dist
> 814c814
> < <PRE>-record('SExt',{a,b=asn1_NOVALUE}).
> ---
>
>><PRE>-record('SExt',{a,b=asn1_NOEXTVALUE}).
>
> 818c818
> < component if present and otherwise the value <CODE>asn1_NOVALUE</CODE>.
> ---
>
>> component if present and otherwise the value <CODE>asn1_NOEXTVALUE</CODE>.
>
>
>
>
> -Vance
>
> Vance Shipley
> Motivity Telecom Inc.
> +1 519 240 3684
> vances_at_motivity.ca
--
/ Bertil Karlsson
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