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|ID||Project||Category||View Status||Date Submitted||Last Update|
|0000095||Core Inform||Relations||public||2010-06-21 14:52||2010-10-28 00:30|
|Target Version||Fixed in Version||6F95|
|Summary||0000095: Static symmetric one-to-one relations of values are created as asymmetric (with solution)|
|Description||This is the output produced by the example source:|
R1 is symmetric.
|Minimal Source Text To Reproduce|
Home is a room. R1 relates one number to another. When play begins: now the R1 relation relates 3 to 7; say "R1 is [if the R1 relation is not symmetric]not [end if]symmetric."; say "Test [if the R1 relation relates 7 to 3]succeeded[otherwise]failed[end if]."
|Additional Information||This does not happen with a relation of things, nor with a dynamically created relation, nor with a static symmetric various-to-various relation of values. As can be seen, the relation claims to be symmetric, but it isn't really.|
|Tags||No tags attached.|
|Effect||(serious/mild) Game compiles but misbehaves|
|Attached Files||symmetric_o2o_eqv_relations.patch [^] (1,072 bytes) 2010-06-21 20:17 [Show Content]|
Something to do with the staticness... this works:
Home is a room.
R1 is a relation of numbers to numbers that varies.
When play begins:
now R1 is symmetric;
now R1 relates 3 to 7;
say "R1 is [if R1 is not symmetric]not [end if]symmetric.";
say "Test [if R1 relates 7 to 3]succeeded[otherwise]failed[end if]."
Whoops, that wasn't it at all; that working case makes a various-to-various relation.
The problem was that valency changes, like the generated code does to make a newly created relation symmetric, were not taking effect for one-to-one relations (or equivalence relations). The attached patch fixes it.
|All credit to Jesse; patch adopted.|
|2010-06-21 14:52||fundin||New Issue|
|2010-06-21 17:31||jmcgrew||Assigned To||=> jmcgrew|
|2010-06-21 17:31||jmcgrew||Status||new => confirmed|
|2010-06-21 17:45||jmcgrew||Note Added: 0000112|
|2010-06-21 20:17||jmcgrew||File Added: symmetric_o2o_eqv_relations.patch|
|2010-06-21 20:20||jmcgrew||Note Added: 0000114|
|2010-06-21 20:20||jmcgrew||Summary||Static symmetric one-to-one relations of values are created as asymmetric => Static symmetric one-to-one relations of values are created as asymmetric (with solution)|
|2010-06-21 20:21||jmcgrew||Assigned To||jmcgrew =>|
|2010-09-04 15:28||graham||Note Added: 0000517|
|2010-09-04 15:28||graham||Status||confirmed => resolved|
|2010-09-04 15:28||graham||Resolution||open => fixed|
|2010-09-04 15:28||graham||Assigned To||=> graham|
|2010-10-25 21:14||jmcgrew||Fixed in Version||=> 6F95|
|2010-10-28 00:30||jmcgrew||Status||resolved => closed|
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