Revision: 13110
http://harbour-project.svn.sourceforge.net/harbour-project/?rev=13110&view=rev
Author: druzus
Date: 2009-12-03 23:24:14 +0000 (Thu, 03 Dec 2009)
Log Message:
-----------
2009-12-04 00:23 UTC+0100 Przemyslaw Czerpak (druzus/at/priv.onet.pl)
* harbour/contrib/rddads/ads1.c
* added support for dynamic descend flag switching by
ordDescend( [<tag>], [<bag>], <lDescending> ) -> <lPrevSetting>
It needs ADS 9.00 or higher and it's ignored in earlier ADS versions.
Based on Brian Hayes modification in xHarbour ADS RDD.
* harbour/src/rdd/dbfntx/dbfntx1.c
* harbour/src/rdd/dbfnsx/dbfnsx1.c
* harbour/src/rdd/dbfcdx/dbfcdx1.c
* harbour/contrib/rddads/ads1.c
* modified ordSkipUnique() to be compatible with CL53 - it means
that the passed parameter has a little bit different meaning when
table has active index and it hasn't.
If no index is active (natural order) then passed parameter is number
of records to skip just like in dbSkip() function otherwise it's only
direction choice so negative value means backward skipping and
zero or positive means forward skipping.
We may decide to change this behavior anyhow please remember that
it's not such clear what number of records to skip should mean during
skipping with active order having repeated key values and with working
filters which also can exclude some records. It's possible to create
few algorithms giving different results for some conditions.
Modified Paths:
--------------
trunk/harbour/ChangeLog
trunk/harbour/contrib/rddads/ads1.c
trunk/harbour/src/rdd/dbfcdx/dbfcdx1.c
trunk/harbour/src/rdd/dbfnsx/dbfnsx1.c
trunk/harbour/src/rdd/dbfntx/dbfntx1.c
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