[ZooLib-checkins] SF.net SVN: zoolib:[2567] trunk/zoolib/source/cxx/zoolib/ZCog.h

[<ag...@us...>]

Revision: 2567
          http://zoolib.svn.sourceforge.net/zoolib/?rev=2567&view=rev
Author:   agreen
Date:     2011-10-17 13:11:14 +0000 (Mon, 17 Oct 2011)
Log Message:
-----------
Add ZCogCombiner variants, for use with ZAccumulator_T.

Modified Paths:
--------------
    trunk/zoolib/source/cxx/zoolib/ZCog.h

Modified: trunk/zoolib/source/cxx/zoolib/ZCog.h
===================================================================
--- trunk/zoolib/source/cxx/zoolib/ZCog.h	2011-10-17 13:10:37 UTC (rev 2566)
+++ trunk/zoolib/source/cxx/zoolib/ZCog.h	2011-10-17 13:11:14 UTC (rev 2567)
@@ -293,6 +293,18 @@
 	const ZRef<ZCallable<ZCog<Param>(const ZCog<Param>&,Param)> >& iCallable1)
 	{ return ioCog0 = sCog_Either<Param>(ioCog0, iCallable1); }
 
+template <class Param>
+struct ZCogCombiner_Either
+	{
+	void operator()(ZCog<Param>& io0, const ZCog<Param>& i1) const
+		{
+		if (io0)
+			io0 = sCog_Either(io0, i1);
+		else
+			io0 = i1;
+		}
+	};
+
 // =================================================================================================
 #pragma mark -
 #pragma mark * sCog_Both
@@ -385,6 +397,18 @@
 	const ZRef<ZCallable<ZCog<Param>(const ZCog<Param>&,Param)> >& iCallable1)
 	{ return ioCog0 = sCog_Both<Param>(ioCog0, iCallable1); }
 
+template <class Param>
+struct ZCogCombiner_Both
+	{
+	void operator()(ZCog<Param>& io0, const ZCog<Param>& i1) const
+		{
+		if (io0)
+			io0 = sCog_Both(io0, i1);
+		else
+			io0 = i1;
+		}
+	};
+
 // =================================================================================================
 #pragma mark -
 #pragma mark * sCog_Each
@@ -465,6 +489,18 @@
 	const ZRef<ZCallable<ZCog<Param>(const ZCog<Param>&,Param)> >& iCallable1)
 	{ return ioCog0 = sCog_Each<Param>(ioCog0, iCallable1); }
 
+template <class Param>
+struct ZCogCombiner_Each
+	{
+	void operator()(ZCog<Param>& io0, const ZCog<Param>& i1) const
+		{
+		if (io0)
+			io0 = sCog_Each(io0, i1);
+		else
+			io0 = i1;
+		}
+	};
+
 // =================================================================================================
 #pragma mark -
 #pragma mark * sCog_FollowedBy

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