[Aptitude-svn-commit] r4000 - in branches/aptitude-0.3/aptitude: .
src/generic
Daniel Burrows
dburrows at costa.debian.org
Tue Aug 30 20:06:05 UTC 2005
Author: dburrows
Date: Tue Aug 30 20:06:02 2005
New Revision: 4000
Modified:
branches/aptitude-0.3/aptitude/ChangeLog
branches/aptitude-0.3/aptitude/src/generic/util.h
Log:
Add project1st.
Modified: branches/aptitude-0.3/aptitude/ChangeLog
==============================================================================
--- branches/aptitude-0.3/aptitude/ChangeLog (original)
+++ branches/aptitude-0.3/aptitude/ChangeLog Tue Aug 30 20:06:02 2005
@@ -2,6 +2,10 @@
* src/generic/util.h:
+ Also add project1st.
+
+ * src/generic/util.h:
+
Add some missing functor classes that are in libstdc++ but
aren't standard.
Modified: branches/aptitude-0.3/aptitude/src/generic/util.h
==============================================================================
--- branches/aptitude-0.3/aptitude/src/generic/util.h (original)
+++ branches/aptitude-0.3/aptitude/src/generic/util.h Tue Aug 30 20:06:02 2005
@@ -63,6 +63,26 @@
}
};
+/** A function object that returns its first argument. */
+template<typename T1, typename T2>
+struct project1st
+{
+ T1 operator()(const T1 &t1, const T2 &t2) const
+ {
+ return t1;
+ }
+};
+
+/** A function object that returns its second argument. */
+template<typename T1, typename T2>
+struct project2nd
+{
+ T2 operator()(const T1 &t1, const T2 &t2) const
+ {
+ return t2;
+ }
+};
+
/** A function object that extracts the first element from a pair. */
template<typename T1, typename T2>
struct select1st
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