[ObjectHandler-cvs] ObjectHandler/oh utilities.hpp,1.15,1.16

[Ferdinando A. <na...@us...>]

Update of /cvsroot/objecthandler/ObjectHandler/oh
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv17773/oh

Modified Files:
	utilities.hpp 
Log Message:
new ohFilter function

Index: utilities.hpp
===================================================================
RCS file: /cvsroot/objecthandler/ObjectHandler/oh/utilities.hpp,v
retrieving revision 1.15
retrieving revision 1.16
diff -C2 -d -r1.15 -r1.16
*** utilities.hpp	2 Jan 2007 11:07:43 -0000	1.15
--- utilities.hpp	4 Jan 2007 17:11:27 -0000	1.16
***************
*** 25,28 ****
--- 25,30 ----
  
  #include <oh/objhandlerdefines.hpp>
+ #include <oh/exception.hpp>
+ #include <boost/any.hpp>
  #include <string>
  #include <vector>
***************
*** 84,87 ****
--- 86,106 ----
                                     bool token_compress);
  
+     template< typename T>
+     std::vector<T> filter(const std::vector<T> &in,
+                           const std::vector<bool> &flags) {
+         std::size_t size = in.size();
+         OH_REQUIRE(size==flags.size(),
+                    "size mismatch between value vector (" << size << 
+                    ") and flag vector (" << flags.size() << ")");
+ 
+         std::vector<T> out;
+         out.reserve(size); //excess capacity
+ 
+         for (std::size_t i=0; i<size; ++i)
+             if (flags[i]) out.push_back(in[i]);
+ 
+         return out;
+     }
+ 
      //@}
  }