From: Guido Kanschat <dr.guido.kanschat@gmail.com>
Date: Thu, 30 Mar 2006 19:39:34 +0000 (+0000)
Subject: add functions begin and end
X-Git-Tag: v8.0.0~11941
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fea43f8352cdda0a2abf29cd435c16a82d256c9a;p=dealii.git

add functions begin and end


git-svn-id: https://svn.dealii.org/trunk@12779 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/base/include/base/vector_slice.h b/deal.II/base/include/base/vector_slice.h
index 72c241a820..8ce98cdbee 100644
--- a/deal.II/base/include/base/vector_slice.h
+++ b/deal.II/base/include/base/vector_slice.h
@@ -86,6 +86,27 @@ class VectorSlice
 				      * <tt>std::vector</tt>.
 				      */
     typename VECTOR::const_reference operator[] (unsigned int i) const;
+
+				     /**
+				      * STL conforming iterator function.
+				      */
+    typename VECTOR::iterator begin();
+    
+				     /**
+				      * STL conforming iterator function.
+				      */
+    typename VECTOR::const_iterator begin() const;
+    
+				     /**
+				      * STL conforming iterator function.
+				      */
+    typename VECTOR::iterator end();
+    
+				     /**
+				      * STL conforming iterator function.
+				      */
+    typename VECTOR::const_iterator end() const;
+    
   private:
 				     /**
 				      * The vector we extract from.
@@ -191,4 +212,40 @@ VectorSlice<VECTOR>::operator[](unsigned int i) const
 }
 
 
+template <class VECTOR>
+inline
+typename VECTOR::const_iterator
+VectorSlice<VECTOR>::begin() const
+{
+  return v.begin()+start;
+}
+
+
+template <class VECTOR>
+inline
+typename VECTOR::iterator
+VectorSlice<VECTOR>::begin()
+{
+  return v.begin()+start;
+}
+
+
+template <class VECTOR>
+inline
+typename VECTOR::const_iterator
+VectorSlice<VECTOR>::end() const
+{
+  return v.begin()+start+length;
+}
+
+
+template <class VECTOR>
+inline
+typename VECTOR::iterator
+VectorSlice<VECTOR>::end()
+{
+  return v.begin()+start+length;
+}
+
+
 #endif