From 38259f43bfe007db7c85a88885de75a6d4ef8d68 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Atgeirr=20Fl=C3=B8=20Rasmussen?= <atgeirr@sintef.no>
Date: Wed, 15 May 2013 08:48:36 +0200
Subject: [PATCH] Added size() member for ease of use.

This makes it easier to write for example templated code
acting on either AD vectors or non-ad vectors.
---
 AutoDiffBlock.hpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/AutoDiffBlock.hpp b/AutoDiffBlock.hpp
index c1357b2cd..18641b664 100644
--- a/AutoDiffBlock.hpp
+++ b/AutoDiffBlock.hpp
@@ -173,7 +173,13 @@ namespace AutoDiff
             return os;
         }
 
-        /// Number of variables or Jacobian blocks.
+        /// Number of elements
+        int size() const
+        {
+            return val_.size();
+        }
+
+        /// Number of Jacobian blocks.
         int numBlocks() const
         {
             return jac_.size();