2 files changed, 8 insertions, 0 deletions
diff --git a/src/image.cc b/src/image.cc
index 15f1e589..15ff24dc 100644
--- a/src/image.cc
+++ b/src/image.cc
@@ -39,3 +39,9 @@ Image::Image (boost::shared_ptr<const Image> other)
 {
 
 }
+
+void
+Image::swap (Image& other)
+{
+	std::swap (_size, other._size);
+}
diff --git a/src/image.h b/src/image.h
index 9e85101a..81458021 100644
--- a/src/image.h
+++ b/src/image.h
@@ -38,6 +38,8 @@ public:
 	}
 
 protected:
+	void swap (Image& other);
+	
 	Size _size;
 };