From b0de7ab7db06748f470cde7acc7e08062af03243 Mon Sep 17 00:00:00 2001
From: Peter Boyle <paboyle@ph.ed.ac.uk>
Date: Tue, 23 Apr 2019 21:50:45 +0100
Subject: [PATCH] Extra do nothing guesser

---
 Grid/algorithms/iterative/Deflation.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Grid/algorithms/iterative/Deflation.h b/Grid/algorithms/iterative/Deflation.h
index ceba1c09..8df67b3c 100644
--- a/Grid/algorithms/iterative/Deflation.h
+++ b/Grid/algorithms/iterative/Deflation.h
@@ -35,7 +35,11 @@ class ZeroGuesser: public LinearFunction<Field> {
 public:
   virtual void operator()(const Field &src, Field &guess) { guess = zero; };
 };
-
+template<class Field>
+class DoNothingGuesser: public LinearFunction<Field> {
+public:
+  virtual void operator()(const Field &src, Field &guess) {  };
+};
 template<class Field>
 class SourceGuesser: public LinearFunction<Field> {
 public: