From 669db3d7768b3b94d31d6552a1012ee29f54b8d8 Mon Sep 17 00:00:00 2001
From: Chen-Pang He <jdh8@ms63.hinet.net>
Date: Sun, 9 Sep 2012 02:55:10 +0800
Subject: Extend rank-1 updates for different storage orders.

---
 blas/GeneralRank1Update.h | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

(limited to 'blas/GeneralRank1Update.h')

diff --git a/blas/GeneralRank1Update.h b/blas/GeneralRank1Update.h
index a3301ed92..6d33fbcc1 100644
--- a/blas/GeneralRank1Update.h
+++ b/blas/GeneralRank1Update.h
@@ -13,15 +13,28 @@
 namespace internal {
 
 /* Optimized matrix += alpha * uv' */
-template<typename Scalar, typename Index, bool ConjRhs>
-struct general_rank1_update
+template<typename Scalar, typename Index, int StorageOrder, bool ConjLhs, bool ConjRhs>
+struct general_rank1_update;
+
+template<typename Scalar, typename Index, bool ConjLhs, bool ConjRhs>
+struct general_rank1_update<Scalar,Index,ColMajor,ConjLhs,ConjRhs>
 {
   static void run(Index rows, Index cols, Scalar* mat, Index stride, const Scalar* u, const Scalar* v, Scalar alpha)
   {
-    typedef Matrix<Scalar,Dynamic,1> PlainVector;
     internal::conj_if<ConjRhs> cj;
+    typedef Map<const Matrix<Scalar,Dynamic,1> > OtherMap;
+    typedef typename internal::conditional<ConjLhs,typename OtherMap::ConjugateReturnType,const OtherMap&>::type ConjRhsType;
     for (Index i=0; i<cols; ++i)
-      Map<PlainVector>(mat+stride*i,rows) += alpha * cj(v[i]) * Map<const PlainVector>(u,rows);
+      Map<Matrix<Scalar,Dynamic,1> >(mat+stride*i,rows) += alpha * cj(v[i]) * ConjRhsType(OtherMap(u,rows));
+  }
+};
+
+template<typename Scalar, typename Index, bool ConjLhs, bool ConjRhs>
+struct general_rank1_update<Scalar,Index,RowMajor,ConjLhs,ConjRhs>
+{
+  static void run(Index rows, Index cols, Scalar* mat, Index stride, const Scalar* u, const Scalar* v, Scalar alpha)
+  {
+    general_rank1_update<Scalar,Index,ColMajor,ConjRhs,ConjRhs>::run(rows,cols,mat,stride,u,v,alpha);
   }
 };
 
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