From a486d5590a7532b698db07eaeba8c402bbf9fd6f Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 1 Feb 2011 15:49:10 +0100
Subject: implement optimized path for selfadjoint rank 1 update (safe
 regarding dynamic alloc)

---
 test/product_syrk.cpp | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'test/product_syrk.cpp')

diff --git a/test/product_syrk.cpp b/test/product_syrk.cpp
index 951a254ed..553410b9b 100644
--- a/test/product_syrk.cpp
+++ b/test/product_syrk.cpp
@@ -44,6 +44,8 @@ template<typename MatrixType> void syrk(const MatrixType& m)
   Rhs3 rhs3 = Rhs3::Random(internal::random<int>(1,320), rows);
 
   Scalar s1 = internal::random<Scalar>();
+  
+  Index c = internal::random<Index>(0,cols-1);
 
   m2.setZero();
   VERIFY_IS_APPROX((m2.template selfadjointView<Lower>().rankUpdate(rhs2,s1)._expression()),
@@ -68,6 +70,30 @@ template<typename MatrixType> void syrk(const MatrixType& m)
   m2.setZero();
   VERIFY_IS_APPROX(m2.template selfadjointView<Upper>().rankUpdate(rhs3.adjoint(),s1)._expression(),
                    (s1 * rhs3.adjoint() * rhs3).eval().template triangularView<Upper>().toDenseMatrix());
+                   
+  m2.setZero();
+  VERIFY_IS_APPROX((m2.template selfadjointView<Lower>().rankUpdate(m1.col(c),s1)._expression()),
+                   ((s1 * m1.col(c) * m1.col(c).adjoint()).eval().template triangularView<Lower>().toDenseMatrix()));
+                   
+  m2.setZero();
+  VERIFY_IS_APPROX((m2.template selfadjointView<Upper>().rankUpdate(m1.col(c),s1)._expression()),
+                   ((s1 * m1.col(c) * m1.col(c).adjoint()).eval().template triangularView<Upper>().toDenseMatrix()));
+  
+  m2.setZero();
+  VERIFY_IS_APPROX((m2.template selfadjointView<Lower>().rankUpdate(m1.col(c).conjugate(),s1)._expression()),
+                   ((s1 * m1.col(c).conjugate() * m1.col(c).conjugate().adjoint()).eval().template triangularView<Lower>().toDenseMatrix()));
+                   
+  m2.setZero();
+  VERIFY_IS_APPROX((m2.template selfadjointView<Upper>().rankUpdate(m1.col(c).conjugate(),s1)._expression()),
+                   ((s1 * m1.col(c).conjugate() * m1.col(c).conjugate().adjoint()).eval().template triangularView<Upper>().toDenseMatrix()));
+  
+  m2.setZero();
+  VERIFY_IS_APPROX((m2.template selfadjointView<Lower>().rankUpdate(m1.row(c),s1)._expression()),
+                   ((s1 * m1.row(c).transpose() * m1.row(c).transpose().adjoint()).eval().template triangularView<Lower>().toDenseMatrix()));
+  
+  m2.setZero();
+  VERIFY_IS_APPROX((m2.template selfadjointView<Upper>().rankUpdate(m1.row(c).adjoint(),s1)._expression()),
+                   ((s1 * m1.row(c).adjoint() * m1.row(c).adjoint().adjoint()).eval().template triangularView<Upper>().toDenseMatrix()));
 }
 
 void test_product_syrk()
-- 
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