From 55b4fd1d401440d51bf5bc663385a48e4981ff66 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Sat, 5 Nov 2016 11:28:53 +0100
Subject: Extend mpreal unit test to check LLT with complexes.

---
 unsupported/test/mpreal_support.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'unsupported/test/mpreal_support.cpp')

diff --git a/unsupported/test/mpreal_support.cpp b/unsupported/test/mpreal_support.cpp
index ffa5691eb..685e7ea45 100644
--- a/unsupported/test/mpreal_support.cpp
+++ b/unsupported/test/mpreal_support.cpp
@@ -12,6 +12,7 @@ void test_mpreal_support()
   // set precision to 256 bits (double has only 53 bits)
   mpreal::set_default_prec(256);
   typedef Matrix<mpreal,Eigen::Dynamic,Eigen::Dynamic> MatrixXmp;
+  typedef Matrix<std::complex<mpreal>,Eigen::Dynamic,Eigen::Dynamic> MatrixXcmp;
 
   std::cerr << "epsilon =         " << NumTraits<mpreal>::epsilon() << "\n";
   std::cerr << "dummy_precision = " << NumTraits<mpreal>::dummy_precision() << "\n";
@@ -25,6 +26,10 @@ void test_mpreal_support()
     MatrixXmp B = MatrixXmp::Random(s,s);
     MatrixXmp S = A.adjoint() * A;
     MatrixXmp X;
+    MatrixXcmp Ac = MatrixXcmp::Random(s,s);
+    MatrixXcmp Bc = MatrixXcmp::Random(s,s);
+    MatrixXcmp Sc = Ac.adjoint() * Ac;
+    MatrixXcmp Xc;
     
     // Basic stuffs
     VERIFY_IS_APPROX(A.real(), A);
@@ -37,6 +42,9 @@ void test_mpreal_support()
     // Cholesky
     X = S.selfadjointView<Lower>().llt().solve(B);
     VERIFY_IS_APPROX((S.selfadjointView<Lower>()*X).eval(),B);
+
+    Xc = Sc.selfadjointView<Lower>().llt().solve(Bc);
+    VERIFY_IS_APPROX((Sc.selfadjointView<Lower>()*Xc).eval(),Bc);
     
     // partial LU
     X = A.lu().solve(B);
-- 
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