From 4bfcee47b92eec06cf099fd0beaffa72897d104b Mon Sep 17 00:00:00 2001
From: Jens Wehner <jenswehner@gmail.com>
Date: Sat, 27 Feb 2021 12:09:33 +0000
Subject: Idrs iterative linear solver

---
 unsupported/test/CMakeLists.txt |  1 +
 unsupported/test/idrs.cpp       | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 unsupported/test/idrs.cpp

(limited to 'unsupported/test')

diff --git a/unsupported/test/CMakeLists.txt b/unsupported/test/CMakeLists.txt
index 15c21098a..181919361 100644
--- a/unsupported/test/CMakeLists.txt
+++ b/unsupported/test/CMakeLists.txt
@@ -104,6 +104,7 @@ ei_add_test(splines)
 ei_add_test(gmres)
 ei_add_test(dgmres)
 ei_add_test(minres)
+ei_add_test(idrs)
 ei_add_test(levenberg_marquardt)
 ei_add_test(kronecker_product)
 ei_add_test(bessel_functions)
diff --git a/unsupported/test/idrs.cpp b/unsupported/test/idrs.cpp
new file mode 100644
index 000000000..f88c01632
--- /dev/null
+++ b/unsupported/test/idrs.cpp
@@ -0,0 +1,27 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2011 Gael Guennebaud <g.gael@free.fr>
+// Copyright (C) 2012 Kolja Brix <brix@igpm.rwth-aaachen.de>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#include "../../test/sparse_solver.h"
+#include <Eigen/IterativeSolvers>
+
+template<typename T> void test_idrs_T()
+{
+  IDRS<SparseMatrix<T>, DiagonalPreconditioner<T> > idrs_colmajor_diag;
+  IDRS<SparseMatrix<T>, IncompleteLUT<T> >           idrs_colmajor_ilut;
+
+  CALL_SUBTEST( check_sparse_square_solving(idrs_colmajor_diag)  );
+  CALL_SUBTEST( check_sparse_square_solving(idrs_colmajor_ilut)     );
+}
+
+EIGEN_DECLARE_TEST(idrs)
+{
+  CALL_SUBTEST_1(test_idrs_T<double>());
+  CALL_SUBTEST_2(test_idrs_T<std::complex<double> >());
+}
-- 
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