1 files changed, 93 insertions, 0 deletions
diff --git a/eigen/test/product_trsolve.cpp b/eigen/test/product_trsolve.cpp
new file mode 100644
index 0000000..69892b3
--- /dev/null
+++ b/eigen/test/product_trsolve.cpp
@@ -0,0 +1,93 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// 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 "main.h"
+
+#define VERIFY_TRSM(TRI,XB) { \
+    (XB).setRandom(); ref = (XB); \
+    (TRI).solveInPlace(XB); \
+    VERIFY_IS_APPROX((TRI).toDenseMatrix() * (XB), ref); \
+    (XB).setRandom(); ref = (XB); \
+    (XB) = (TRI).solve(XB); \
+    VERIFY_IS_APPROX((TRI).toDenseMatrix() * (XB), ref); \
+  }
+
+#define VERIFY_TRSM_ONTHERIGHT(TRI,XB) { \
+    (XB).setRandom(); ref = (XB); \
+    (TRI).transpose().template solveInPlace<OnTheRight>(XB.transpose()); \
+    VERIFY_IS_APPROX((XB).transpose() * (TRI).transpose().toDenseMatrix(), ref.transpose()); \
+    (XB).setRandom(); ref = (XB); \
+    (XB).transpose() = (TRI).transpose().template solve<OnTheRight>(XB.transpose()); \
+    VERIFY_IS_APPROX((XB).transpose() * (TRI).transpose().toDenseMatrix(), ref.transpose()); \
+  }
+
+template<typename Scalar,int Size, int Cols> void trsolve(int size=Size,int cols=Cols)
+{
+  typedef typename NumTraits<Scalar>::Real RealScalar;
+
+  Matrix<Scalar,Size,Size,ColMajor> cmLhs(size,size);
+  Matrix<Scalar,Size,Size,RowMajor> rmLhs(size,size);
+
+  enum {  colmajor = Size==1 ? RowMajor : ColMajor,
+          rowmajor = Cols==1 ? ColMajor : RowMajor };
+  Matrix<Scalar,Size,Cols,colmajor> cmRhs(size,cols);
+  Matrix<Scalar,Size,Cols,rowmajor> rmRhs(size,cols);
+  Matrix<Scalar,Dynamic,Dynamic,colmajor> ref(size,cols);
+
+  cmLhs.setRandom(); cmLhs *= static_cast<RealScalar>(0.1); cmLhs.diagonal().array() += static_cast<RealScalar>(1);
+  rmLhs.setRandom(); rmLhs *= static_cast<RealScalar>(0.1); rmLhs.diagonal().array() += static_cast<RealScalar>(1);
+
+  VERIFY_TRSM(cmLhs.conjugate().template triangularView<Lower>(), cmRhs);
+  VERIFY_TRSM(cmLhs.adjoint()  .template triangularView<Lower>(), cmRhs);
+  VERIFY_TRSM(cmLhs            .template triangularView<Upper>(), cmRhs);
+  VERIFY_TRSM(cmLhs            .template triangularView<Lower>(), rmRhs);
+  VERIFY_TRSM(cmLhs.conjugate().template triangularView<Upper>(), rmRhs);
+  VERIFY_TRSM(cmLhs.adjoint()  .template triangularView<Upper>(), rmRhs);
+
+  VERIFY_TRSM(cmLhs.conjugate().template triangularView<UnitLower>(), cmRhs);
+  VERIFY_TRSM(cmLhs            .template triangularView<UnitUpper>(), rmRhs);
+
+  VERIFY_TRSM(rmLhs            .template triangularView<Lower>(), cmRhs);
+  VERIFY_TRSM(rmLhs.conjugate().template triangularView<UnitUpper>(), rmRhs);
+
+
+  VERIFY_TRSM_ONTHERIGHT(cmLhs.conjugate().template triangularView<Lower>(), cmRhs);
+  VERIFY_TRSM_ONTHERIGHT(cmLhs            .template triangularView<Upper>(), cmRhs);
+  VERIFY_TRSM_ONTHERIGHT(cmLhs            .template triangularView<Lower>(), rmRhs);
+  VERIFY_TRSM_ONTHERIGHT(cmLhs.conjugate().template triangularView<Upper>(), rmRhs);
+
+  VERIFY_TRSM_ONTHERIGHT(cmLhs.conjugate().template triangularView<UnitLower>(), cmRhs);
+  VERIFY_TRSM_ONTHERIGHT(cmLhs            .template triangularView<UnitUpper>(), rmRhs);
+
+  VERIFY_TRSM_ONTHERIGHT(rmLhs            .template triangularView<Lower>(), cmRhs);
+  VERIFY_TRSM_ONTHERIGHT(rmLhs.conjugate().template triangularView<UnitUpper>(), rmRhs);
+
+  int c = internal::random<int>(0,cols-1);
+  VERIFY_TRSM(rmLhs.template triangularView<Lower>(), rmRhs.col(c));
+  VERIFY_TRSM(cmLhs.template triangularView<Lower>(), rmRhs.col(c));
+}
+
+void test_product_trsolve()
+{
+  for(int i = 0; i < g_repeat ; i++)
+  {
+    // matrices
+    CALL_SUBTEST_1((trsolve<float,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE),internal::random<int>(1,EIGEN_TEST_MAX_SIZE))));
+    CALL_SUBTEST_2((trsolve<double,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE),internal::random<int>(1,EIGEN_TEST_MAX_SIZE))));
+    CALL_SUBTEST_3((trsolve<std::complex<float>,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2),internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))));
+    CALL_SUBTEST_4((trsolve<std::complex<double>,Dynamic,Dynamic>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2),internal::random<int>(1,EIGEN_TEST_MAX_SIZE/2))));
+
+    // vectors
+    CALL_SUBTEST_1((trsolve<float,Dynamic,1>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE))));
+    CALL_SUBTEST_5((trsolve<std::complex<double>,Dynamic,1>(internal::random<int>(1,EIGEN_TEST_MAX_SIZE))));
+    CALL_SUBTEST_6((trsolve<float,1,1>()));
+    CALL_SUBTEST_7((trsolve<float,1,2>()));
+    CALL_SUBTEST_8((trsolve<std::complex<float>,4,1>()));
+  }
+}