diff options
author | Gael Guennebaud <g.gael@free.fr> | 2019-01-17 18:27:25 +0100 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2019-01-17 18:27:25 +0100 |
commit | 0fe6b7d687430fd1fe2d390da2f09fcb8ddc8093 (patch) | |
tree | 4d0aeef4a8a573f05bb61c284e5a48cca16bd473 /test/nestbyvalue.cpp | |
parent | 4b7cf7ff82a5bfa252dd2e00b449073272482d65 (diff) |
Make nestByValue works again (broken since 3.3) and add unit tests.
Diffstat (limited to 'test/nestbyvalue.cpp')
-rw-r--r-- | test/nestbyvalue.cpp | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/nestbyvalue.cpp b/test/nestbyvalue.cpp new file mode 100644 index 000000000..c5356bc24 --- /dev/null +++ b/test/nestbyvalue.cpp @@ -0,0 +1,37 @@ +// This file is part of Eigen, a lightweight C++ template library +// for linear algebra. +// +// Copyright (C) 2019 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/. + +#define TEST_ENABLE_TEMPORARY_TRACKING + +#include "main.h" + +typedef NestByValue<MatrixXd> CpyMatrixXd; +typedef CwiseBinaryOp<internal::scalar_sum_op<double,double>,const CpyMatrixXd,const CpyMatrixXd> XprType; + +XprType get_xpr_with_temps(const MatrixXd& a) +{ + MatrixXd t1 = a.rowwise().reverse(); + MatrixXd t2 = a+a; + return t1.nestByValue() + t2.nestByValue(); +} + +EIGEN_DECLARE_TEST(nestbyvalue) +{ + for(int i = 0; i < g_repeat; i++) { + Index rows = internal::random<Index>(1,EIGEN_TEST_MAX_SIZE); + Index cols = internal::random<Index>(1,EIGEN_TEST_MAX_SIZE); + MatrixXd a = MatrixXd(rows,cols); + nb_temporaries = 0; + XprType x = get_xpr_with_temps(a); + VERIFY_IS_EQUAL(nb_temporaries,6); + MatrixXd b = x; + VERIFY_IS_EQUAL(nb_temporaries,6+1); + VERIFY_IS_APPROX(b, a.rowwise().reverse().eval() + (a+a).eval()); + } +} |