gtsam
3rdparty
Eigen
test
nestbyvalue.cpp
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// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2019 Gael Guennebaud <gael.guennebaud@inria.fr>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#define TEST_ENABLE_TEMPORARY_TRACKING
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#include "
main.h
"
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typedef
NestByValue<MatrixXd>
CpyMatrixXd
;
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typedef
CwiseBinaryOp<internal::scalar_sum_op<double,double>
,
const
CpyMatrixXd
,
const
CpyMatrixXd
>
XprType
;
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XprType
get_xpr_with_temps
(
const
MatrixXd&
a
)
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{
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MatrixXd t1 =
a
.rowwise().reverse();
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MatrixXd t2 =
a
+
a
;
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return
t1.nestByValue() + t2.nestByValue();
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}
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EIGEN_DECLARE_TEST
(nestbyvalue)
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{
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for
(
int
i
= 0;
i
<
g_repeat
;
i
++) {
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Index
rows
= internal::random<Index>(1,
EIGEN_TEST_MAX_SIZE
);
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Index
cols
= internal::random<Index>(1,
EIGEN_TEST_MAX_SIZE
);
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MatrixXd
a
= MatrixXd(
rows
,
cols
);
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nb_temporaries
= 0;
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XprType
x
=
get_xpr_with_temps
(
a
);
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VERIFY_IS_EQUAL
(
nb_temporaries
,6);
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MatrixXd
b
=
x
;
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VERIFY_IS_EQUAL
(
nb_temporaries
,6+1);
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VERIFY_IS_APPROX
(
b
,
a
.rowwise().reverse().eval() + (
a
+
a
).eval());
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}
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}
Eigen::CwiseBinaryOp
Generic expression where a coefficient-wise binary operator is applied to two expressions.
Definition:
CwiseBinaryOp.h:77
VERIFY_IS_EQUAL
#define VERIFY_IS_EQUAL(a, b)
Definition:
main.h:386
b
Scalar * b
Definition:
benchVecAdd.cpp:17
x
set noclip points set clip one set noclip two set bar set border lt lw set xdata set ydata set zdata set x2data set y2data set boxwidth set dummy x
Definition:
gnuplot_common_settings.hh:12
CpyMatrixXd
NestByValue< MatrixXd > CpyMatrixXd
Definition:
nestbyvalue.cpp:14
EIGEN_DECLARE_TEST
EIGEN_DECLARE_TEST(nestbyvalue)
Definition:
nestbyvalue.cpp:24
rows
int rows
Definition:
Tutorial_commainit_02.cpp:1
nb_temporaries
static long int nb_temporaries
Definition:
test/sparse_product.cpp:16
get_xpr_with_temps
XprType get_xpr_with_temps(const MatrixXd &a)
Definition:
nestbyvalue.cpp:17
Eigen::g_repeat
static int g_repeat
Definition:
main.h:169
XprType
CwiseBinaryOp< internal::scalar_sum_op< double, double >, const CpyMatrixXd, const CpyMatrixXd > XprType
Definition:
nestbyvalue.cpp:15
VERIFY_IS_APPROX
#define VERIFY_IS_APPROX(a, b)
Definition:
integer_types.cpp:15
a
ArrayXXi a
Definition:
Array_initializer_list_23_cxx11.cpp:1
main.h
EIGEN_TEST_MAX_SIZE
#define EIGEN_TEST_MAX_SIZE
Definition:
boostmultiprec.cpp:16
Eigen::NestByValue
Expression which must be nested by value.
Definition:
NestByValue.h:38
cols
int cols
Definition:
Tutorial_commainit_02.cpp:1
i
int i
Definition:
BiCGSTAB_step_by_step.cpp:9
Eigen::Index
EIGEN_DEFAULT_DENSE_INDEX_TYPE Index
The Index type as used for the API.
Definition:
Meta.h:74
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autogenerated on Fri Nov 1 2024 03:33:49