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test.hh
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Created
Fri, May 10, 03:01
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text/x-c++
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Sun, May 12, 03:01 (1 d, 23 h)
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rTAMAAS tamaas
test.hh
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2021 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Tamaas is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Tamaas is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "fftw/interface.hh"
#include "tamaas.hh"
#include "gtest/gtest.h"
#include <algorithm>
#include <array>
#include <limits>
#include <numeric>
#include <thrust/complex.h>
#include <utility>
template
<
typename
T
,
typename
U
>
bool
compare
(
T
&&
a
,
U
&&
b
)
{
return
std
::
mismatch
(
std
::
begin
(
a
),
std
::
end
(
a
),
std
::
begin
(
b
))
==
std
::
make_pair
(
std
::
end
(
a
),
std
::
end
(
b
));
}
template
<
typename
T
,
typename
U
,
typename
Pred
>
bool
compare
(
T
&&
a
,
U
&&
b
,
Pred
&&
pred
)
{
return
std
::
mismatch
(
std
::
begin
(
a
),
std
::
end
(
a
),
std
::
begin
(
b
),
pred
)
==
std
::
make_pair
(
std
::
end
(
a
),
std
::
end
(
b
));
}
struct
AreFloatEqual
{
tamaas
::
Real
tolerance
=
4
*
std
::
numeric_limits
<
tamaas
::
Real
>::
epsilon
();
template
<
typename
T
,
typename
U
>
inline
bool
operator
()(
T
&&
x
,
U
&&
y
)
{
// T y = reinterpret_cast<T>(z);
tamaas
::
Real
abs_max
=
std
::
max
<
std
::
decay_t
<
T
>>
(
std
::
abs
(
x
),
std
::
abs
(
y
));
abs_max
=
std
::
max
(
abs_max
,
tamaas
::
Real
(
1.
));
return
std
::
abs
(
x
-
y
)
<=
(
tolerance
*
abs_max
);
}
};
struct
AreComplexEqual
{
tamaas
::
Real
tolerance
=
4
*
std
::
numeric_limits
<
tamaas
::
Real
>::
epsilon
();
#ifdef TAMAAS_USE_FFTW
inline
bool
operator
()(
const
tamaas
::
Complex
&
x
,
const
fftw
::
helper
<
tamaas
::
Real
>::
complex
&
y
)
{
auto
equal
=
AreFloatEqual
{
tolerance
};
return
equal
(
x
.
real
(),
y
[
0
])
&&
equal
(
x
.
imag
(),
y
[
1
]);
}
#endif
inline
bool
operator
()(
const
tamaas
::
Complex
&
x
,
const
tamaas
::
Complex
&
y
)
{
auto
equal
=
AreFloatEqual
{
tolerance
};
return
equal
(
x
.
real
(),
y
.
real
())
&&
equal
(
x
.
imag
(),
y
.
imag
());
}
};
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