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test_goodies.hh
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rMUSPECTRE µSpectre
test_goodies.hh
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/**
* file test_goodies.hh
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 27 Sep 2017
*
* @brief helpers for testing
*
* @section LICENCE
*
* Copyright (C) 2017 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <random>
#include <type_traits>
#ifndef TEST_GOODIES_H
#define TEST_GOODIES_H
namespace
muSpectre
{
namespace
testGoodies
{
template
<
typename
T
>
class
RandRange
{
public
:
RandRange
()
:
rd
(),
gen
(
rd
())
{}
template
<
typename
dummyT
=
T
>
std
::
enable_if_t
<
std
::
is_floating_point
<
dummyT
>::
value
,
dummyT
>
randval
(
T
&&
lower
,
T
&&
upper
)
{
static_assert
(
std
::
is_same
<
T
,
dummyT
>::
value
);
auto
distro
=
std
::
uniform_real_distribution
<
T
>
(
lower
,
upper
);
return
distro
(
this
->
gen
);
}
template
<
typename
dummyT
=
T
>
std
::
enable_if_t
<
std
::
is_integral
<
dummyT
>::
value
,
dummyT
>
randval
(
T
&&
lower
,
T
&&
upper
)
{
static_assert
(
std
::
is_same
<
T
,
dummyT
>::
value
);
auto
distro
=
std
::
uniform_int_distribution
<
T
>
(
lower
,
upper
);
return
distro
(
this
->
gen
);
}
private
:
std
::
random_device
rd
;
std
::
default_random_engine
gen
;
};
}
// testGoodies
}
// muSpectre
#endif
/* TEST_GOODIES_H */
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