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test_goodies.hh
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Thu, Jul 11, 11:39

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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