wehub-resource-sync
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include <random>
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#include <type_traits>
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namespace phi {
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namespace tests {
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template <typename T,
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typename =
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typename std::enable_if<std::is_arithmetic<T>::value>::type>
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class RandomGenerator {
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using distribution_type =
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typename std::conditional<std::is_integral<T>::value,
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std::uniform_int_distribution<T>,
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std::uniform_real_distribution<T>>::type;
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std::default_random_engine engine;
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distribution_type distribution;
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public:
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auto operator()() -> decltype(distribution(engine)) {
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return distribution(engine);
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}
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};
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template <typename Container, typename T = typename Container::value_type>
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auto make_generator(Container const&) -> decltype(RandomGenerator<T>()) {
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return RandomGenerator<T>();
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}
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} // namespace tests
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} // namespace phi
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