Abseil Common Libraries (C++) (grcp 依赖)
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46 lines
1.8 KiB
46 lines
1.8 KiB
// Copyright 2017 The Abseil Authors. |
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// |
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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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// |
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// https://www.apache.org/licenses/LICENSE-2.0 |
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// |
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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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#ifndef ABSL_RANDOM_INTERNAL_RANDEN_HWAES_H_ |
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#define ABSL_RANDOM_INTERNAL_RANDEN_HWAES_H_ |
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// HERMETIC NOTE: The randen_hwaes target must not introduce duplicate |
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// symbols from arbitrary system and other headers, since it may be built |
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// with different flags from other targets, using different levels of |
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// optimization, potentially introducing ODR violations. |
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namespace absl { |
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namespace random_internal { |
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// RANDen = RANDom generator or beetroots in Swiss German. |
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// 'Strong' (well-distributed, unpredictable, backtracking-resistant) random |
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// generator, faster in some benchmarks than std::mt19937_64 and pcg64_c32. |
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// |
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// RandenHwAes implements the basic state manipulation methods. |
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class RandenHwAes { |
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public: |
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static void Generate(const void* keys, void* state_void); |
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static void Absorb(const void* seed_void, void* state_void); |
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static const void* GetKeys(); |
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}; |
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// HasRandenHwAesImplementation returns true when there is an accelerated |
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// implementation, and false otherwise. If there is no implementation, |
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// then attempting to use it will abort the program. |
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bool HasRandenHwAesImplementation(); |
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} // namespace random_internal |
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} // namespace absl |
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#endif // ABSL_RANDOM_INTERNAL_RANDEN_FAST_H_
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