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randen_slow.h 1.4 kB

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  1. // Copyright 2017 The Abseil Authors.
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the "License");
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. // https://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an "AS IS" BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. // See the License for the specific language governing permissions and
  13. // limitations under the License.
  14. #ifndef ABSL_RANDOM_INTERNAL_RANDEN_SLOW_H_
  15. #define ABSL_RANDOM_INTERNAL_RANDEN_SLOW_H_
  16. #include <cstddef>
  17. #include "absl/base/config.h"
  18. namespace absl
  19. {
  20. ABSL_NAMESPACE_BEGIN
  21. namespace random_internal
  22. {
  23. // RANDen = RANDom generator or beetroots in Swiss High German.
  24. // RandenSlow implements the basic state manipulation methods for
  25. // architectures lacking AES hardware acceleration intrinsics.
  26. class RandenSlow
  27. {
  28. public:
  29. static void Generate(const void* keys, void* state_void);
  30. static void Absorb(const void* seed_void, void* state_void);
  31. static const void* GetKeys();
  32. };
  33. } // namespace random_internal
  34. ABSL_NAMESPACE_END
  35. } // namespace absl
  36. #endif // ABSL_RANDOM_INTERNAL_RANDEN_SLOW_H_