unplugged-system/external/rappor/client/cpp/libc_rand_impl.h

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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// A RAPPOR random implementation using libc's rand().
//
// IMPORTANT: This is for demo /simulation purposes only. Use a better random
// function in production applications.
#ifndef LIBC_RAND_IMPL_H_
#define LIBC_RAND_IMPL_H_
#include "rappor_deps.h"
namespace rappor {
class LibcRand : public IrrRandInterface {
public:
virtual ~LibcRand() {}
virtual bool GetMask(float prob, int num_bits, Bits* mask_out) const;
};
} // namespace rappor
#endif // LIBC_RAND_IMPL_H_