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// Copyright 2005-2009 The RE2 Authors. All Rights Reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef UTIL_RANDOM_H_
#define UTIL_RANDOM_H_
// Modified from Google perftools's tcmalloc_unittest.cc.
#include "util/util.h"
namespace re2 {
// ACM minimal standard random number generator. (re-entrant.)
class ACMRandom {
public:
ACMRandom(int32 seed) : seed_(seed) {}
int32 Next();
int32 Uniform(int32);
void Reset(int32 seed) { seed_ = seed; }
private:
int32 seed_;
};
} // namespace re2
#endif // UTIL_RANDOM_H_
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