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30 lines
622 B
C++
30 lines
622 B
C++
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// Copyright 2005-2009 The RE2 Authors. All Rights Reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Modified from Google perftools's tcmalloc_unittest.cc.
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#ifndef RE2_UTIL_RANDOM_H__
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#define RE2_UTIL_RANDOM_H__
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#include "util/util.h"
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namespace re2 {
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// ACM minimal standard random number generator. (re-entrant.)
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class ACMRandom {
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public:
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ACMRandom(int32 seed) : seed_(seed) {}
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int32 Next();
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int32 Uniform(int32);
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void Reset(int32 seed) { seed_ = seed; }
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private:
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int32 seed_;
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};
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} // namespace re2
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#endif // RE2_UTIL_RANDOM_H__
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