0d97d53808
BUG= Review URL: https://codereview.webrtc.org/1412183002 Cr-Commit-Position: refs/heads/master@{#10328}
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_TEST_RANDOM_H_
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#define WEBRTC_TEST_RANDOM_H_
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#include "webrtc/typedefs.h"
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#include "webrtc/base/constructormagic.h"
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namespace webrtc {
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namespace test {
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class Random {
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public:
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explicit Random(uint32_t seed);
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// Return pseudo-random number in the interval [0.0, 1.0).
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float Rand();
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// Return pseudo-random number mapped to the interval [low, high].
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int Rand(int low, int high);
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// Normal Distribution.
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int Gaussian(int mean, int standard_deviation);
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// Exponential Distribution.
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int Exponential(float lambda);
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// TODO(solenberg): Random from histogram.
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// template<typename T> int Distribution(const std::vector<T> histogram) {
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private:
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uint32_t a_;
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uint32_t b_;
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(Random);
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};
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} // namespace test
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} // namespace webrtc
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#endif // WEBRTC_TEST_RANDOM_H_
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