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+//
+// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// random_utils:
+// Helper functions for random number generation.
+//
+
+#ifndef UTIL_RANDOM_UTILS_H
+#define UTIL_RANDOM_UTILS_H
+
+// TODO(jmadill): Rework this if Chromium decides to ban <random>
+#include <random>
+
+#include <export.h>
+
+namespace angle
+{
+
+class ANGLE_EXPORT RNG
+{
+ public:
+ // Seed from clock
+ RNG();
+ // Seed from fixed number.
+ RNG(unsigned int seed);
+ ~RNG();
+
+ void reseed(unsigned int newSeed);
+
+ int randomInt();
+ int randomIntBetween(int min, int max);
+ unsigned int randomUInt();
+ float randomFloat();
+ float randomFloatBetween(float min, float max);
+ float randomNegativeOneToOne();
+
+ private:
+ std::default_random_engine mGenerator;
+};
+
+} // namespace angle
+
+#endif // UTIL_RANDOM_UTILS_H