// Copyright (c) 2013, Peter Pettersson
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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#ifndef RANDOM_WELL512A_H
#define RANDOM_WELL512A_H

class RandomWELL512a
{
public:
	RandomWELL512a(int seed);
	RandomWELL512a(unsigned *seed);
	
	unsigned GetUnsigned();

	double GetDouble()
	{
		const double kToFloat = 2.32830643653869628906e-10;
		return GetUnsigned() * kToFloat;
	}

private:
	unsigned state[16];
	unsigned index;
};

#endif // RANDOM_WELL512A_H