| Index: Source/WTF/wtf/RandomNumber.cpp
|
| diff --git a/Source/WTF/wtf/RandomNumber.cpp b/Source/WTF/wtf/RandomNumber.cpp
|
| deleted file mode 100644
|
| index c0974f7350b490b65d93a37387a700a5f367b56e..0000000000000000000000000000000000000000
|
| --- a/Source/WTF/wtf/RandomNumber.cpp
|
| +++ /dev/null
|
| @@ -1,77 +0,0 @@
|
| -/*
|
| - * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
|
| - * (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
|
| - * Copyright (C) 2013 Andrew Bortz. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. OR
|
| - * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
| - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
| - * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
| - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
| - * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
| - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| - */
|
| -
|
| -#include "config.h"
|
| -#include "RandomNumber.h"
|
| -
|
| -#include "CryptographicallyRandomNumber.h"
|
| -#include "RandomNumberSeed.h"
|
| -
|
| -#include <limits>
|
| -#include <limits.h>
|
| -#include <stdint.h>
|
| -#include <stdlib.h>
|
| -
|
| -namespace WTF {
|
| -
|
| -#if !USE(OS_RANDOMNESS)
|
| -namespace Internal {
|
| -
|
| -static uint64_t state;
|
| -
|
| -void initializeRandomNumber(uint64_t seed)
|
| -{
|
| - state = seed;
|
| -}
|
| -
|
| -// This random number generator comes from: Klimov, A. and Shamir, A.,
|
| -// "A New Class of Invertible Mappings", Cryptographic Hardware and Embedded
|
| -// Systems 2002, http://dl.acm.org/citation.cfm?id=752741
|
| -//
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| -// Very fast, very simple, and passes Diehard and other good statistical
|
| -// tests as strongly as cryptographically-secure random number generators (but
|
| -// is not itself cryptographically-secure).
|
| -uint32_t randomNumber()
|
| -{
|
| - state += (state * state) | 5;
|
| - return static_cast<uint32_t>(state >> 32);
|
| -}
|
| -
|
| -}
|
| -#endif
|
| -
|
| -double randomNumber()
|
| -{
|
| -#if USE(OS_RANDOMNESS)
|
| - uint32_t bits = cryptographicallyRandomNumber();
|
| -#else
|
| - uint32_t bits = Internal::randomNumber();
|
| -#endif
|
| - return static_cast<double>(bits) / (static_cast<double>(std::numeric_limits<uint32_t>::max()) + 1.0);
|
| -}
|
| -
|
| -}
|
|
|