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diff --git a/Source/JavaScriptCore/wtf/dtoa.h b/Source/JavaScriptCore/wtf/dtoa.h
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+++ b/Source/JavaScriptCore/wtf/dtoa.h
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+/*
+ *  Copyright (C) 2003, 2008 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef WTF_dtoa_h
+#define WTF_dtoa_h
+
+#include <wtf/dtoa/double-conversion.h>
+#include <wtf/unicode/Unicode.h>
+
+namespace WTF {
+class Mutex;
+
+extern WTF::Mutex* s_dtoaP5Mutex;
+
+typedef char DtoaBuffer[80];
+
+void dtoa(DtoaBuffer result, double dd, bool& sign, int& exponent, unsigned& precision);
+void dtoaRoundSF(DtoaBuffer result, double dd, int ndigits, bool& sign, int& exponent, unsigned& precision);
+void dtoaRoundDP(DtoaBuffer result, double dd, int ndigits, bool& sign, int& exponent, unsigned& precision);
+
+// s00: input string. Must not be 0 and must be terminated by 0.
+// se: *se will have the last consumed character position + 1.
+double strtod(const char* s00, char** se);
+
+// Size = 80 for sizeof(DtoaBuffer) + some sign bits, decimal point, 'e', exponent digits.
+const unsigned NumberToStringBufferLength = 96;
+typedef char NumberToStringBuffer[NumberToStringBufferLength];
+typedef UChar NumberToUStringBuffer[NumberToStringBufferLength];
+const char* numberToString(double, NumberToStringBuffer);
+const char* numberToFixedPrecisionString(double, unsigned significantFigures, NumberToStringBuffer, bool truncateTrailingZeros = false);
+const char* numberToFixedWidthString(double, unsigned decimalPlaces, NumberToStringBuffer);
+
+} // namespace WTF
+
+using WTF::NumberToStringBuffer;
+using WTF::NumberToUStringBuffer;
+using WTF::numberToString;
+using WTF::numberToFixedPrecisionString;
+using WTF::numberToFixedWidthString;
+
+#endif // WTF_dtoa_h