Move files in wtf/ to platform/wtf/ (Part 9).

third_party/WebKit/Source/wtf/dtoa/fast-dtoa.h

-// Copyright 2010 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * 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.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// 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 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.
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
-#ifndef DOUBLE_CONVERSION_FAST_DTOA_H_
-#define DOUBLE_CONVERSION_FAST_DTOA_H_
+#include "platform/wtf/dtoa/fast-dtoa.h"
 
-#include "utils.h"
-
-namespace WTF {
-
-namespace double_conversion {
-
-enum FastDtoaMode {
-  // Computes the shortest representation of the given input. The returned
-  // result will be the most accurate number of this length. Longer
-  // representations might be more accurate.
-  FAST_DTOA_SHORTEST,
-  // Computes a representation where the precision (number of digits) is
-  // given as input. The precision is independent of the decimal point.
-  FAST_DTOA_PRECISION
-};
-
-// FastDtoa will produce at most kFastDtoaMaximalLength digits. This does not
-// include the terminating '\0' character.
-static const int kFastDtoaMaximalLength = 17;
-
-// Provides a decimal representation of v.
-// The result should be interpreted as buffer * 10^(point - length).
-//
-// Precondition:
-//   * v must be a strictly positive finite double.
-//
-// Returns true if it succeeds, otherwise the result can not be trusted.
-// There will be *length digits inside the buffer followed by a null terminator.
-// If the function returns true and mode equals
-//   - FAST_DTOA_SHORTEST, then
-//     the parameter requested_digits is ignored.
-//     The result satisfies
-//         v == (double) (buffer * 10^(point - length)).
-//     The digits in the buffer are the shortest representation possible. E.g.
-//     if 0.099999999999 and 0.1 represent the same double then "1" is returned
-//     with point = 0.
-//     The last digit will be closest to the actual v. That is, even if several
-//     digits might correctly yield 'v' when read again, the buffer will contain
-//     the one closest to v.
-//   - FAST_DTOA_PRECISION, then
-//     the buffer contains requested_digits digits.
-//     the difference v - (buffer * 10^(point-length)) is closest to zero for
-//     all possible representations of requested_digits digits.
-//     If there are two values that are equally close, then FastDtoa returns
-//     false.
-// For both modes the buffer must be large enough to hold the result.
-bool FastDtoa(double d,
-              FastDtoaMode mode,
-              int requested_digits,
-              Vector<char> buffer,
-              int* length,
-              int* decimal_point);
-
-}  // namespace double_conversion
-
-}  // namespace WTF
-
-#endif  // DOUBLE_CONVERSION_FAST_DTOA_H_
+// The contents of this header was moved to platform/wtf as part of
+// WTF migration project. See the following post for details:
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gYCAAJ