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diff --git a/deps/v8/src/fixed-dtoa.h b/deps/v8/src/fixed-dtoa.h
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-// Copyright 2010 the V8 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.
-
-#ifndef V8_FIXED_DTOA_H_
-#define V8_FIXED_DTOA_H_
-
-#include "src/vector.h"
-
-namespace v8 {
-namespace internal {
-
-// Produces digits necessary to print a given number with
-// 'fractional_count' digits after the decimal point.
-// The buffer must be big enough to hold the result plus one terminating null
-// character.
-//
-// The produced digits might be too short in which case the caller has to fill
-// the gaps with '0's.
-// Example: FastFixedDtoa(0.001, 5, ...) is allowed to return buffer = "1", and
-// decimal_point = -2.
-// Halfway cases are rounded towards +/-Infinity (away from 0). The call
-// FastFixedDtoa(0.15, 2, ...) thus returns buffer = "2", decimal_point = 0.
-// The returned buffer may contain digits that would be truncated from the
-// shortest representation of the input.
-//
-// This method only works for some parameters. If it can't handle the input it
-// returns false. The output is null-terminated when the function succeeds.
-V8_EXPORT_PRIVATE bool FastFixedDtoa(double v, int fractional_count,
- Vector<char> buffer, int* length,
- int* decimal_point);
-
-} // namespace internal
-} // namespace v8
-
-#endif // V8_FIXED_DTOA_H_