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// Copyright 2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_FAST_DTOA_H_
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#define V8_FAST_DTOA_H_
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namespace v8 {
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namespace internal {
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// FastDtoa will produce at most kFastDtoaMaximalLength digits. This does not
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// include the terminating '\0' character.
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static const int kFastDtoaMaximalLength = 17;
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// Provides a decimal representation of v.
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// v must not be (positive or negative) zero and it must not be Infinity or NaN.
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// Returns true if it succeeds, otherwise the result can not be trusted.
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// There will be *length digits inside the buffer followed by a null terminator.
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// If the function returns true then
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// v == (double) (buffer * 10^(point - length)).
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// The digits in the buffer are the shortest representation possible: no
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// 0.099999999999 instead of 0.1.
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// The last digit will be closest to the actual v. That is, even if several
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// digits might correctly yield 'v' when read again, the buffer will contain the
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// one closest to v.
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// The variable 'sign' will be '0' if the given number is positive, and '1'
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// otherwise.
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bool FastDtoa(double d,
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Vector<char> buffer,
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int* sign,
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int* length,
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int* point);
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} } // namespace v8::internal
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#endif // V8_FAST_DTOA_H_
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