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