1// Copyright 2010 the V8 project authors. All rights reserved.
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3// modification, are permitted provided that the following conditions are
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27
28#ifndef DOUBLE_CONVERSION_FIXED_DTOA_H_
29#define DOUBLE_CONVERSION_FIXED_DTOA_H_
30
31#include "utils.h"
32
33namespace double_conversion {
34
35// Produces digits necessary to print a given number with
36// 'fractional_count' digits after the decimal point.
37// The buffer must be big enough to hold the result plus one terminating null
38// character.
39//
40// The produced digits might be too short in which case the caller has to fill
41// the gaps with '0's.
42// Example: FastFixedDtoa(0.001, 5, ...) is allowed to return buffer = "1", and
43// decimal_point = -2.
44// Halfway cases are rounded towards +/-Infinity (away from 0). The call
45// FastFixedDtoa(0.15, 2, ...) thus returns buffer = "2", decimal_point = 0.
46// The returned buffer may contain digits that would be truncated from the
47// shortest representation of the input.
48//
49// This method only works for some parameters. If it can't handle the input it
50// returns false. The output is null-terminated when the function succeeds.
51bool FastFixedDtoa(double v, int fractional_count,
52 Vector<char> buffer, int* length, int* decimal_point);
53
54} // namespace double_conversion
55
56#endif // DOUBLE_CONVERSION_FIXED_DTOA_H_
57