d4b533d41b
R=svenpanne@chromium.org Review URL: https://codereview.chromium.org/259183002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21035 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
33 lines
1.2 KiB
C++
33 lines
1.2 KiB
C++
// 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_
|
|
|
|
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.
|
|
bool FastFixedDtoa(double v, int fractional_count,
|
|
Vector<char> buffer, int* length, int* decimal_point);
|
|
|
|
} } // namespace v8::internal
|
|
|
|
#endif // V8_FIXED_DTOA_H_
|