| 1 | // Copyright 2010 the V8 project authors. All rights reserved. |
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| 2 | // Redistribution and use in source and binary forms, with or without |
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| 3 | // modification, are permitted provided that the following conditions are |
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| 4 | // met: |
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| 5 | // |
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| 6 | // * Redistributions of source code must retain the above copyright |
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| 7 | // notice, this list of conditions and the following disclaimer. |
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| 8 | // * Redistributions in binary form must reproduce the above |
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| 9 | // copyright notice, this list of conditions and the following |
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| 10 | // disclaimer in the documentation and/or other materials provided |
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| 11 | // with the distribution. |
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| 12 | // * Neither the name of Google Inc. nor the names of its |
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| 13 | // contributors may be used to endorse or promote products derived |
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| 14 | // from this software without specific prior written permission. |
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| 15 | // |
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| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | |
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| 28 | #ifndef DOUBLE_CONVERSION_FIXED_DTOA_H_ |
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| 29 | #define DOUBLE_CONVERSION_FIXED_DTOA_H_ |
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| 30 | |
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| 31 | #include <double-conversion/utils.h> |
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| 32 | |
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| 33 | namespace double_conversion { |
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| 34 | |
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| 35 | // Produces digits necessary to print a given number with |
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| 36 | // 'fractional_count' digits after the decimal point. |
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| 37 | // The buffer must be big enough to hold the result plus one terminating null |
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| 38 | // character. |
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| 39 | // |
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| 40 | // The produced digits might be too short in which case the caller has to fill |
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| 41 | // the gaps with '0's. |
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| 42 | // Example: FastFixedDtoa(0.001, 5, ...) is allowed to return buffer = "1", and |
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| 43 | // decimal_point = -2. |
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| 44 | // Halfway cases are rounded towards +/-Infinity (away from 0). The call |
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| 45 | // FastFixedDtoa(0.15, 2, ...) thus returns buffer = "2", decimal_point = 0. |
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| 46 | // The returned buffer may contain digits that would be truncated from the |
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| 47 | // shortest representation of the input. |
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| 48 | // |
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| 49 | // This method only works for some parameters. If it can't handle the input it |
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| 50 | // returns false. The output is null-terminated when the function succeeds. |
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| 51 | bool FastFixedDtoa(double v, int fractional_count, |
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| 52 | Vector<char> buffer, int* length, int* decimal_point); |
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| 53 | |
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| 54 | } // namespace double_conversion |
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| 55 | |
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| 56 | #endif // DOUBLE_CONVERSION_FIXED_DTOA_H_ |
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| 57 | |
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