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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 #ifndef V8_CONVERSIONS_H_ | 28 #ifndef V8_CONVERSIONS_H_ |
| 29 #define V8_CONVERSIONS_H_ | 29 #define V8_CONVERSIONS_H_ |
| 30 | 30 |
| 31 #include <limits> | |
| 32 | |
| 33 #include "scanner-base.h" | 31 #include "scanner-base.h" |
| 32 #include "utils.h" |
| 34 | 33 |
| 35 namespace v8 { | 34 namespace v8 { |
| 36 namespace internal { | 35 namespace internal { |
| 37 | 36 |
| 38 // Maximum number of significant digits in decimal representation. | 37 // Maximum number of significant digits in decimal representation. |
| 39 // The longest possible double in decimal representation is | 38 // The longest possible double in decimal representation is |
| 40 // (2^53 - 1) * 2 ^ -1074 that is (2 ^ 53 - 1) * 5 ^ 1074 / 10 ^ 1074 | 39 // (2^53 - 1) * 2 ^ -1074 that is (2 ^ 53 - 1) * 5 ^ 1074 / 10 ^ 1074 |
| 41 // (768 digits). If we parse a number whose first digits are equal to a | 40 // (768 digits). If we parse a number whose first digits are equal to a |
| 42 // mean of 2 adjacent doubles (that could have up to 769 digits) the result | 41 // mean of 2 adjacent doubles (that could have up to 769 digits) the result |
| 43 // must be rounded to the bigger one unless the tail consists of zeros, so | 42 // must be rounded to the bigger one unless the tail consists of zeros, so |
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| 137 // Additional number to string conversions for the number type. | 136 // Additional number to string conversions for the number type. |
| 138 // The caller is responsible for calling free on the returned pointer. | 137 // The caller is responsible for calling free on the returned pointer. |
| 139 char* DoubleToFixedCString(double value, int f); | 138 char* DoubleToFixedCString(double value, int f); |
| 140 char* DoubleToExponentialCString(double value, int f); | 139 char* DoubleToExponentialCString(double value, int f); |
| 141 char* DoubleToPrecisionCString(double value, int f); | 140 char* DoubleToPrecisionCString(double value, int f); |
| 142 char* DoubleToRadixCString(double value, int radix); | 141 char* DoubleToRadixCString(double value, int radix); |
| 143 | 142 |
| 144 } } // namespace v8::internal | 143 } } // namespace v8::internal |
| 145 | 144 |
| 146 #endif // V8_CONVERSIONS_H_ | 145 #endif // V8_CONVERSIONS_H_ |
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