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Side by Side Diff: src/conversions.h

Issue 661275: Added implementation if Uint32::Value. (Closed)
Patch Set: Added IsUint32 Created 10 years, 9 months ago
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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. 1 // Copyright 2006-2008 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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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 namespace v8 { 31 namespace v8 {
32 namespace internal { 32 namespace internal {
33 33
34 34
35 // The fast double-to-int conversion routine does not guarantee 35 // The fast double-to-(unsigned-)int conversion routine does not guarantee
36 // rounding towards zero. 36 // rounding towards zero.
37 // The result is unspecified if x is infinite or NaN, or if the rounded 37 // The result is unspecified if x is infinite or NaN, or if the rounded
38 // integer value is outside the range of type int. 38 // integer value is outside the range of type int.
39 static inline int FastD2I(double x); 39 static inline int FastD2I(double x);
40 static inline unsigned int FastD2UI(double x);
40 41
41 42
42 static inline double FastI2D(int x) { 43 static inline double FastI2D(int x) {
43 // There is no rounding involved in converting an integer to a 44 // There is no rounding involved in converting an integer to a
44 // double, so this code should compile to a few instructions without 45 // double, so this code should compile to a few instructions without
45 // any FPU pipeline stalls. 46 // any FPU pipeline stalls.
46 return static_cast<double>(x); 47 return static_cast<double>(x);
47 } 48 }
48 49
49 50
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109 // Additional number to string conversions for the number type. 110 // Additional number to string conversions for the number type.
110 // The caller is responsible for calling free on the returned pointer. 111 // The caller is responsible for calling free on the returned pointer.
111 char* DoubleToFixedCString(double value, int f); 112 char* DoubleToFixedCString(double value, int f);
112 char* DoubleToExponentialCString(double value, int f); 113 char* DoubleToExponentialCString(double value, int f);
113 char* DoubleToPrecisionCString(double value, int f); 114 char* DoubleToPrecisionCString(double value, int f);
114 char* DoubleToRadixCString(double value, int radix); 115 char* DoubleToRadixCString(double value, int radix);
115 116
116 } } // namespace v8::internal 117 } } // namespace v8::internal
117 118
118 #endif // V8_CONVERSIONS_H_ 119 #endif // V8_CONVERSIONS_H_
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