OLD | NEW |
1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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 |
(...skipping 11 matching lines...) Expand all Loading... |
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 DOUBLE_CONVERSION_UTILS_H_ | 28 #ifndef DOUBLE_CONVERSION_UTILS_H_ |
29 #define DOUBLE_CONVERSION_UTILS_H_ | 29 #define DOUBLE_CONVERSION_UTILS_H_ |
30 | 30 |
31 #include "wtf/Assertions.h" | 31 #include "wtf/Assertions.h" |
32 #include "wtf/CPU.h" | |
33 #include <string.h> | 32 #include <string.h> |
34 | 33 |
35 #define UNIMPLEMENTED ASSERT_NOT_REACHED | 34 #define UNIMPLEMENTED ASSERT_NOT_REACHED |
36 #define UNREACHABLE ASSERT_NOT_REACHED | 35 #define UNREACHABLE ASSERT_NOT_REACHED |
37 | 36 |
38 // Double operations detection based on target architecture. | 37 // Double operations detection based on target architecture. |
39 // Linux uses a 80bit wide floating point stack on x86. This induces double | 38 // Linux uses a 80bit wide floating point stack on x86. This induces double |
40 // rounding, which in turn leads to wrong results. | 39 // rounding, which in turn leads to wrong results. |
41 // An easy way to test if the floating-point operations are correct is to | 40 // An easy way to test if the floating-point operations are correct is to |
42 // evaluate: 89255.0/1e22. If the floating-point stack is 64 bits wide then | 41 // evaluate: 89255.0/1e22. If the floating-point stack is 64 bits wide then |
(...skipping 256 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
299 template <class Dest, class Source> | 298 template <class Dest, class Source> |
300 inline Dest BitCast(Source* source) { | 299 inline Dest BitCast(Source* source) { |
301 return BitCast<Dest>(reinterpret_cast<uintptr_t>(source)); | 300 return BitCast<Dest>(reinterpret_cast<uintptr_t>(source)); |
302 } | 301 } |
303 | 302 |
304 } // namespace double_conversion | 303 } // namespace double_conversion |
305 | 304 |
306 } // namespace WTF | 305 } // namespace WTF |
307 | 306 |
308 #endif // DOUBLE_CONVERSION_UTILS_H_ | 307 #endif // DOUBLE_CONVERSION_UTILS_H_ |
OLD | NEW |