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| 1 /* | 1 /* |
| 2 * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
| 8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
| 10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
| (...skipping 10 matching lines...) Expand all Loading... | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 */ | 24 */ |
| 25 | 25 |
| 26 #ifndef WTF_MathExtras_h | 26 #ifndef WTF_MathExtras_h |
| 27 #define WTF_MathExtras_h | 27 #define WTF_MathExtras_h |
| 28 | 28 |
| 29 #include "wtf/Assertions.h" | 29 #include "wtf/Assertions.h" |
| 30 #include "wtf/CPU.h" | 30 #include "wtf/CPU.h" |
| 31 #include <algorithm> | 31 #include <cmath> // For std::isinf and std::isnan |
|
Nico
2015/04/16 21:16:56
remove comment
| |
| 32 #include <cmath> | 32 #include <limits> // For std::numeric_limits |
|
Nico
2015/04/16 21:16:56
remove comment
| |
| 33 #include <limits> | |
| 34 | 33 |
| 35 #if COMPILER(MSVC) | 34 #if COMPILER(MSVC) |
| 36 #include <stdint.h> | 35 #include <stdint.h> |
| 37 #endif | 36 #endif |
| 38 | 37 |
| 39 #if OS(OPENBSD) | 38 #if OS(OPENBSD) |
| 40 #include <sys/types.h> | 39 #include <sys/types.h> |
| 41 #include <machine/ieee.h> | 40 #include <machine/ieee.h> |
| 42 #endif | 41 #endif |
| 43 | 42 |
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| 336 if (i >> 2) | 335 if (i >> 2) |
| 337 log2 += 2, i >>= 2; | 336 log2 += 2, i >>= 2; |
| 338 if (i >> 1) | 337 if (i >> 1) |
| 339 log2 += 1; | 338 log2 += 1; |
| 340 return log2; | 339 return log2; |
| 341 } | 340 } |
| 342 | 341 |
| 343 } // namespace WTF | 342 } // namespace WTF |
| 344 | 343 |
| 345 #endif // #ifndef WTF_MathExtras_h | 344 #endif // #ifndef WTF_MathExtras_h |
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