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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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205 } | 205 } |
206 | 206 |
207 | 207 |
208 // ---------------------------------------------------------------------------- | 208 // ---------------------------------------------------------------------------- |
209 // Hash function. | 209 // Hash function. |
210 | 210 |
211 uint32_t ComputeIntegerHash(uint32_t key); | 211 uint32_t ComputeIntegerHash(uint32_t key); |
212 | 212 |
213 | 213 |
214 // ---------------------------------------------------------------------------- | 214 // ---------------------------------------------------------------------------- |
| 215 // Bitwise rotate word |
| 216 |
| 217 inline uint32_t RotateRight(uint32_t value, uint32_t n) { |
| 218 ASSERT(n < 31); |
| 219 return (value >> n) | (value << (32-n)); |
| 220 } |
| 221 |
| 222 |
| 223 inline uint32_t RotateLeft(uint32_t value, uint32_t n) { |
| 224 ASSERT(n < 31); |
| 225 return (value << n) | (value >> (32-n)); |
| 226 } |
| 227 |
| 228 |
| 229 // ---------------------------------------------------------------------------- |
215 // I/O support. | 230 // I/O support. |
216 | 231 |
217 // Our version of printf(). Avoids compilation errors that we get | 232 // Our version of printf(). Avoids compilation errors that we get |
218 // with standard printf when attempting to print pointers, etc. | 233 // with standard printf when attempting to print pointers, etc. |
219 // (the errors are due to the extra compilation flags, which we | 234 // (the errors are due to the extra compilation flags, which we |
220 // want elsewhere). | 235 // want elsewhere). |
221 void PrintF(const char* format, ...); | 236 void PrintF(const char* format, ...); |
222 | 237 |
223 // Our version of fflush. | 238 // Our version of fflush. |
224 void Flush(); | 239 void Flush(); |
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570 #endif | 585 #endif |
571 while (dest < limit) { | 586 while (dest < limit) { |
572 *dest++ = static_cast<sinkchar>(*src++); | 587 *dest++ = static_cast<sinkchar>(*src++); |
573 } | 588 } |
574 } | 589 } |
575 | 590 |
576 | 591 |
577 } } // namespace v8::internal | 592 } } // namespace v8::internal |
578 | 593 |
579 #endif // V8_UTILS_H_ | 594 #endif // V8_UTILS_H_ |
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