| 1 | /* |
1 | /* |
| 2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
| 3 | * |
3 | * |
| 4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
| 5 | * |
5 | * |
| 6 | * Deliantra is free software: you can redistribute it and/or modify it under |
6 | * Deliantra is free software: you can redistribute it and/or modify it under |
| 7 | * the terms of the Affero GNU General Public License as published by the |
7 | * the terms of the Affero GNU General Public License as published by the |
| 8 | * Free Software Foundation, either version 3 of the License, or (at your |
8 | * Free Software Foundation, either version 3 of the License, or (at your |
| 9 | * option) any later version. |
9 | * option) any later version. |
| … | |
… | |
| 573 | // FNV-1a is faster on many cpus because the multiplication |
573 | // FNV-1a is faster on many cpus because the multiplication |
| 574 | // runs concurrently with the looping logic. |
574 | // runs concurrently with the looping logic. |
| 575 | uint32_t hash = STRHSH_NULL; |
575 | uint32_t hash = STRHSH_NULL; |
| 576 | |
576 | |
| 577 | while (*s) |
577 | while (*s) |
| 578 | hash = (hash ^ *s++) * 16777619; |
578 | hash = (hash ^ *s++) * 16777619U; |
| 579 | |
579 | |
| 580 | return hash; |
580 | return hash; |
| 581 | } |
581 | } |
| 582 | |
582 | |
| 583 | static inline uint32_t |
583 | static inline uint32_t |
| 584 | memhsh (const char *s, size_t len) |
584 | memhsh (const char *s, size_t len) |
| 585 | { |
585 | { |
| 586 | uint32_t hash = STRHSH_NULL; |
586 | uint32_t hash = STRHSH_NULL; |
| 587 | |
587 | |
| 588 | while (len--) |
588 | while (len--) |
| 589 | hash = (hash ^ *s++) * 16777619; |
589 | hash = (hash ^ *s++) * 16777619U; |
| 590 | |
590 | |
| 591 | return hash; |
591 | return hash; |
| 592 | } |
592 | } |
| 593 | |
593 | |
| 594 | struct str_hash |
594 | struct str_hash |
