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/cvs/deliantra/server/include/util.h
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Comparing deliantra/server/include/util.h (file contents):
Revision 1.102 by root, Thu Apr 29 12:24:04 2010 UTC vs.
Revision 1.103 by root, Thu Apr 29 15:49:04 2010 UTC

… …
102// sign returns -1 or +1 102// sign returns -1 or +1
103template<typename T> 103template<typename T>
104static inline T sign (T v) { return v < 0 ? -1 : +1; } 104static inline T sign (T v) { return v < 0 ? -1 : +1; }
105// relies on 2c representation 105// relies on 2c representation
106template<> 106template<>
107inline sint8 sign (sint8 v) { return 1 - (sint8 (uint8 (v) >> 7) * 2); } 107inline sint8 sign (sint8 v) { return 1 - (sint8 (uint8 (v) >> 7) * 2); }
108template<>
109inline sint16 sign (sint16 v) { return 1 - (sint16 (uint16 (v) >> 15) * 2); }
110template<>
111inline sint32 sign (sint32 v) { return 1 - (sint32 (uint32 (v) >> 31) * 2); }
108 112
109// sign0 returns -1, 0 or +1 113// sign0 returns -1, 0 or +1
110template<typename T> 114template<typename T>
111static inline T sign0 (T v) { return v ? sign (v) : 0; } 115static inline T sign0 (T v) { return v ? sign (v) : 0; }
112 116

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