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Comparing deliantra/server/include/util.h (file contents):
Revision 1.99 by root, Fri Apr 9 02:45:16 2010 UTC vs.
Revision 1.103 by root, Thu Apr 29 15:49:04 2010 UTC

… …
55#endif 55#endif
56 56
57// use C0X decltype for auto declarations until ISO C++ sanctifies them (if ever) 57// use C0X decltype for auto declarations until ISO C++ sanctifies them (if ever)
58#define auto(var,expr) decltype(expr) var = (expr) 58#define auto(var,expr) decltype(expr) var = (expr)
59 59
60// could use the sizeof (arr) /( sizeof (arr [0]) here, but C++ is
61// much more obfuscated... :)
62
63template<typename T, int N>
64inline int array_length (const T (&arr)[N])
65{
66 return N;
67}
68
60// very ugly macro that basically declares and initialises a variable 69// very ugly macro that basically declares and initialises a variable
61// that is in scope for the next statement only 70// that is in scope for the next statement only
62// works only for stuff that can be assigned 0 and converts to false 71// works only for stuff that can be assigned 0 and converts to false
63// (note: works great for pointers) 72// (note: works great for pointers)
64// most ugly macro I ever wrote 73// most ugly macro I ever wrote
… …
93// sign returns -1 or +1 102// sign returns -1 or +1
94template<typename T> 103template<typename T>
95static inline T sign (T v) { return v < 0 ? -1 : +1; } 104static inline T sign (T v) { return v < 0 ? -1 : +1; }
96// relies on 2c representation 105// relies on 2c representation
97template<> 106template<>
98inline 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); }
99 112
100// sign0 returns -1, 0 or +1 113// sign0 returns -1, 0 or +1
101template<typename T> 114template<typename T>
102static inline T sign0 (T v) { return v ? sign (v) : 0; } 115static inline T sign0 (T v) { return v ? sign (v) : 0; }
103 116
… …
470 return !is_constant (num) ? get_range (num) // non-constant 483 return !is_constant (num) ? get_range (num) // non-constant
471 : num & (num - 1) ? (this->next () * (uint64_t)num) >> 32U // constant, non-power-of-two 484 : num & (num - 1) ? (this->next () * (uint64_t)num) >> 32U // constant, non-power-of-two
472 : this->next () & (num - 1); // constant, power-of-two 485 : this->next () & (num - 1); // constant, power-of-two
473 } 486 }
474 487
475 // return a number within (min .. max) 488 // return a number within the closed interval [min .. max]
476 int operator () (int r_min, int r_max) 489 int operator () (int r_min, int r_max)
477 { 490 {
478 return is_constant (r_min) && is_constant (r_max) && r_min <= r_max 491 return is_constant (r_min) && is_constant (r_max) && r_min <= r_max
479 ? r_min + operator ()(r_max - r_min + 1) 492 ? r_min + operator ()(r_max - r_min + 1)
480 : get_range (r_min, r_max); 493 : get_range (r_min, r_max);
481 } 494 }
482 495
496 // return a number within the closed interval [0..1]
483 double operator ()() 497 double operator ()()
484 { 498 {
485 return this->next () / (double)0xFFFFFFFFU; 499 return this->next () / (double)0xFFFFFFFFU;
486 } 500 }
487 501
… …
562typedef refptr<maptile> maptile_ptr; 576typedef refptr<maptile> maptile_ptr;
563typedef refptr<object> object_ptr; 577typedef refptr<object> object_ptr;
564typedef refptr<archetype> arch_ptr; 578typedef refptr<archetype> arch_ptr;
565typedef refptr<client> client_ptr; 579typedef refptr<client> client_ptr;
566typedef refptr<player> player_ptr; 580typedef refptr<player> player_ptr;
581typedef refptr<region> region_ptr;
567 582
568#define STRHSH_NULL 2166136261 583#define STRHSH_NULL 2166136261
569 584
570static inline uint32_t 585static inline uint32_t
571strhsh (const char *s) 586strhsh (const char *s)

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