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Comparing deliantra/server/include/util.h (file contents):
Revision 1.42 by root, Sat Apr 21 23:03:54 2007 UTC vs.
Revision 1.45 by root, Sat May 26 15:44:05 2007 UTC

… …
2#define UTIL_H__ 2#define UTIL_H__
3 3
4//#define PREFER_MALLOC 4//#define PREFER_MALLOC
5 5
6#if __GNUC__ >= 3 6#if __GNUC__ >= 3
7# define is_constant(c) __builtin_constant_p (c) 7# define is_constant(c) __builtin_constant_p (c)
8# define expect(expr,value) __builtin_expect ((expr),(value))
9# define prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
8#else 10#else
9# define is_constant(c) 0 11# define is_constant(c) 0
12# define expect(expr,value) (expr)
13# define prefetch(addr,rw,locality)
10#endif 14#endif
15
16// put into ifs if you are very sure that the expression
17// is mostly true or mosty false. note that these return
18// booleans, not the expression.
19#define expect_false(expr) expect ((expr) != 0, 0)
20#define expect_true(expr) expect ((expr) != 0, 1)
11 21
12#include <cstddef> 22#include <cstddef>
13#include <cmath> 23#include <cmath>
14#include <new> 24#include <new>
15#include <vector> 25#include <vector>
… …
44template<typename T, typename U> static inline T min (T a, U b) { return (U)a < b ? (U)a : b; } 54template<typename T, typename U> static inline T min (T a, U b) { return (U)a < b ? (U)a : b; }
45template<typename T, typename U> static inline T max (T a, U b) { return (U)a > b ? (U)a : b; } 55template<typename T, typename U> static inline T max (T a, U b) { return (U)a > b ? (U)a : b; }
46template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; } 56template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; }
47 57
48template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } 58template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
59
60template<typename T>
61static inline T
62lerp (T val, T min_in, T max_in, T min_out, T max_out)
63{
64 return (val - min_in) * (max_out - min_out) / (max_in - min_in) + min_out;
65}
49 66
50// lots of stuff taken from FXT 67// lots of stuff taken from FXT
51 68
52/* Rotate right. This is used in various places for checksumming */ 69/* Rotate right. This is used in various places for checksumming */
53//TODO: that sucks, use a better checksum algo 70//TODO: that sucks, use a better checksum algo
… …
434// return current time as timestampe 451// return current time as timestampe
435tstamp now (); 452tstamp now ();
436 453
437int similar_direction (int a, int b); 454int similar_direction (int a, int b);
438 455
456// like printf, but returns a std::string
457const std::string format (const char *format, ...);
458
439#endif 459#endif
440 460

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