ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/rxvt-unicode/src/rxvtutil.h
(Generate patch)

Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.18 by root, Tue Jan 17 16:06:48 2006 UTC vs.
Revision 1.22 by root, Sun Jan 29 22:27:04 2006 UTC

1#ifndef RXVT_UTIL_H 1#ifndef RXVT_UTIL_H
2#define RXVT_UTIL_H 2#define RXVT_UTIL_H
3 3
4#include <cstdlib>
4#include <cstring> 5#include <cstring>
5 6
6#define PP_CONCAT_(a, b) a ## b 7#define PP_CONCAT_(a, b) a ## b
7#define PP_CONCAT(a, b) PP_CONCAT_(a, b) 8#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
8#define PP_STRINGIFY_(a) #a 9#define PP_STRINGIFY_(a) #a
9#define PP_STRINGIFY(a) PP_STRINGIFY_(a) 10#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
11
12// actually, some gcc-3.x versions work, too
13#define HAVE_GCC_BUILTINS (__GNUC__ >= 4)
14#define HAVE_GCC_BUILTINS 0
10 15
11extern class byteorder { 16extern class byteorder {
12 static unsigned int e; // at least 32 bits 17 static unsigned int e; // at least 32 bits
13public: 18public:
14 byteorder (); 19 byteorder ();
… …
27 32
28template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } 33template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; }
29template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; } 34template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; }
30 35
31template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } 36template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
37
38// linear interpolation
39template<typename T, typename U, typename P>
40static inline
41T lerp (T a, U b, P p)
42{
43 return (int(a) * int(p) + int(b) * int(100 - p)) / 100;
44}
45
46// some bit functions, xft fuck me plenty
47#if HAVE_GCC_BUILTINS
48static inline int ctz (unsigned int x) { return __builtin_ctz (x); }
49static inline int popcount (unsigned int x) { return __builtin_popcount (x); }
50#else
51// count trailing zero bits and count # of one bits
52int ctz (unsigned int x);
53int popcount (unsigned int x);
54#endif
32 55
33// in range including end 56// in range including end
34#define IN_RANGE_INC(val,beg,end) \ 57#define IN_RANGE_INC(val,beg,end) \
35 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 58 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
36 59
… …
391struct stringvec : simplevec<char *> 414struct stringvec : simplevec<char *>
392{ 415{
393 ~stringvec () 416 ~stringvec ()
394 { 417 {
395 for (char **c = begin (); c != end (); c++) 418 for (char **c = begin (); c != end (); c++)
396 delete [] *c; 419 free (*c);
397 } 420 }
398}; 421};
399 422
423// return a very temporary (and never deallocated) buffer. keep small.
424void *rxvt_temp_buf (int len);
425
426template<typename T>
427inline T *
428rxvt_temp_buf (int len)
429{
430 return (T *)rxvt_temp_buf (len * sizeof (T));
431}
432
400#endif 433#endif
401 434

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines