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 1.15 by root, Mon Jan 2 15:35:43 2006 UTC vs.
Revision 1.21 by root, Sun Jan 29 20:51:28 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
… …
17 static bool network () { return e == 0x11223344; }; 18 static bool network () { return e == 0x11223344; };
18 static bool little_endian () { return e == 0x44332211; }; 19 static bool little_endian () { return e == 0x44332211; };
19 static bool vax () { return e == 0x44332211; }; 20 static bool vax () { return e == 0x44332211; };
20} byteorder; 21} byteorder;
21 22
23// various utility functions
22template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; } 24template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; }
23template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; } 25template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; }
24template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; } 26template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; }
25template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; } 27template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; }
26 28
27template<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 T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; }
28template<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; } 30template<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; }
29 31
30template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } 32template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
31 33
34// linear interpolation
35template<typename T, typename U, typename P>
36static inline
37T lerp (T a, U b, P p)
38{
39 return (int(a) * int(p) + int(b) * int(100 - p)) / 100;
40}
41
32// in range including end 42// in range including end
33#define IN_RANGE_INC(val,beg,end) \ 43#define IN_RANGE_INC(val,beg,end) \
34 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 44 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
35 45
36// in range excluding end 46// in range excluding end
37#define IN_RANGE_EXC(val,beg,end) \ 47#define IN_RANGE_EXC(val,beg,end) \
38 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 48 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
39 49
50// makes dynamically allocated objects zero-initialised
40struct zero_initialized { 51struct zero_initialized {
41 void *operator new (size_t s); 52 void *operator new (size_t s);
42 void operator delete (void *p, size_t s); 53 void operator delete (void *p, size_t s);
43}; 54};
44 55
… …
254 return pos; 265 return pos;
255 } 266 }
256 void erase (iterator first, iterator last) 267 void erase (iterator first, iterator last)
257 { 268 {
258 if (last != first) { 269 if (last != first) {
259 memmove (first, last, (end ()-last)*sizeof (T)); 270 memmove (first, last, (end () - last) * sizeof (T));
260 _last -= last - first; 271 _last -= last - first;
261 } 272 }
262 } 273 }
263 void erase (iterator pos) 274 void erase (iterator pos)
264 { 275 {
265 if (pos != end ()) { 276 if (pos != end ()) {
266 memmove (pos, pos+1, (end ()- (pos+1))*sizeof (T)); 277 memmove (pos, pos+1, (end () - (pos+1)) * sizeof (T));
267 --_last; 278 --_last;
268 } 279 }
269 } 280 }
270 void swap (simplevec<T> &t) 281 void swap (simplevec<T> &t)
271 { 282 {
… …
389struct stringvec : simplevec<char *> 400struct stringvec : simplevec<char *>
390{ 401{
391 ~stringvec () 402 ~stringvec ()
392 { 403 {
393 for (char **c = begin (); c != end (); c++) 404 for (char **c = begin (); c != end (); c++)
394 delete [] *c; 405 free (*c);
395 } 406 }
396}; 407};
397 408
409// return a very temporary (and never deallocated) buffer. keep small.
410void *rxvt_temp_buf (int len);
411
412template<typename T>
413inline T *
414rxvt_temp_buf (int len)
415{
416 return (T *)rxvt_temp_buf (len * sizeof (T));
417}
418
398#endif 419#endif
399 420

Diff Legend

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