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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.12 by root, Wed Dec 21 10:34:24 2005 UTC vs.
Revision 1.20 by root, Wed Jan 25 00:42:21 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>
6
7#define PP_CONCAT_(a, b) a ## b
8#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
9#define PP_STRINGIFY_(a) #a
10#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
5 11
6extern class byteorder { 12extern class byteorder {
7 static unsigned int e; // at least 32 bits 13 static unsigned int e; // at least 32 bits
8public: 14public:
9 byteorder (); 15 byteorder ();
… …
12 static bool network () { return e == 0x11223344; }; 18 static bool network () { return e == 0x11223344; };
13 static bool little_endian () { return e == 0x44332211; }; 19 static bool little_endian () { return e == 0x44332211; };
14 static bool vax () { return e == 0x44332211; }; 20 static bool vax () { return e == 0x44332211; };
15} byteorder; 21} byteorder;
16 22
17template<typename T, typename U> 23// various utility functions
18static 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; }
19template<typename T, typename U> 25template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; }
20static 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; }
21template<typename T, typename U, typename V> 27template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; }
28
22static 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; }
23template<typename T, typename U> 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; }
31
24static 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; }
25 33
26// in range including end 34// in range including end
27#define IN_RANGE_INC(val,beg,end) \ 35#define IN_RANGE_INC(val,beg,end) \
28 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 36 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
29 37
30// in range excluding end 38// in range excluding end
31#define IN_RANGE_EXC(val,beg,end) \ 39#define IN_RANGE_EXC(val,beg,end) \
32 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 40 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
33 41
42// makes dynamically allocated objects zero-initialised
34struct zero_initialized { 43struct zero_initialized {
35 void *operator new (size_t s); 44 void *operator new (size_t s);
36 void operator delete (void *p, size_t s); 45 void operator delete (void *p, size_t s);
37}; 46};
38 47
… …
248 return pos; 257 return pos;
249 } 258 }
250 void erase (iterator first, iterator last) 259 void erase (iterator first, iterator last)
251 { 260 {
252 if (last != first) { 261 if (last != first) {
253 memmove (first, last, (end ()-last)*sizeof (T)); 262 memmove (first, last, (end () - last) * sizeof (T));
254 _last -= last - first; 263 _last -= last - first;
255 } 264 }
256 } 265 }
257 void erase (iterator pos) 266 void erase (iterator pos)
258 { 267 {
259 if (pos != end ()) { 268 if (pos != end ()) {
260 memmove (pos, pos+1, (end ()- (pos+1))*sizeof (T)); 269 memmove (pos, pos+1, (end () - (pos+1)) * sizeof (T));
261 --_last; 270 --_last;
262 } 271 }
263 } 272 }
264 void swap (simplevec<T> &t) 273 void swap (simplevec<T> &t)
265 { 274 {
… …
383struct stringvec : simplevec<char *> 392struct stringvec : simplevec<char *>
384{ 393{
385 ~stringvec () 394 ~stringvec ()
386 { 395 {
387 for (char **c = begin (); c != end (); c++) 396 for (char **c = begin (); c != end (); c++)
388 delete [] *c; 397 free (*c);
389 } 398 }
390}; 399};
391 400
401// return a very temporary (and never deallocated) buffer. keep small.
402void *rxvt_temp_buf (int len);
403
404template<typename T>
405inline T *
406rxvt_temp_buf (int len)
407{
408 return (T *)rxvt_temp_buf (len * sizeof (T));
409}
410
392#endif 411#endif
393 412

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