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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.33 by root, Sun Dec 2 22:36:42 2007 UTC vs.
Revision 1.48 by root, Thu Jan 19 17:10:51 2012 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 <stdlib.h>
5#include <cstring> 5#include <string.h>
6 6#include "ecb.h"
7using namespace std;
8
9#define PP_CONCAT_(a, b) a ## b
10#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
11#define PP_STRINGIFY_(a) #a
12#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
13
14#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
15
16#if __GNUC__ >= 4
17# define rxvt_attribute(x) __attribute__(x)
18#else
19# define rxvt_attribute(x)
20#endif
21
22#define NORETURN rxvt_attribute ((noreturn))
23#define UNUSED rxvt_attribute ((unused))
24#define CONST rxvt_attribute ((const))
25 7
26// increases code size unless -fno-enforce-eh-specs 8// increases code size unless -fno-enforce-eh-specs
27#if __GNUC__ 9#if __GNUC__
28# define NOTHROW 10# define NOTHROW
29# define THROW(x) 11# define THROW(x)
30#else 12#else
31# define NOTHROW throw() 13# define NOTHROW throw()
32# define THROW(x) throw x 14# define THROW(x) throw x
33#endif 15#endif
34 16
35extern class byteorder {
36 static unsigned int e; // at least 32 bits
37public:
38 byteorder ();
39
40 static bool big_endian () { return e == 0x11223344; };
41 static bool network () { return e == 0x11223344; };
42 static bool little_endian () { return e == 0x44332211; };
43 static bool vax () { return e == 0x44332211; };
44} byteorder;
45
46// various utility functions 17// various utility functions
47template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; } 18template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; }
48template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; } 19template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; }
49template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; } 20template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; }
50template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; } 21template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; }
… …
81rxvt_temp_buf (int len) 52rxvt_temp_buf (int len)
82{ 53{
83 return (T *)rxvt_temp_buf (len * sizeof (T)); 54 return (T *)rxvt_temp_buf (len * sizeof (T));
84} 55}
85 56
86// some bit functions, xft fuck me plenty
87#if HAVE_GCC_BUILTINS
88static inline int ctz (unsigned int x) { return __builtin_ctz (x); }
89static inline int popcount (unsigned int x) { return __builtin_popcount (x); }
90#else
91// count trailing zero bits and count # of one bits
92int ctz (unsigned int x) CONST;
93int popcount (unsigned int x) CONST;
94#endif
95
96// in range including end 57// in range including end
97#define IN_RANGE_INC(val,beg,end) \ 58#define IN_RANGE_INC(val,beg,end) \
98 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 59 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
99 60
100// in range excluding end 61// in range excluding end
101#define IN_RANGE_EXC(val,beg,end) \ 62#define IN_RANGE_EXC(val,beg,end) \
102 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 63 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
103 64
65// for m >= -n, ensure remainder lies between 0..n-1
66#define MOD(m,n) (((m) + (n)) % (n))
67
104// makes dynamically allocated objects zero-initialised 68// makes dynamically allocated objects zero-initialised
105struct zero_initialized { 69struct zero_initialized
70{
106 void *operator new (size_t s); 71 void *operator new (size_t s);
107 void operator delete (void *p, size_t s); 72 void operator delete (void *p, size_t s);
108}; 73};
109 74
110/* simplevec taken (and heavily modified), from: 75/* simplevec taken (and heavily modified), from:
111 * 76 *
112 * MICO --- a free CORBA implementation 77 * MICO --- a free CORBA implementation
113 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 78 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
114 */ 79 */
115template<class T> 80template<class T>
116struct simplevec { 81struct simplevec
82{
117 typedef T* iterator; 83 typedef T* iterator;
118 typedef const T* const_iterator; 84 typedef const T* const_iterator;
119 typedef unsigned long size_type; 85 typedef unsigned long size_type;
120 86
121private: 87private:
… …
362} 328}
363 329
364 330
365template<typename T> 331template<typename T>
366struct vector : simplevec<T> 332struct vector : simplevec<T>
367{ }; 333{
334};
368 335
369struct stringvec : simplevec<char *> 336struct stringvec : simplevec<char *>
370{ 337{
371 ~stringvec () 338 ~stringvec ()
372 { 339 {
373 for (char **c = begin (); c != end (); c++) 340 for (char **c = begin (); c != end (); c++)
374 free (*c); 341 free (*c);
375 } 342 }
376}; 343};
377 344
345#if 0
378template<typename T> 346template<typename T>
379struct rxvt_vec : simplevec<void *> { 347struct rxvt_vec : simplevec<void *>
348{
380 typedef T *iterator; 349 typedef T *iterator;
381 350
382 void push_back (T d) { simplevec<void *>::push_back ((void *)d); } 351 void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
383 T pop_back () { return (T*)simplevec<void *>::pop_back (); } 352 T pop_back () { return (T*)simplevec<void *>::pop_back (); }
384 void erase (int i) { erase (begin () + i); } 353 void erase (int i) { erase (begin () + i); }
… …
386 iterator begin () const { return (iterator)simplevec<void *>::begin (); } 355 iterator begin () const { return (iterator)simplevec<void *>::begin (); }
387 iterator end () const { return (iterator)simplevec<void *>::end (); } 356 iterator end () const { return (iterator)simplevec<void *>::end (); }
388 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } 357 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); }
389 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } 358 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
390}; 359};
360#endif
391 361
392template<typename T> 362template<typename T>
393struct auto_ptr { 363struct auto_ptr
364{
394 T *p; 365 T *p;
395 366
396 auto_ptr () : p (0) { } 367 auto_ptr () : p (0) { }
397 auto_ptr (T *a) : p (a) { } 368 auto_ptr (T *a) : p (a) { }
398 369

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