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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.34 by root, Sun Dec 2 22:37:14 2007 UTC vs.
Revision 1.46 by sf-exg, Thu Jun 2 13:07:28 2011 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 <cstdlib>
5#include <cstring> 5#include <cstring>
6#include "ecb.h"
6 7
7using namespace std; 8using 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 9
26// increases code size unless -fno-enforce-eh-specs 10// increases code size unless -fno-enforce-eh-specs
27#if __GNUC__ 11#if __GNUC__
28# define NOTHROW 12# define NOTHROW
29# define THROW(x) 13# define THROW(x)
30#else 14#else
31# define NOTHROW throw() 15# define NOTHROW throw()
32# define THROW(x) throw x 16# define THROW(x) throw x
33#endif 17#endif
34 18
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 19// various utility functions
47template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; } 20template<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; } 21template<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; } 22template<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; } 23template<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) 54rxvt_temp_buf (int len)
82{ 55{
83 return (T *)rxvt_temp_buf (len * sizeof (T)); 56 return (T *)rxvt_temp_buf (len * sizeof (T));
84} 57}
85 58
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 59// in range including end
97#define IN_RANGE_INC(val,beg,end) \ 60#define IN_RANGE_INC(val,beg,end) \
98 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 61 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
99 62
100// in range excluding end 63// in range excluding end
101#define IN_RANGE_EXC(val,beg,end) \ 64#define IN_RANGE_EXC(val,beg,end) \
102 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 65 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
103 66
67// for m >= -n, ensure remainder lies between 0..n-1
68#define MOD(m,n) (((m) + (n)) % (n))
69
104// makes dynamically allocated objects zero-initialised 70// makes dynamically allocated objects zero-initialised
105struct zero_initialized { 71struct zero_initialized
72{
106 void *operator new (size_t s); 73 void *operator new (size_t s);
107 void operator delete (void *p, size_t s); 74 void operator delete (void *p, size_t s);
108}; 75};
109 76
110/* simplevec taken (and heavily modified), from: 77/* simplevec taken (and heavily modified), from:
111 * 78 *
112 * MICO --- a free CORBA implementation 79 * MICO --- a free CORBA implementation
113 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 80 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
114 */ 81 */
115template<class T> 82template<class T>
116struct simplevec { 83struct simplevec
84{
117 typedef T* iterator; 85 typedef T* iterator;
118 typedef const T* const_iterator; 86 typedef const T* const_iterator;
119 typedef unsigned long size_type; 87 typedef unsigned long size_type;
120 88
121private: 89private:
… …
362} 330}
363 331
364 332
365template<typename T> 333template<typename T>
366struct vector : simplevec<T> 334struct vector : simplevec<T>
367{ }; 335{
336};
368 337
369struct stringvec : simplevec<char *> 338struct stringvec : simplevec<char *>
370{ 339{
371 ~stringvec () 340 ~stringvec ()
372 { 341 {
… …
375 } 344 }
376}; 345};
377 346
378#if 0 347#if 0
379template<typename T> 348template<typename T>
380struct rxvt_vec : simplevec<void *> { 349struct rxvt_vec : simplevec<void *>
350{
381 typedef T *iterator; 351 typedef T *iterator;
382 352
383 void push_back (T d) { simplevec<void *>::push_back ((void *)d); } 353 void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
384 T pop_back () { return (T*)simplevec<void *>::pop_back (); } 354 T pop_back () { return (T*)simplevec<void *>::pop_back (); }
385 void erase (int i) { erase (begin () + i); } 355 void erase (int i) { erase (begin () + i); }
… …
390 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } 360 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
391}; 361};
392#endif 362#endif
393 363
394template<typename T> 364template<typename T>
395struct auto_ptr { 365struct auto_ptr
366{
396 T *p; 367 T *p;
397 368
398 auto_ptr () : p (0) { } 369 auto_ptr () : p (0) { }
399 auto_ptr (T *a) : p (a) { } 370 auto_ptr (T *a) : p (a) { }
400 371

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