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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.35 by root, Tue Dec 4 16:33:42 2007 UTC vs.
Revision 1.41 by sf-exg, Sat Dec 18 18:17:39 2010 UTC

… …
3 3
4#include <cstdlib> 4#include <cstdlib>
5#include <cstring> 5#include <cstring>
6 6
7using namespace std; 7using namespace std;
8
9#define ARRAY_LENGTH(v) (sizeof (v) / sizeof ((v)[0]))
8 10
9#define PP_CONCAT_(a, b) a ## b 11#define PP_CONCAT_(a, b) a ## b
10#define PP_CONCAT(a, b) PP_CONCAT_(a, b) 12#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
11#define PP_STRINGIFY_(a) #a 13#define PP_STRINGIFY_(a) #a
12#define PP_STRINGIFY(a) PP_STRINGIFY_(a) 14#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
13 15
14#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4)) 16#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
15 17
16#if __GNUC__ >= 4 18#if __GNUC__ >= 4
17# define rxvt_attribute(x) __attribute__(x) 19# define rxvt_attribute(x) __attribute__(x)
20# define expect(expr,value) __builtin_expect ((expr),(value))
18#else 21#else
19# define rxvt_attribute(x) 22# define rxvt_attribute(x)
23# define expect(expr,value) (expr)
20#endif 24#endif
25
26// put into ifs if you are very sure that the expression
27// is mostly true or mostly false. note that these return
28// booleans, not the expression.
29#define expect_false(expr) expect ((expr) != 0, 0)
30#define expect_true(expr) expect ((expr) != 0, 1)
21 31
22#define NORETURN rxvt_attribute ((noreturn)) 32#define NORETURN rxvt_attribute ((noreturn))
23#define UNUSED rxvt_attribute ((unused)) 33#define UNUSED rxvt_attribute ((unused))
24#define CONST rxvt_attribute ((const)) 34#define CONST rxvt_attribute ((const))
25 35
… …
83 return (T *)rxvt_temp_buf (len * sizeof (T)); 93 return (T *)rxvt_temp_buf (len * sizeof (T));
84} 94}
85 95
86// some bit functions, xft fuck me plenty 96// some bit functions, xft fuck me plenty
87#if HAVE_GCC_BUILTINS 97#if HAVE_GCC_BUILTINS
98/* netbsd stupidly defines popcount itself and puts it into string.h */
88static inline int ctz (unsigned int x) { return __builtin_ctz (x); } 99static inline int rxvt_ctz (unsigned int x) { return __builtin_ctz (x); }
89static inline int popcount (unsigned int x) { return __builtin_popcount (x); } 100static inline int rxvt_popcount (unsigned int x) { return __builtin_popcount (x); }
90#else 101#else
91// count trailing zero bits and count # of one bits 102// count trailing zero bits and count # of one bits
92int ctz (unsigned int x) CONST; 103int rxvt_ctz (unsigned int x) CONST;
93int popcount (unsigned int x) CONST; 104int rxvt_popcount (unsigned int x) CONST;
94#endif 105#endif
95 106
96// in range including end 107// in range including end
97#define IN_RANGE_INC(val,beg,end) \ 108#define IN_RANGE_INC(val,beg,end) \
98 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 109 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
99 110
100// in range excluding end 111// in range excluding end
101#define IN_RANGE_EXC(val,beg,end) \ 112#define IN_RANGE_EXC(val,beg,end) \
102 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 113 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
103 114
115// for m >= -n, ensure remainder lies between 0..n-1
116#define MOD(m,n) (((m) + (n)) % (n))
117
104// makes dynamically allocated objects zero-initialised 118// makes dynamically allocated objects zero-initialised
105struct zero_initialized { 119struct zero_initialized
120{
106 void *operator new (size_t s); 121 void *operator new (size_t s);
107 void operator delete (void *p, size_t s); 122 void operator delete (void *p, size_t s);
108}; 123};
109 124
110/* simplevec taken (and heavily modified), from: 125/* simplevec taken (and heavily modified), from:
111 * 126 *
112 * MICO --- a free CORBA implementation 127 * MICO --- a free CORBA implementation
113 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 128 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
114 */ 129 */
115template<class T> 130template<class T>
116struct simplevec { 131struct simplevec
132{
117 typedef T* iterator; 133 typedef T* iterator;
118 typedef const T* const_iterator; 134 typedef const T* const_iterator;
119 typedef unsigned long size_type; 135 typedef unsigned long size_type;
120 136
121private: 137private:
… …
376 } 392 }
377}; 393};
378 394
379#if 0 395#if 0
380template<typename T> 396template<typename T>
381struct rxvt_vec : simplevec<void *> { 397struct rxvt_vec : simplevec<void *>
398{
382 typedef T *iterator; 399 typedef T *iterator;
383 400
384 void push_back (T d) { simplevec<void *>::push_back ((void *)d); } 401 void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
385 T pop_back () { return (T*)simplevec<void *>::pop_back (); } 402 T pop_back () { return (T*)simplevec<void *>::pop_back (); }
386 void erase (int i) { erase (begin () + i); } 403 void erase (int i) { erase (begin () + i); }
… …
391 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } 408 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
392}; 409};
393#endif 410#endif
394 411
395template<typename T> 412template<typename T>
396struct auto_ptr { 413struct auto_ptr
414{
397 T *p; 415 T *p;
398 416
399 auto_ptr () : p (0) { } 417 auto_ptr () : p (0) { }
400 auto_ptr (T *a) : p (a) { } 418 auto_ptr (T *a) : p (a) { }
401 419

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