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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.29 by ayin, Wed Oct 31 09:55:24 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#ifndef __attribute__
17# if __GNUC__ 18#if __GNUC__ >= 4
18# if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2) 19# define rxvt_attribute(x) __attribute__(x)
19# define __attribute__(x) 20# define expect(expr,value) __builtin_expect ((expr),(value))
20# endif 21#else
21# endif
22# define __attribute__(x) 22# define rxvt_attribute(x)
23# define expect(expr,value) (expr)
23#endif 24#endif
24 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)
31
25#define NORETURN __attribute__ ((noreturn)) 32#define NORETURN rxvt_attribute ((noreturn))
26#define UNUSED __attribute__ ((unused)) 33#define UNUSED rxvt_attribute ((unused))
27#define CONST __attribute__ ((const)) 34#define CONST rxvt_attribute ((const))
28 35
29// increases code size unless -fno-enforce-eh-specs 36// increases code size unless -fno-enforce-eh-specs
30#if __GNUC__ 37#if __GNUC__
31# define NOTHROW 38# define NOTHROW
32# define THROW(x) 39# define THROW(x)
… …
65T lerp (T a, U b, P p) 72T lerp (T a, U b, P p)
66{ 73{
67 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100; 74 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
68} 75}
69 76
77template <typename I, typename T>
78I find (I first, I last, const T& value)
79{
80 while (first != last && *first != value)
81 ++first;
82
83 return first;
84}
85
86// return a very temporary (and never deallocated) buffer. keep small.
87void *rxvt_temp_buf (int len);
88
89template<typename T>
90static inline T *
91rxvt_temp_buf (int len)
92{
93 return (T *)rxvt_temp_buf (len * sizeof (T));
94}
95
70// some bit functions, xft fuck me plenty 96// some bit functions, xft fuck me plenty
71#if HAVE_GCC_BUILTINS 97#if HAVE_GCC_BUILTINS
98/* netbsd stupidly defines popcount itself and puts it into string.h */
72static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); } 99static inline int rxvt_ctz (unsigned int x) { return __builtin_ctz (x); }
73static inline int popcount (unsigned int x) CONST { return __builtin_popcount (x); } 100static inline int rxvt_popcount (unsigned int x) { return __builtin_popcount (x); }
74#else 101#else
75// count trailing zero bits and count # of one bits 102// count trailing zero bits and count # of one bits
76int ctz (unsigned int x) CONST; 103int rxvt_ctz (unsigned int x) CONST;
77int popcount (unsigned int x) CONST; 104int rxvt_popcount (unsigned int x) CONST;
78#endif 105#endif
79 106
80// in range including end 107// in range including end
81#define IN_RANGE_INC(val,beg,end) \ 108#define IN_RANGE_INC(val,beg,end) \
82 ((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))
83 110
84// in range excluding end 111// in range excluding end
85#define IN_RANGE_EXC(val,beg,end) \ 112#define IN_RANGE_EXC(val,beg,end) \
86 ((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))
87 114
115// for m >= -n, ensure remainder lies between 0..n-1
116#define MOD(m,n) (((m) + (n)) % (n))
117
88// makes dynamically allocated objects zero-initialised 118// makes dynamically allocated objects zero-initialised
89struct zero_initialized { 119struct zero_initialized
120{
90 void *operator new (size_t s); 121 void *operator new (size_t s);
91 void operator delete (void *p, size_t s); 122 void operator delete (void *p, size_t s);
92}; 123};
93 124
94/* simplevec taken (and heavily modified), from: 125/* simplevec taken (and heavily modified), from:
95 * 126 *
96 * MICO --- a free CORBA implementation 127 * MICO --- a free CORBA implementation
97 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 128 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
98 */ 129 */
99template<class T> 130template<class T>
100struct simplevec { 131struct simplevec
132{
101 typedef T* iterator; 133 typedef T* iterator;
102 typedef const T* const_iterator; 134 typedef const T* const_iterator;
103 typedef unsigned long size_type; 135 typedef unsigned long size_type;
104 136
105private: 137private:
… …
346} 378}
347 379
348 380
349template<typename T> 381template<typename T>
350struct vector : simplevec<T> 382struct vector : simplevec<T>
351{ }; 383{
384};
385
386struct stringvec : simplevec<char *>
387{
388 ~stringvec ()
389 {
390 for (char **c = begin (); c != end (); c++)
391 free (*c);
392 }
393};
352 394
353#if 0 395#if 0
354template<typename T> 396template<typename T>
355struct rxvt_vec : simplevec<void *> { 397struct rxvt_vec : simplevec<void *>
398{
356 typedef T *iterator; 399 typedef T *iterator;
357 400
358 void push_back (T d) { simplevec<void *>::push_back ((void *)d); } 401 void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
359 T pop_back () { return (T*)simplevec<void *>::pop_back (); } 402 T pop_back () { return (T*)simplevec<void *>::pop_back (); }
360 void erase (int i) { erase (begin () + i); } 403 void erase (int i) { erase (begin () + i); }
… …
364 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } 407 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); }
365 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])); }
366}; 409};
367#endif 410#endif
368 411
369template <typename I, typename T>
370I find (I first, I last, const T& value)
371{
372 while (first != last && *first != value)
373 ++first;
374
375 return first;
376}
377
378template<typename T> 412template<typename T>
379struct auto_ptr { 413struct auto_ptr
414{
380 T *p; 415 T *p;
381 416
382 auto_ptr () : p (0) { } 417 auto_ptr () : p (0) { }
383 auto_ptr (T *a) : p (a) { } 418 auto_ptr (T *a) : p (a) { }
384 419
… …
433 } 468 }
434}; 469};
435 470
436typedef auto_ptr<char> auto_str; 471typedef auto_ptr<char> auto_str;
437 472
438struct stringvec : simplevec<char *>
439{
440 ~stringvec ()
441 {
442 for (char **c = begin (); c != end (); c++)
443 free (*c);
444 }
445};
446
447// return a very temporary (and never deallocated) buffer. keep small.
448void *rxvt_temp_buf (int len);
449
450template<typename T>
451static inline T *
452rxvt_temp_buf (int len)
453{
454 return (T *)rxvt_temp_buf (len * sizeof (T));
455}
456
457#endif 473#endif
458 474

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