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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.28 by ayin, Tue Jun 26 10:46:28 2007 UTC vs.
Revision 1.39 by root, Fri Sep 4 15:40:13 2009 UTC

… …
11#define PP_STRINGIFY_(a) #a 11#define PP_STRINGIFY_(a) #a
12#define PP_STRINGIFY(a) PP_STRINGIFY_(a) 12#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
13 13
14#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4)) 14#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
15 15
16#ifndef __attribute__
17# if __GNUC__ 16#if __GNUC__ >= 4
18# if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2) 17# define rxvt_attribute(x) __attribute__(x)
19# define __attribute__(x) 18# define expect(expr,value) __builtin_expect ((expr),(value))
20# endif 19#else
21# endif
22# define __attribute__(x) 20# define rxvt_attribute(x)
21# define expect(expr,value) (expr)
23#endif 22#endif
24 23
24// put into ifs if you are very sure that the expression
25// is mostly true or mosty false. note that these return
26// booleans, not the expression.
27#define expect_false(expr) expect ((expr) != 0, 0)
28#define expect_true(expr) expect ((expr) != 0, 1)
29
25#define NORETURN __attribute__ ((noreturn)) 30#define NORETURN rxvt_attribute ((noreturn))
26#define UNUSED __attribute__ ((unused)) 31#define UNUSED rxvt_attribute ((unused))
27#define CONST __attribute__ ((const)) 32#define CONST rxvt_attribute ((const))
28 33
29// increases code size unless -fno-enforce-eh-specs 34// increases code size unless -fno-enforce-eh-specs
30#if __GNUC__ 35#if __GNUC__
31# define NOTHROW 36# define NOTHROW
32# define THROW(x) 37# define THROW(x)
… …
65T lerp (T a, U b, P p) 70T lerp (T a, U b, P p)
66{ 71{
67 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100; 72 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
68} 73}
69 74
75template <typename I, typename T>
76I find (I first, I last, const T& value)
77{
78 while (first != last && *first != value)
79 ++first;
80
81 return first;
82}
83
84// return a very temporary (and never deallocated) buffer. keep small.
85void *rxvt_temp_buf (int len);
86
87template<typename T>
88static inline T *
89rxvt_temp_buf (int len)
90{
91 return (T *)rxvt_temp_buf (len * sizeof (T));
92}
93
70// some bit functions, xft fuck me plenty 94// some bit functions, xft fuck me plenty
71#if HAVE_GCC_BUILTINS 95#if HAVE_GCC_BUILTINS
96/* netbsd stupidly defines popcount itself and puts it into string.h */
72static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); } 97static inline int rxvt_ctz (unsigned int x) { return __builtin_ctz (x); }
73static inline int popcount (unsigned int x) CONST { return __builtin_popcount (x); } 98static inline int rxvt_popcount (unsigned int x) { return __builtin_popcount (x); }
74#else 99#else
75// count trailing zero bits and count # of one bits 100// count trailing zero bits and count # of one bits
76int ctz (unsigned int x) CONST; 101int rxvt_ctz (unsigned int x) CONST;
77int popcount (unsigned int x) CONST; 102int rxvt_popcount (unsigned int x) CONST;
78#endif 103#endif
79 104
80// in range including end 105// in range including end
81#define IN_RANGE_INC(val,beg,end) \ 106#define IN_RANGE_INC(val,beg,end) \
82 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 107 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
83 108
84// in range excluding end 109// in range excluding end
85#define IN_RANGE_EXC(val,beg,end) \ 110#define IN_RANGE_EXC(val,beg,end) \
86 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 111 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
87 112
113// for m >= -n, ensure remainder lies between 0..n-1
114#define MOD(m,n) (((m) + (n)) % (n))
115
88// makes dynamically allocated objects zero-initialised 116// makes dynamically allocated objects zero-initialised
89struct zero_initialized { 117struct zero_initialized
118{
90 void *operator new (size_t s); 119 void *operator new (size_t s);
91 void operator delete (void *p, size_t s); 120 void operator delete (void *p, size_t s);
92}; 121};
93 122
94/* simplevec taken (and heavily modified), from: 123/* simplevec taken (and heavily modified), from:
95 * 124 *
96 * MICO --- a free CORBA implementation 125 * MICO --- a free CORBA implementation
97 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 126 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
98 */ 127 */
99template<class T> 128template<class T>
100struct simplevec { 129struct simplevec
130{
101 typedef T* iterator; 131 typedef T* iterator;
102 typedef const T* const_iterator; 132 typedef const T* const_iterator;
103 typedef unsigned long size_type; 133 typedef unsigned long size_type;
104 134
105private: 135private:
… …
346} 376}
347 377
348 378
349template<typename T> 379template<typename T>
350struct vector : simplevec<T> 380struct vector : simplevec<T>
351{ }; 381{
382};
383
384struct stringvec : simplevec<char *>
385{
386 ~stringvec ()
387 {
388 for (char **c = begin (); c != end (); c++)
389 free (*c);
390 }
391};
352 392
353#if 0 393#if 0
354template<typename T> 394template<typename T>
355struct rxvt_vec : simplevec<void *> { 395struct rxvt_vec : simplevec<void *>
396{
356 typedef T *iterator; 397 typedef T *iterator;
357 398
358 void push_back (T d) { simplevec<void *>::push_back ((void *)d); } 399 void push_back (T d) { simplevec<void *>::push_back ((void *)d); }
359 T pop_back () { return (T*)simplevec<void *>::pop_back (); } 400 T pop_back () { return (T*)simplevec<void *>::pop_back (); }
360 void erase (int i) { erase (begin () + i); } 401 void erase (int i) { erase (begin () + i); }
… …
364 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } 405 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])); } 406 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
366}; 407};
367#endif 408#endif
368 409
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> 410template<typename T>
379struct auto_ptr { 411struct auto_ptr
412{
380 T *p; 413 T *p;
381 414
382 auto_ptr () : p (0) { } 415 auto_ptr () : p (0) { }
383 auto_ptr (T *a) : p (a) { } 416 auto_ptr (T *a) : p (a) { }
384 417
… …
433 } 466 }
434}; 467};
435 468
436typedef auto_ptr<char> auto_str; 469typedef auto_ptr<char> auto_str;
437 470
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 471#endif
458 472

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