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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.30 by root, Tue Nov 20 17:44:44 2007 UTC vs.
Revision 1.37 by root, Mon Jul 21 16:51:31 2008 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#if __GNUC__ >= 3 16#if __GNUC__ >= 4
17# define rxvt_attribute(x) __attribute__(x) 17# define rxvt_attribute(x) __attribute__(x)
18# define expect(expr,value) __builtin_expect ((expr),(value))
18#else 19#else
19# define rxvt_attribute(x) 20# define rxvt_attribute(x)
21# define expect(expr,value) (expr)
20#endif 22#endif
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)
21 29
22#define NORETURN rxvt_attribute ((noreturn)) 30#define NORETURN rxvt_attribute ((noreturn))
23#define UNUSED rxvt_attribute ((unused)) 31#define UNUSED rxvt_attribute ((unused))
24#define CONST rxvt_attribute ((const)) 32#define CONST rxvt_attribute ((const))
25 33
… …
60template<typename T, typename U, typename P> 68template<typename T, typename U, typename P>
61static inline 69static inline
62T lerp (T a, U b, P p) 70T lerp (T a, U b, P p)
63{ 71{
64 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;
73}
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));
65} 92}
66 93
67// some bit functions, xft fuck me plenty 94// some bit functions, xft fuck me plenty
68#if HAVE_GCC_BUILTINS 95#if HAVE_GCC_BUILTINS
69static inline int ctz (unsigned int x) { return __builtin_ctz (x); } 96static inline int ctz (unsigned int x) { return __builtin_ctz (x); }
… …
79 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) 106 ((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg))
80 107
81// in range excluding end 108// in range excluding end
82#define IN_RANGE_EXC(val,beg,end) \ 109#define IN_RANGE_EXC(val,beg,end) \
83 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) 110 ((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg))
111
112// for m >= -n, ensure remainder lies between 0..n-1
113#define MOD(m,n) (((m) + (n)) % (n))
84 114
85// makes dynamically allocated objects zero-initialised 115// makes dynamically allocated objects zero-initialised
86struct zero_initialized { 116struct zero_initialized {
87 void *operator new (size_t s); 117 void *operator new (size_t s);
88 void operator delete (void *p, size_t s); 118 void operator delete (void *p, size_t s);
… …
343} 373}
344 374
345 375
346template<typename T> 376template<typename T>
347struct vector : simplevec<T> 377struct vector : simplevec<T>
348{ }; 378{
379};
380
381struct stringvec : simplevec<char *>
382{
383 ~stringvec ()
384 {
385 for (char **c = begin (); c != end (); c++)
386 free (*c);
387 }
388};
349 389
350#if 0 390#if 0
351template<typename T> 391template<typename T>
352struct rxvt_vec : simplevec<void *> { 392struct rxvt_vec : simplevec<void *> {
353 typedef T *iterator; 393 typedef T *iterator;
… …
361 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } 401 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); }
362 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } 402 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
363}; 403};
364#endif 404#endif
365 405
366template <typename I, typename T>
367I find (I first, I last, const T& value)
368{
369 while (first != last && *first != value)
370 ++first;
371
372 return first;
373}
374
375template<typename T> 406template<typename T>
376struct auto_ptr { 407struct auto_ptr {
377 T *p; 408 T *p;
378 409
379 auto_ptr () : p (0) { } 410 auto_ptr () : p (0) { }
… …
430 } 461 }
431}; 462};
432 463
433typedef auto_ptr<char> auto_str; 464typedef auto_ptr<char> auto_str;
434 465
435struct stringvec : simplevec<char *>
436{
437 ~stringvec ()
438 {
439 for (char **c = begin (); c != end (); c++)
440 free (*c);
441 }
442};
443
444// return a very temporary (and never deallocated) buffer. keep small.
445void *rxvt_temp_buf (int len);
446
447template<typename T>
448static inline T *
449rxvt_temp_buf (int len)
450{
451 return (T *)rxvt_temp_buf (len * sizeof (T));
452}
453
454#endif 466#endif
455 467

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