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/cvs/rxvt-unicode/src/rxvtutil.h
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Comparing rxvt-unicode/src/rxvtutil.h (file contents):
Revision 1.26 by root, Tue Jan 31 16:57:35 2006 UTC vs.
Revision 1.34 by root, Sun Dec 2 22:37:14 2007 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
7using namespace std;
6 8
7#define PP_CONCAT_(a, b) a ## b 9#define PP_CONCAT_(a, b) a ## b
8#define PP_CONCAT(a, b) PP_CONCAT_(a, b) 10#define PP_CONCAT(a, b) PP_CONCAT_(a, b)
9#define PP_STRINGIFY_(a) #a 11#define PP_STRINGIFY_(a) #a
10#define PP_STRINGIFY(a) PP_STRINGIFY_(a) 12#define PP_STRINGIFY(a) PP_STRINGIFY_(a)
11 13
12// actually, some gcc-3.x versions work, too 14#define HAVE_GCC_BUILTINS (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ == 4))
13#define HAVE_GCC_BUILTINS (__GNUC__ >= 4)
14 15
15#ifndef __attribute__
16# if __GNUC__ 16#if __GNUC__ >= 4
17# if (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || (__GNUC__ < 2) 17# define rxvt_attribute(x) __attribute__(x)
18# define __attribute__(x) 18#else
19# endif
20# endif
21# define __attribute__(x) 19# define rxvt_attribute(x)
22#endif 20#endif
23 21
24#define NORETURN __attribute__ ((noreturn)) 22#define NORETURN rxvt_attribute ((noreturn))
25#define UNUSED __attribute__ ((unused)) 23#define UNUSED rxvt_attribute ((unused))
26#define CONST __attribute__ ((const)) 24#define CONST rxvt_attribute ((const))
27 25
28// increases code size unless -fno-enforce-eh-specs 26// increases code size unless -fno-enforce-eh-specs
29#if __GNUC__ 27#if __GNUC__
30# define NOTHROW 28# define NOTHROW
31# define THROW(x) 29# define THROW(x)
… …
64T lerp (T a, U b, P p) 62T lerp (T a, U b, P p)
65{ 63{
66 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100; 64 return (long(a) * long(100 - p) + long(b) * long(p) + 50) / 100;
67} 65}
68 66
67template <typename I, typename T>
68I find (I first, I last, const T& value)
69{
70 while (first != last && *first != value)
71 ++first;
72
73 return first;
74}
75
76// return a very temporary (and never deallocated) buffer. keep small.
77void *rxvt_temp_buf (int len);
78
79template<typename T>
80static inline T *
81rxvt_temp_buf (int len)
82{
83 return (T *)rxvt_temp_buf (len * sizeof (T));
84}
85
69// some bit functions, xft fuck me plenty 86// some bit functions, xft fuck me plenty
70#if HAVE_GCC_BUILTINS 87#if HAVE_GCC_BUILTINS
71static inline int ctz (unsigned int x) CONST { return __builtin_ctz (x); } 88static inline int ctz (unsigned int x) { return __builtin_ctz (x); }
72static inline int popcount (unsigned int x) CONST { return __builtin_popcount (x); } 89static inline int popcount (unsigned int x) { return __builtin_popcount (x); }
73#else 90#else
74// count trailing zero bits and count # of one bits 91// count trailing zero bits and count # of one bits
75int ctz (unsigned int x) CONST; 92int ctz (unsigned int x) CONST;
76int popcount (unsigned int x) CONST; 93int popcount (unsigned int x) CONST;
77#endif 94#endif
… …
89 void *operator new (size_t s); 106 void *operator new (size_t s);
90 void operator delete (void *p, size_t s); 107 void operator delete (void *p, size_t s);
91}; 108};
92 109
93/* simplevec taken (and heavily modified), from: 110/* simplevec taken (and heavily modified), from:
94 * 111 *
95 * MICO --- a free CORBA implementation 112 * MICO --- a free CORBA implementation
96 * Copyright (C) 1997-98 Kay Roemer & Arno Puder 113 * Copyright (C) 1997-98 Kay Roemer & Arno Puder
97 */ 114 */
98template<class T> 115template<class T>
99struct simplevec { 116struct simplevec {
… …
347 364
348template<typename T> 365template<typename T>
349struct vector : simplevec<T> 366struct vector : simplevec<T>
350{ }; 367{ };
351 368
369struct stringvec : simplevec<char *>
370{
371 ~stringvec ()
372 {
373 for (char **c = begin (); c != end (); c++)
374 free (*c);
375 }
376};
377
352#if 0 378#if 0
353template<typename T> 379template<typename T>
354struct rxvt_vec : simplevec<void *> { 380struct rxvt_vec : simplevec<void *> {
355 typedef T *iterator; 381 typedef T *iterator;
356 382
… …
363 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } 389 T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); }
364 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } 390 const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); }
365}; 391};
366#endif 392#endif
367 393
368template <typename I, typename T>
369I find (I first, I last, const T& value)
370{
371 while (first != last && *first != value)
372 ++first;
373
374 return first;
375}
376
377template<typename T> 394template<typename T>
378struct auto_ptr { 395struct auto_ptr {
379 T *p; 396 T *p;
380 397
381 auto_ptr () : p (0) { } 398 auto_ptr () : p (0) { }
… …
432 } 449 }
433}; 450};
434 451
435typedef auto_ptr<char> auto_str; 452typedef auto_ptr<char> auto_str;
436 453
437struct stringvec : simplevec<char *>
438{
439 ~stringvec ()
440 {
441 for (char **c = begin (); c != end (); c++)
442 free (*c);
443 }
444};
445
446// return a very temporary (and never deallocated) buffer. keep small.
447void *rxvt_temp_buf (int len);
448
449template<typename T>
450static inline T *
451rxvt_temp_buf (int len)
452{
453 return (T *)rxvt_temp_buf (len * sizeof (T));
454}
455
456#endif 454#endif
457 455

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