1 |
root |
1.1 |
#ifndef RXVT_UTIL_H |
2 |
|
|
#define RXVT_UTIL_H |
3 |
|
|
|
4 |
root |
1.4 |
#include <cstring> |
5 |
|
|
|
6 |
root |
1.15 |
#define PP_CONCAT_(a, b) a ## b |
7 |
|
|
#define PP_CONCAT(a, b) PP_CONCAT_(a, b) |
8 |
|
|
#define PP_STRINGIFY_(a) #a |
9 |
|
|
#define PP_STRINGIFY(a) PP_STRINGIFY_(a) |
10 |
|
|
|
11 |
root |
1.1 |
extern class byteorder { |
12 |
|
|
static unsigned int e; // at least 32 bits |
13 |
|
|
public: |
14 |
|
|
byteorder (); |
15 |
|
|
|
16 |
|
|
static bool big_endian () { return e == 0x11223344; }; |
17 |
|
|
static bool network () { return e == 0x11223344; }; |
18 |
|
|
static bool little_endian () { return e == 0x44332211; }; |
19 |
|
|
static bool vax () { return e == 0x44332211; }; |
20 |
|
|
} byteorder; |
21 |
|
|
|
22 |
root |
1.13 |
template<typename T, typename U> static inline T min (T a, U b) { return a < (T)b ? a : (T)b; } |
23 |
|
|
template<typename T, typename U> static inline void min_it (T &a, U b) { a = a < (T)b ? a : (T)b; } |
24 |
|
|
template<typename T, typename U> static inline T max (T a, U b) { return a > (T)b ? a : (T)b; } |
25 |
|
|
template<typename T, typename U> static inline void max_it (T &a, U b) { a = a > (T)b ? a : (T)b; } |
26 |
|
|
|
27 |
|
|
template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? a : v >(T)b ? b : v; } |
28 |
|
|
template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = v < (T)a ? a : v >(T)b ? b : v; } |
29 |
|
|
|
30 |
root |
1.14 |
template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } |
31 |
root |
1.8 |
|
32 |
root |
1.11 |
// in range including end |
33 |
|
|
#define IN_RANGE_INC(val,beg,end) \ |
34 |
root |
1.9 |
((unsigned int)(val) - (unsigned int)(beg) <= (unsigned int)(end) - (unsigned int)(beg)) |
35 |
root |
1.1 |
|
36 |
root |
1.11 |
// in range excluding end |
37 |
|
|
#define IN_RANGE_EXC(val,beg,end) \ |
38 |
|
|
((unsigned int)(val) - (unsigned int)(beg) < (unsigned int)(end) - (unsigned int)(beg)) |
39 |
|
|
|
40 |
root |
1.4 |
struct zero_initialized { |
41 |
|
|
void *operator new (size_t s); |
42 |
|
|
void operator delete (void *p, size_t s); |
43 |
|
|
}; |
44 |
|
|
|
45 |
|
|
/* simplevec taken (and heavily modified), from: |
46 |
|
|
* |
47 |
|
|
* MICO --- a free CORBA implementation |
48 |
|
|
* Copyright (C) 1997-98 Kay Roemer & Arno Puder |
49 |
|
|
*/ |
50 |
|
|
template<class T> |
51 |
|
|
struct simplevec { |
52 |
|
|
typedef T* iterator; |
53 |
|
|
typedef const T* const_iterator; |
54 |
|
|
typedef unsigned long size_type; |
55 |
|
|
|
56 |
|
|
private: |
57 |
|
|
size_type _last, _size; |
58 |
|
|
T *_buf; |
59 |
|
|
|
60 |
|
|
public: |
61 |
|
|
const_iterator begin () const |
62 |
|
|
{ |
63 |
root |
1.8 |
return &_buf[0]; |
64 |
root |
1.4 |
} |
65 |
|
|
iterator begin () |
66 |
|
|
{ |
67 |
root |
1.8 |
return &_buf[0]; |
68 |
root |
1.4 |
} |
69 |
|
|
const_iterator end () const |
70 |
|
|
{ |
71 |
root |
1.8 |
return &_buf[_last]; |
72 |
root |
1.4 |
} |
73 |
|
|
iterator end () |
74 |
|
|
{ |
75 |
root |
1.8 |
return &_buf[_last]; |
76 |
root |
1.4 |
} |
77 |
|
|
size_type capacity () const |
78 |
|
|
{ |
79 |
root |
1.8 |
return _size; |
80 |
root |
1.4 |
} |
81 |
|
|
size_type size () const |
82 |
|
|
{ |
83 |
root |
1.8 |
return _last; |
84 |
root |
1.4 |
} |
85 |
|
|
|
86 |
|
|
private: |
87 |
|
|
static T *alloc (size_type n) |
88 |
|
|
{ |
89 |
root |
1.8 |
return (T *)::operator new ((size_t) (n * sizeof (T))); |
90 |
root |
1.4 |
} |
91 |
|
|
static void dealloc (T *buf) |
92 |
|
|
{ |
93 |
root |
1.8 |
if (buf) |
94 |
|
|
::operator delete (buf); |
95 |
root |
1.4 |
} |
96 |
|
|
|
97 |
|
|
void reserve (iterator where, size_type n) |
98 |
|
|
{ |
99 |
root |
1.8 |
if (_last + n <= _size) { |
100 |
|
|
memmove (where+n, where, (end ()-where)*sizeof (T)); |
101 |
|
|
} else { |
102 |
|
|
size_type sz = _last+n; |
103 |
|
|
sz = (_size == 0) ? max (sz, 5) : max (sz, 2*_size); |
104 |
|
|
T *nbuf = alloc (sz); |
105 |
|
|
if (_buf) { |
106 |
|
|
memcpy (nbuf, begin (), (where-begin ())*sizeof (T)); |
107 |
|
|
memcpy (nbuf + (where-begin ()) + n, where, |
108 |
|
|
(end ()-where)*sizeof (T)); |
109 |
|
|
dealloc (_buf); |
110 |
|
|
} |
111 |
|
|
_buf = nbuf; |
112 |
|
|
_size = sz; |
113 |
|
|
} |
114 |
root |
1.4 |
} |
115 |
|
|
|
116 |
|
|
public: |
117 |
|
|
void reserve (size_type sz) |
118 |
|
|
{ |
119 |
root |
1.8 |
if (_size < sz) { |
120 |
|
|
sz = (_size == 0) ? max (sz, 5) : max (sz, 2*_size); |
121 |
|
|
T *nbuf = alloc (sz); |
122 |
|
|
if (_buf) { |
123 |
|
|
memcpy (nbuf, begin (), size ()*sizeof (T)); |
124 |
|
|
dealloc (_buf); |
125 |
|
|
} |
126 |
|
|
_buf = nbuf; |
127 |
|
|
_size = sz; |
128 |
|
|
} |
129 |
root |
1.4 |
} |
130 |
|
|
simplevec () |
131 |
|
|
: _last(0), _size(0), _buf(0) |
132 |
|
|
{ |
133 |
|
|
} |
134 |
|
|
simplevec (size_type n, const T& t = T ()) |
135 |
|
|
: _last(0), _size(0), _buf(0) |
136 |
|
|
{ |
137 |
root |
1.8 |
insert (begin (), n, t); |
138 |
root |
1.4 |
} |
139 |
|
|
simplevec (const_iterator first, const_iterator last) |
140 |
|
|
: _last(0), _size(0), _buf(0) |
141 |
|
|
{ |
142 |
root |
1.8 |
insert (begin (), first, last); |
143 |
root |
1.4 |
} |
144 |
|
|
simplevec (const simplevec<T> &v) |
145 |
|
|
: _last(0), _size(0), _buf(0) |
146 |
|
|
{ |
147 |
root |
1.8 |
reserve (v._last); |
148 |
|
|
memcpy (_buf, v.begin (), v.size ()*sizeof (T)); |
149 |
|
|
_last = v._last; |
150 |
root |
1.4 |
} |
151 |
|
|
simplevec<T> &operator= (const simplevec<T> &v) |
152 |
|
|
{ |
153 |
root |
1.8 |
if (this != &v) { |
154 |
|
|
_last = 0; |
155 |
|
|
reserve (v._last); |
156 |
|
|
memcpy (_buf, v.begin (), v.size ()*sizeof (T)); |
157 |
|
|
_last = v._last; |
158 |
|
|
} |
159 |
root |
1.4 |
return *this; |
160 |
|
|
} |
161 |
|
|
~simplevec () |
162 |
|
|
{ |
163 |
root |
1.8 |
dealloc (_buf); |
164 |
root |
1.4 |
} |
165 |
|
|
const T &front () const |
166 |
|
|
{ |
167 |
root |
1.8 |
//ministl_assert (size () > 0); |
168 |
|
|
return _buf[0]; |
169 |
root |
1.4 |
} |
170 |
|
|
T &front () |
171 |
|
|
{ |
172 |
root |
1.8 |
//ministl_assert (size () > 0); |
173 |
|
|
return _buf[0]; |
174 |
root |
1.4 |
} |
175 |
|
|
const T &back () const |
176 |
|
|
{ |
177 |
root |
1.8 |
//ministl_assert (size () > 0); |
178 |
|
|
return _buf[_last-1]; |
179 |
root |
1.4 |
} |
180 |
|
|
T &back () |
181 |
|
|
{ |
182 |
root |
1.8 |
//ministl_assert (size () > 0); |
183 |
|
|
return _buf[_last-1]; |
184 |
root |
1.4 |
} |
185 |
|
|
bool empty () const |
186 |
|
|
{ |
187 |
root |
1.8 |
return _last == 0; |
188 |
root |
1.4 |
} |
189 |
|
|
void clear () |
190 |
|
|
{ |
191 |
root |
1.8 |
_last = 0; |
192 |
root |
1.4 |
} |
193 |
|
|
void push_back (const T &t) |
194 |
|
|
{ |
195 |
root |
1.8 |
reserve (_last+1); |
196 |
|
|
*end () = t; |
197 |
|
|
++_last; |
198 |
root |
1.4 |
} |
199 |
|
|
void push_back (T &t) |
200 |
|
|
{ |
201 |
root |
1.8 |
reserve (_last+1); |
202 |
|
|
*end () = t; |
203 |
|
|
++_last; |
204 |
root |
1.4 |
} |
205 |
|
|
void pop_back () |
206 |
|
|
{ |
207 |
root |
1.8 |
//ministl_assert (size () > 0); |
208 |
|
|
--_last; |
209 |
root |
1.4 |
} |
210 |
|
|
const T &operator[] (size_type idx) const |
211 |
|
|
{ |
212 |
root |
1.8 |
//ministl_assert (idx < size ()); |
213 |
|
|
return _buf[idx]; |
214 |
root |
1.4 |
} |
215 |
|
|
T &operator[] (size_type idx) |
216 |
|
|
{ |
217 |
root |
1.8 |
//ministl_assert (idx < size ()); |
218 |
|
|
return _buf[idx]; |
219 |
root |
1.4 |
} |
220 |
|
|
iterator insert (iterator pos, const T &t) |
221 |
|
|
{ |
222 |
root |
1.8 |
//ministl_assert (pos <= end ()); |
223 |
|
|
long at = pos - begin (); |
224 |
|
|
reserve (pos, 1); |
225 |
|
|
pos = begin ()+at; |
226 |
|
|
*pos = t; |
227 |
|
|
++_last; |
228 |
|
|
return pos; |
229 |
root |
1.4 |
} |
230 |
|
|
iterator insert (iterator pos, const_iterator first, const_iterator last) |
231 |
|
|
{ |
232 |
|
|
//ministl_assert (pos <= end ()); |
233 |
root |
1.8 |
long n = last - first; |
234 |
|
|
long at = pos - begin (); |
235 |
|
|
if (n > 0) { |
236 |
|
|
reserve (pos, n); |
237 |
|
|
pos = begin ()+at; |
238 |
|
|
memcpy (pos, first, (last-first)*sizeof (T)); |
239 |
|
|
_last += n; |
240 |
|
|
} |
241 |
|
|
return pos; |
242 |
root |
1.4 |
} |
243 |
|
|
iterator insert (iterator pos, size_type n, const T &t) |
244 |
|
|
{ |
245 |
|
|
//ministl_assert (pos <= end ()); |
246 |
root |
1.8 |
long at = pos - begin (); |
247 |
|
|
if (n > 0) { |
248 |
|
|
reserve (pos, n); |
249 |
|
|
pos = begin ()+at; |
250 |
|
|
for (int i = 0; i < n; ++i) |
251 |
|
|
pos[i] = t; |
252 |
|
|
_last += n; |
253 |
|
|
} |
254 |
|
|
return pos; |
255 |
root |
1.4 |
} |
256 |
|
|
void erase (iterator first, iterator last) |
257 |
|
|
{ |
258 |
root |
1.8 |
if (last != first) { |
259 |
|
|
memmove (first, last, (end ()-last)*sizeof (T)); |
260 |
|
|
_last -= last - first; |
261 |
|
|
} |
262 |
root |
1.4 |
} |
263 |
|
|
void erase (iterator pos) |
264 |
|
|
{ |
265 |
|
|
if (pos != end ()) { |
266 |
root |
1.8 |
memmove (pos, pos+1, (end ()- (pos+1))*sizeof (T)); |
267 |
root |
1.4 |
--_last; |
268 |
|
|
} |
269 |
|
|
} |
270 |
root |
1.8 |
void swap (simplevec<T> &t) |
271 |
|
|
{ |
272 |
|
|
::swap(_last, t._last); |
273 |
|
|
::swap(_size, t._size); |
274 |
|
|
::swap(_buf, t._buf); |
275 |
|
|
} |
276 |
root |
1.4 |
}; |
277 |
|
|
|
278 |
|
|
template<class T> |
279 |
|
|
bool operator== (const simplevec<T> &v1, const simplevec<T> &v2) |
280 |
|
|
{ |
281 |
|
|
if (v1.size () != v2.size ()) |
282 |
root |
1.8 |
return false; |
283 |
root |
1.4 |
return !v1.size () || !memcmp (&v1[0], &v2[0], v1.size ()*sizeof (T)); |
284 |
|
|
} |
285 |
|
|
|
286 |
|
|
template<class T> |
287 |
|
|
bool operator< (const simplevec<T> &v1, const simplevec<T> &v2) |
288 |
|
|
{ |
289 |
|
|
unsigned long minlast = min (v1.size (), v2.size ()); |
290 |
|
|
for (unsigned long i = 0; i < minlast; ++i) { |
291 |
|
|
if (v1[i] < v2[i]) |
292 |
root |
1.8 |
return true; |
293 |
|
|
if (v2[i] < v1[i]) |
294 |
|
|
return false; |
295 |
root |
1.4 |
} |
296 |
|
|
return v1.size () < v2.size (); |
297 |
|
|
} |
298 |
|
|
|
299 |
root |
1.1 |
|
300 |
|
|
template<typename T> |
301 |
|
|
struct vector : simplevec<T> |
302 |
|
|
{ }; |
303 |
|
|
|
304 |
|
|
#if 0 |
305 |
|
|
template<typename T> |
306 |
|
|
struct rxvt_vec : simplevec<void *> { |
307 |
|
|
typedef T *iterator; |
308 |
|
|
|
309 |
|
|
void push_back (T d) { simplevec<void *>::push_back ((void *)d); } |
310 |
|
|
T pop_back () { return (T*)simplevec<void *>::pop_back (); } |
311 |
|
|
void erase (int i) { erase (begin () + i); } |
312 |
|
|
void erase (iterator i) { simplevec<void *>::erase ((void **)i); } |
313 |
|
|
iterator begin () const { return (iterator)simplevec<void *>::begin (); } |
314 |
|
|
iterator end () const { return (iterator)simplevec<void *>::end (); } |
315 |
|
|
T &operator [] (int i) { return * (T *) (& ((* (simplevec<void *> *)this)[i])); } |
316 |
|
|
const T &operator [] (int i) const { return * (const T *) (& ((* (const simplevec<void *> *)this)[i])); } |
317 |
|
|
}; |
318 |
|
|
#endif |
319 |
|
|
|
320 |
|
|
template <typename I, typename T> |
321 |
|
|
I find (I first, I last, const T& value) |
322 |
|
|
{ |
323 |
|
|
while (first != last && *first != value) |
324 |
|
|
++first; |
325 |
|
|
|
326 |
|
|
return first; |
327 |
|
|
} |
328 |
|
|
|
329 |
|
|
template<typename T> |
330 |
|
|
struct auto_ptr { |
331 |
|
|
T *p; |
332 |
|
|
|
333 |
|
|
auto_ptr () : p (0) { } |
334 |
|
|
auto_ptr (T *a) : p (a) { } |
335 |
|
|
|
336 |
|
|
auto_ptr (auto_ptr<T> &a) |
337 |
|
|
{ |
338 |
|
|
p = a.p; |
339 |
|
|
a.p = 0; |
340 |
|
|
} |
341 |
|
|
|
342 |
|
|
template<typename A> |
343 |
|
|
auto_ptr (auto_ptr<A> &a) |
344 |
|
|
{ |
345 |
|
|
p = a.p; |
346 |
|
|
a.p = 0; |
347 |
|
|
} |
348 |
|
|
|
349 |
|
|
~auto_ptr () |
350 |
|
|
{ |
351 |
|
|
delete p; |
352 |
|
|
} |
353 |
|
|
|
354 |
|
|
// void because it makes sense in our context |
355 |
|
|
void operator = (T *a) |
356 |
|
|
{ |
357 |
|
|
delete p; |
358 |
|
|
p = a; |
359 |
|
|
} |
360 |
|
|
|
361 |
|
|
void operator = (auto_ptr &a) |
362 |
|
|
{ |
363 |
|
|
*this = a.p; |
364 |
|
|
a.p = 0; |
365 |
|
|
} |
366 |
|
|
|
367 |
|
|
template<typename A> |
368 |
|
|
void operator = (auto_ptr<A> &a) |
369 |
|
|
{ |
370 |
|
|
*this = a.p; |
371 |
|
|
a.p = 0; |
372 |
|
|
} |
373 |
|
|
|
374 |
|
|
operator T * () const { return p; } |
375 |
|
|
|
376 |
|
|
T *operator -> () const { return p; } |
377 |
|
|
T &operator * () const { return *p; } |
378 |
|
|
|
379 |
|
|
T *get () |
380 |
|
|
{ |
381 |
|
|
T *r = p; |
382 |
|
|
p = 0; |
383 |
|
|
return r; |
384 |
|
|
} |
385 |
|
|
}; |
386 |
|
|
|
387 |
|
|
typedef auto_ptr<char> auto_str; |
388 |
|
|
|
389 |
|
|
struct stringvec : simplevec<char *> |
390 |
|
|
{ |
391 |
|
|
~stringvec () |
392 |
|
|
{ |
393 |
|
|
for (char **c = begin (); c != end (); c++) |
394 |
|
|
delete [] *c; |
395 |
|
|
} |
396 |
|
|
}; |
397 |
root |
1.3 |
|
398 |
root |
1.1 |
#endif |
399 |
|
|
|