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1/////////////////////////////////////////////////////////////////////////////
2// Name: wx/longlong.h
3// Purpose: declaration of wxLongLong class - best implementation of a 64
4// bit integer for the current platform.
5// Author: Jeffrey C. Ollie <jeff@ollie.clive.ia.us>, Vadim Zeitlin
6// Remarks: this class is not public in wxWindows 2.0! It is intentionally
7// not documented and is for private use only.
8// Modified by:
9// Created: 10.02.99
10// RCS-ID: $Id$
11// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
12// Licence: wxWindows license
13/////////////////////////////////////////////////////////////////////////////
14
15#ifndef _WX_LONGLONG_H
16#define _WX_LONGLONG_H
17
18#ifdef __GNUG__
19 #pragma interface "longlong.h"
20#endif
21
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22#include "wx/defs.h"
23#include "wx/wxchar.h"
24#include "wx/debug.h"
25
26#include <limits.h> // for LONG_MAX
27
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28// ----------------------------------------------------------------------------
29// decide upon which class we will use
30// ----------------------------------------------------------------------------
31
32// to avoid compilation problems on 64bit machines with ambiguous method calls
2f02cb89 33// we will need to define this
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34#undef wxLongLongIsLong
35
36// NB: we #define and not typedef wxLongLong_t because we want to be able to
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37// use 'unsigned wxLongLong_t' as well and because we use "#ifdef
38// wxLongLong_t" below
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39#if defined(SIZEOF_LONG) && (SIZEOF_LONG == 8)
40 #define wxLongLong_t long
41 #define wxLongLongIsLong
42#elif defined(__VISUALC__)
43 #define wxLongLong_t __int64
44#elif defined(__GNUG__)
45 #define wxLongLong_t long long
46#elif defined(__MWERKS__)
47 #if __option(longlong)
48 #define wxLongLong_t long long
49 #else
50 #error "The 64 bit integer support in CodeWarrior has been disabled."
51 #error "See the documentation on the 'longlong' pragma."
52 #endif
53#else
54 #warning "Your compiler does not appear to support 64 bit integers, "\
55 "using emulation class instead."
56 #define wxUSE_LONGLONG_WX 1
57#endif // compiler
58
59// the user may predefine wxUSE_LONGLONG_NATIVE and/or wxUSE_LONGLONG_NATIVE
60// to disable automatic testing (useful for the test program which defines
61// both classes) but by default we only use one class
62#ifndef wxLongLong_t
63 #undef wxUSE_LONGLONG_NATIVE
64 #define wxUSE_LONGLONG_NATIVE 0
65 class WXDLLEXPORT wxLongLongWx;
66 typedef wxLongLongWx wxLongLong;
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67#else
68 // if nothing is defined, use native implementation by default, of course
69 #ifndef wxUSE_LONGLONG_NATIVE
70 #define wxUSE_LONGLONG_NATIVE 1
71 #endif
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72#endif
73
74#ifndef wxUSE_LONGLONG_WX
75 #define wxUSE_LONGLONG_WX 0
76 class WXDLLEXPORT wxLongLongNative;
77 typedef wxLongLongNative wxLongLong;
78#endif
79
80// NB: if both wxUSE_LONGLONG_WX and NATIVE are defined, the user code should
81// typedef wxLongLong as it wants, we don't do it
82
83// ----------------------------------------------------------------------------
84// choose the appropriate class
85// ----------------------------------------------------------------------------
86
87// we use iostream for wxLongLong output
88#include "wx/ioswrap.h"
89
90#if wxUSE_LONGLONG_NATIVE
91
92class WXDLLEXPORT wxLongLongNative
93{
94public:
95 // ctors
96 // default ctor initializes to 0
97 wxLongLongNative() { m_ll = 0; }
98 // from long long
99 wxLongLongNative(wxLongLong_t ll) { m_ll = ll; }
100 // from 2 longs
101 wxLongLongNative(long hi, unsigned long lo)
102 {
103 // assign first to avoid precision loss!
104 m_ll = ((wxLongLong_t) hi) << 32;
105 m_ll |= (wxLongLong_t) lo;
106 }
107
2f02cb89 108 // default copy ctor is ok
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109
110 // no dtor
111
112 // assignment operators
113 // from native 64 bit integer
114 wxLongLongNative& operator=(wxLongLong_t ll)
115 { m_ll = ll; return *this; }
116
117 // assignment operators from wxLongLongNative is ok
118
119 // accessors
120 // get high part
121 long GetHi() const
2f02cb89 122 { return (long)(m_ll >> 32); }
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123 // get low part
124 unsigned long GetLo() const
2f02cb89 125 { return (unsigned long)m_ll; }
8b81872f 126
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127 // get absolute value
128 wxLongLongNative& Abs() { if ( m_ll < 0 ) m_ll = -m_ll; return *this; }
129
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130 // convert to native long long
131 wxLongLong_t GetValue() const { return m_ll; }
132
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133 // convert to long with range checking in the debug mode (only!)
134 long ToLong() const
135 {
136 wxASSERT_MSG( (m_ll >= LONG_MIN) && (m_ll <= LONG_MAX),
137 _T("wxLongLong to long conversion loss of precision") );
138
139 return (long)m_ll;
140 }
141
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142 // don't provide implicit conversion to wxLongLong_t or we will have an
143 // ambiguity for all arithmetic operations
b76b015e 144 //operator wxLongLong_t() const { return m_ll; }
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145
146 // operations
147 // addition
148 wxLongLongNative operator+(const wxLongLongNative& ll) const
149 { return wxLongLongNative(m_ll + ll.m_ll); }
150 wxLongLongNative& operator+=(const wxLongLongNative& ll)
151 { m_ll += ll.m_ll; return *this; }
152
153 wxLongLongNative operator+(const wxLongLong_t ll) const
154 { return wxLongLongNative(m_ll + ll); }
155 wxLongLongNative& operator+=(const wxLongLong_t ll)
156 { m_ll += ll; return *this; }
157
158 // pre increment
159 wxLongLongNative& operator++()
160 { m_ll++; return *this; }
161
162 // post increment
163 wxLongLongNative& operator++(int)
164 { m_ll++; return *this; }
165
166 // negation operator
167 wxLongLongNative operator-() const
168 { return wxLongLongNative(-m_ll); }
169
170 // subtraction
171 wxLongLongNative operator-(const wxLongLongNative& ll) const
172 { return wxLongLongNative(m_ll - ll.m_ll); }
173 wxLongLongNative& operator-=(const wxLongLongNative& ll)
174 { m_ll -= ll.m_ll; return *this; }
175
176 wxLongLongNative operator-(const wxLongLong_t ll) const
177 { return wxLongLongNative(m_ll - ll); }
178 wxLongLongNative& operator-=(const wxLongLong_t ll)
179 { m_ll -= ll; return *this; }
180
181 // pre decrement
182 wxLongLongNative& operator--()
183 { m_ll--; return *this; }
184
185 // post decrement
186 wxLongLongNative& operator--(int)
187 { m_ll--; return *this; }
188
189 // shifts
190 // left shift
191 wxLongLongNative operator<<(int shift) const
192 { return wxLongLongNative(m_ll << shift);; }
193 wxLongLongNative& operator<<=(int shift)
194 { m_ll <<= shift; return *this; }
195
196 // right shift
197 wxLongLongNative operator>>(int shift) const
198 { return wxLongLongNative(m_ll >> shift);; }
199 wxLongLongNative& operator>>=(int shift)
200 { m_ll >>= shift; return *this; }
201
202 // bitwise operators
203 wxLongLongNative operator&(const wxLongLongNative& ll) const
204 { return wxLongLongNative(m_ll & ll.m_ll); }
205 wxLongLongNative& operator&=(const wxLongLongNative& ll)
206 { m_ll &= ll.m_ll; return *this; }
207
208 wxLongLongNative operator|(const wxLongLongNative& ll) const
209 { return wxLongLongNative(m_ll | ll.m_ll); }
210 wxLongLongNative& operator|=(const wxLongLongNative& ll)
211 { m_ll |= ll.m_ll; return *this; }
212
213 wxLongLongNative operator^(const wxLongLongNative& ll) const
214 { return wxLongLongNative(m_ll ^ ll.m_ll); }
215 wxLongLongNative& operator^=(const wxLongLongNative& ll)
216 { m_ll ^= ll.m_ll; return *this; }
217
b76b015e 218 // multiplication/division
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219 wxLongLongNative operator*(const wxLongLongNative& ll) const
220 { return wxLongLongNative(m_ll * ll.m_ll); }
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221 wxLongLongNative operator*(long l) const
222 { return wxLongLongNative(m_ll * l); }
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223 wxLongLongNative& operator*=(const wxLongLongNative& ll)
224 { m_ll *= ll.m_ll; return *this; }
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225 wxLongLongNative& operator*=(long l)
226 { m_ll *= l; return *this; }
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227
228 wxLongLongNative operator/(const wxLongLongNative& ll) const
229 { return wxLongLongNative(m_ll / ll.m_ll); }
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230 wxLongLongNative operator/(long l) const
231 { return wxLongLongNative(m_ll / l); }
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232 wxLongLongNative& operator/=(const wxLongLongNative& ll)
233 { m_ll /= ll.m_ll; return *this; }
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234 wxLongLongNative& operator/=(long l)
235 { m_ll /= l; return *this; }
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236
237 wxLongLongNative operator%(const wxLongLongNative& ll) const
238 { return wxLongLongNative(m_ll % ll.m_ll); }
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239 wxLongLongNative operator%(long l) const
240 { return wxLongLongNative(m_ll % l); }
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241
242 // comparison
243 bool operator==(const wxLongLongNative& ll) const
244 { return m_ll == ll.m_ll; }
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245 bool operator==(long l) const
246 { return m_ll == l; }
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247 bool operator!=(const wxLongLongNative& ll) const
248 { return m_ll != ll.m_ll; }
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249 bool operator!=(long l) const
250 { return m_ll != l; }
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251 bool operator<(const wxLongLongNative& ll) const
252 { return m_ll < ll.m_ll; }
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253 bool operator<(long l) const
254 { return m_ll < l; }
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255 bool operator>(const wxLongLongNative& ll) const
256 { return m_ll > ll.m_ll; }
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257 bool operator>(long l) const
258 { return m_ll > l; }
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259 bool operator<=(const wxLongLongNative& ll) const
260 { return m_ll <= ll.m_ll; }
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261 bool operator<=(long l) const
262 { return m_ll <= l; }
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263 bool operator>=(const wxLongLongNative& ll) const
264 { return m_ll >= ll.m_ll; }
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265 bool operator>=(long l) const
266 { return m_ll >= l; }
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267
268 // miscellaneous
269 // conversion to byte array: returns a pointer to static buffer!
270 void *asArray() const;
271
fcc3d7cb 272#if wxUSE_STD_IOSTREAM
8b81872f 273 // input/output
162b0c3b 274 friend ostream& operator<<(ostream&, const wxLongLongNative&);
fcc3d7cb 275#endif
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276
277private:
278 wxLongLong_t m_ll;
279};
280
281#endif // wxUSE_LONGLONG_NATIVE
282
283#if wxUSE_LONGLONG_WX
284
285class WXDLLEXPORT wxLongLongWx
286{
287public:
288 // ctors
289 // default ctor initializes to 0
290 wxLongLongWx() { m_lo = m_hi = 0; }
291 // from long
292 wxLongLongWx(long l)
293 { m_lo = l; m_hi = (l < 0 ? -1l : 0l); }
294 // from 2 longs
295 wxLongLongWx(long hi, unsigned long lo)
296 { m_hi = hi; m_lo = lo; }
297
298 // default copy ctor is ok in both cases
299
300 // no dtor
301
302 // assignment operators
303 // from long
304 wxLongLongWx& operator=(long l)
305 { m_lo = l; m_hi = (l < 0 ? -1l : 0l); return *this; }
306 // can't have assignment operator from 2 longs
307
308 // accessors
309 // get high part
310 long GetHi() const { return m_hi; }
311 // get low part
312 unsigned long GetLo() const { return m_lo; }
313
314 // operations
315 // addition
316 wxLongLongWx operator+(const wxLongLongWx& ll) const;
317 wxLongLongWx& operator+=(const wxLongLongWx& ll);
318 wxLongLongWx operator+(long l) const;
319 wxLongLongWx& operator+=(long l);
320
321 // pre increment operator
322 wxLongLongWx& operator++();
323
324 // post increment operator
325 wxLongLongWx& operator++(int);
326
327 // negation operator
328 wxLongLongWx operator-() const;
329
330 // subraction
331 wxLongLongWx operator-(const wxLongLongWx& ll) const;
332 wxLongLongWx& operator-=(const wxLongLongWx& ll);
333
334 // pre decrement operator
335 wxLongLongWx& operator--();
336
337 // post decrement operator
338 wxLongLongWx& operator--(int);
339
340 // shifts
341 // left shift
342 wxLongLongWx operator<<(int shift) const;
343 wxLongLongWx& operator<<=(int shift);
344
345 // right shift
346 wxLongLongWx operator>>(int shift) const;
347 wxLongLongWx& operator>>=(int shift);
348
349 // bitwise operators
350 wxLongLongWx operator&(const wxLongLongWx& ll) const;
351 wxLongLongWx& operator&=(const wxLongLongWx& ll);
352 wxLongLongWx operator|(const wxLongLongWx& ll) const;
353 wxLongLongWx& operator|=(const wxLongLongWx& ll);
354 wxLongLongWx operator^(const wxLongLongWx& ll) const;
355 wxLongLongWx& operator^=(const wxLongLongWx& ll);
356 wxLongLongWx operator~() const;
357
358 // comparison
359 bool operator==(const wxLongLongWx& ll) const;
360 bool operator!=(const wxLongLongWx& ll) const;
361 bool operator<(const wxLongLongWx& ll) const;
362 bool operator>(const wxLongLongWx& ll) const;
363 bool operator<=(const wxLongLongWx& ll) const;
364 bool operator>=(const wxLongLongWx& ll) const;
365
366 // multiplication
367 wxLongLongWx operator*(const wxLongLongWx& ll) const;
368 wxLongLongWx& operator*=(const wxLongLongWx& ll);
369 void *asArray(void) const;
370
371 // division
372 void Divide(const wxLongLongWx& divisor,
373 wxLongLongWx& quotient,
374 wxLongLongWx& remainder) const;
375
fcc3d7cb 376#if wxUSE_STD_IOSTREAM
8b81872f 377 // input/output
162b0c3b 378 friend ostream& operator<<(ostream&, const wxLongLongWx&);
fcc3d7cb 379#endif // wxUSE_STD_IOSTREAM
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380
381private:
382 // long is at least 32 bits, so represent our 64bit number as 2 longs
383
384 long m_hi; // signed bit is in the high part
385 unsigned long m_lo;
386};
387
388#endif // wxUSE_LONGLONG_WX
389
390#endif // _WX_LONGLONG_H