| 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 | |
| 22 | #include "wx/defs.h" |
| 23 | #include "wx/wxchar.h" |
| 24 | #include "wx/debug.h" |
| 25 | |
| 26 | #include <limits.h> // for LONG_MAX |
| 27 | |
| 28 | // ---------------------------------------------------------------------------- |
| 29 | // decide upon which class we will use |
| 30 | // ---------------------------------------------------------------------------- |
| 31 | |
| 32 | // to avoid compilation problems on 64bit machines with ambiguous method calls |
| 33 | // we will need to define this |
| 34 | #undef wxLongLongIsLong |
| 35 | |
| 36 | // NB: we #define and not typedef wxLongLong_t because we want to be able to |
| 37 | // use 'unsigned wxLongLong_t' as well and because we use "#ifdef |
| 38 | // wxLongLong_t" below |
| 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; |
| 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 |
| 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 | |
| 92 | class WXDLLEXPORT wxLongLongNative |
| 93 | { |
| 94 | public: |
| 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 | |
| 108 | // default copy ctor is ok |
| 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 |
| 122 | { return (long)(m_ll >> 32); } |
| 123 | // get low part |
| 124 | unsigned long GetLo() const |
| 125 | { return (unsigned long)m_ll; } |
| 126 | |
| 127 | // get absolute value |
| 128 | wxLongLongNative& Abs() { if ( m_ll < 0 ) m_ll = -m_ll; return *this; } |
| 129 | |
| 130 | // convert to native long long |
| 131 | wxLongLong_t GetValue() const { return m_ll; } |
| 132 | |
| 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 | |
| 142 | // don't provide implicit conversion to wxLongLong_t or we will have an |
| 143 | // ambiguity for all arithmetic operations |
| 144 | //operator wxLongLong_t() const { return m_ll; } |
| 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 | |
| 218 | // multiplication/division |
| 219 | wxLongLongNative operator*(const wxLongLongNative& ll) const |
| 220 | { return wxLongLongNative(m_ll * ll.m_ll); } |
| 221 | wxLongLongNative operator*(long l) const |
| 222 | { return wxLongLongNative(m_ll * l); } |
| 223 | wxLongLongNative& operator*=(const wxLongLongNative& ll) |
| 224 | { m_ll *= ll.m_ll; return *this; } |
| 225 | wxLongLongNative& operator*=(long l) |
| 226 | { m_ll *= l; return *this; } |
| 227 | |
| 228 | wxLongLongNative operator/(const wxLongLongNative& ll) const |
| 229 | { return wxLongLongNative(m_ll / ll.m_ll); } |
| 230 | wxLongLongNative operator/(long l) const |
| 231 | { return wxLongLongNative(m_ll / l); } |
| 232 | wxLongLongNative& operator/=(const wxLongLongNative& ll) |
| 233 | { m_ll /= ll.m_ll; return *this; } |
| 234 | wxLongLongNative& operator/=(long l) |
| 235 | { m_ll /= l; return *this; } |
| 236 | |
| 237 | wxLongLongNative operator%(const wxLongLongNative& ll) const |
| 238 | { return wxLongLongNative(m_ll % ll.m_ll); } |
| 239 | wxLongLongNative operator%(long l) const |
| 240 | { return wxLongLongNative(m_ll % l); } |
| 241 | |
| 242 | // comparison |
| 243 | bool operator==(const wxLongLongNative& ll) const |
| 244 | { return m_ll == ll.m_ll; } |
| 245 | bool operator==(long l) const |
| 246 | { return m_ll == l; } |
| 247 | bool operator!=(const wxLongLongNative& ll) const |
| 248 | { return m_ll != ll.m_ll; } |
| 249 | bool operator!=(long l) const |
| 250 | { return m_ll != l; } |
| 251 | bool operator<(const wxLongLongNative& ll) const |
| 252 | { return m_ll < ll.m_ll; } |
| 253 | bool operator<(long l) const |
| 254 | { return m_ll < l; } |
| 255 | bool operator>(const wxLongLongNative& ll) const |
| 256 | { return m_ll > ll.m_ll; } |
| 257 | bool operator>(long l) const |
| 258 | { return m_ll > l; } |
| 259 | bool operator<=(const wxLongLongNative& ll) const |
| 260 | { return m_ll <= ll.m_ll; } |
| 261 | bool operator<=(long l) const |
| 262 | { return m_ll <= l; } |
| 263 | bool operator>=(const wxLongLongNative& ll) const |
| 264 | { return m_ll >= ll.m_ll; } |
| 265 | bool operator>=(long l) const |
| 266 | { return m_ll >= l; } |
| 267 | |
| 268 | // miscellaneous |
| 269 | // conversion to byte array: returns a pointer to static buffer! |
| 270 | void *asArray() const; |
| 271 | |
| 272 | #if wxUSE_STD_IOSTREAM |
| 273 | // input/output |
| 274 | friend ostream& operator<<(ostream&, const wxLongLongNative&); |
| 275 | #endif |
| 276 | |
| 277 | private: |
| 278 | wxLongLong_t m_ll; |
| 279 | }; |
| 280 | |
| 281 | #endif // wxUSE_LONGLONG_NATIVE |
| 282 | |
| 283 | #if wxUSE_LONGLONG_WX |
| 284 | |
| 285 | class WXDLLEXPORT wxLongLongWx |
| 286 | { |
| 287 | public: |
| 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 | |
| 376 | #if wxUSE_STD_IOSTREAM |
| 377 | // input/output |
| 378 | friend ostream& operator<<(ostream&, const wxLongLongWx&); |
| 379 | #endif // wxUSE_STD_IOSTREAM |
| 380 | |
| 381 | private: |
| 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 |