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00039 #ifndef _GLIBCXX_SSTREAM
00040 #define _GLIBCXX_SSTREAM 1
00041
00042 #pragma GCC system_header
00043
00044 #include <istream>
00045 #include <ostream>
00046
00047 namespace std
00048 {
00049
00050
00051
00052
00053
00054
00055
00056
00057
00058
00059
00060
00061 template<typename _CharT, typename _Traits, typename _Alloc>
00062 class basic_stringbuf : public basic_streambuf<_CharT, _Traits>
00063 {
00064 public:
00065
00066 typedef _CharT char_type;
00067 typedef _Traits traits_type;
00068
00069
00070 typedef _Alloc allocator_type;
00071 typedef typename traits_type::int_type int_type;
00072 typedef typename traits_type::pos_type pos_type;
00073 typedef typename traits_type::off_type off_type;
00074
00075 typedef basic_streambuf<char_type, traits_type> __streambuf_type;
00076 typedef basic_string<char_type, _Traits, _Alloc> __string_type;
00077 typedef typename __string_type::size_type __size_type;
00078
00079 protected:
00080
00081
00082
00083
00084
00085 ios_base::openmode _M_mode;
00086
00087
00088 __string_type _M_string;
00089
00090 public:
00091
00092
00093
00094
00095
00096
00097
00098
00099 explicit
00100 basic_stringbuf(ios_base::openmode __mode = ios_base::in | ios_base::out)
00101 : __streambuf_type(), _M_mode(__mode), _M_string()
00102 { }
00103
00104
00105
00106
00107
00108
00109
00110
00111
00112 explicit
00113 basic_stringbuf(const __string_type& __str,
00114 ios_base::openmode __mode = ios_base::in | ios_base::out)
00115 : __streambuf_type(), _M_mode(), _M_string(__str.data(), __str.size())
00116 { _M_stringbuf_init(__mode); }
00117
00118
00119
00120
00121
00122
00123
00124
00125
00126
00127 __string_type
00128 str() const
00129 {
00130 __string_type __ret;
00131 if (this->pptr())
00132 {
00133
00134 if (this->pptr() > this->egptr())
00135 __ret = __string_type(this->pbase(), this->pptr());
00136 else
00137 __ret = __string_type(this->pbase(), this->egptr());
00138 }
00139 else
00140 __ret = _M_string;
00141 return __ret;
00142 }
00143
00144
00145
00146
00147
00148
00149
00150
00151 void
00152 str(const __string_type& __s)
00153 {
00154
00155 _M_string.assign(__s.data(), __s.size());
00156 _M_stringbuf_init(_M_mode);
00157 }
00158
00159 protected:
00160
00161 void
00162 _M_stringbuf_init(ios_base::openmode __mode)
00163 {
00164 _M_mode = __mode;
00165 __size_type __len = 0;
00166 if (_M_mode & (ios_base::ate | ios_base::app))
00167 __len = _M_string.size();
00168 _M_sync(const_cast<char_type*>(_M_string.data()), 0, __len);
00169 }
00170
00171 virtual streamsize
00172 showmanyc()
00173 {
00174 streamsize __ret = -1;
00175 if (_M_mode & ios_base::in)
00176 {
00177 _M_update_egptr();
00178 __ret = this->egptr() - this->gptr();
00179 }
00180 return __ret;
00181 }
00182
00183 virtual int_type
00184 underflow();
00185
00186 virtual int_type
00187 pbackfail(int_type __c = traits_type::eof());
00188
00189 virtual int_type
00190 overflow(int_type __c = traits_type::eof());
00191
00192
00193
00194
00195
00196
00197
00198
00199
00200
00201
00202
00203 virtual __streambuf_type*
00204 setbuf(char_type* __s, streamsize __n)
00205 {
00206 if (__s && __n >= 0)
00207 {
00208
00209
00210
00211
00212
00213
00214 _M_string.assign(__s, __n);
00215
00216
00217 _M_sync(__s, 0, 0);
00218 }
00219 return this;
00220 }
00221
00222 virtual pos_type
00223 seekoff(off_type __off, ios_base::seekdir __way,
00224 ios_base::openmode __mode = ios_base::in | ios_base::out);
00225
00226 virtual pos_type
00227 seekpos(pos_type __sp,
00228 ios_base::openmode __mode = ios_base::in | ios_base::out);
00229
00230
00231
00232
00233
00234
00235
00236 void
00237 _M_sync(char_type* __base, __size_type __i, __size_type __o)
00238 {
00239 const bool __testin = _M_mode & ios_base::in;
00240 const bool __testout = _M_mode & ios_base::out;
00241 char_type* __end = __base + _M_string.size();
00242
00243 if (__testin)
00244 this->setg(__base, __base + __i, __end);
00245 if (__testout)
00246 {
00247
00248
00249
00250 if (__base == _M_string.data())
00251 this->setp(__base, __base + _M_string.capacity());
00252 else
00253 this->setp(__base, __end);
00254 this->pbump(__o);
00255
00256
00257
00258 if (!__testin)
00259 this->setg(__end, __end, __end);
00260 }
00261 }
00262
00263
00264
00265 void
00266 _M_update_egptr()
00267 {
00268 const bool __testin = _M_mode & ios_base::in;
00269 if (this->pptr() && this->pptr() > this->egptr())
00270 if (__testin)
00271 this->setg(this->eback(), this->gptr(), this->pptr());
00272 else
00273 this->setg(this->pptr(), this->pptr(), this->pptr());
00274 }
00275 };
00276
00277
00278
00279
00280
00281
00282
00283
00284
00285
00286
00287 template<typename _CharT, typename _Traits, typename _Alloc>
00288 class basic_istringstream : public basic_istream<_CharT, _Traits>
00289 {
00290 public:
00291
00292 typedef _CharT char_type;
00293 typedef _Traits traits_type;
00294
00295
00296 typedef _Alloc allocator_type;
00297 typedef typename traits_type::int_type int_type;
00298 typedef typename traits_type::pos_type pos_type;
00299 typedef typename traits_type::off_type off_type;
00300
00301
00302 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
00303 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
00304 typedef basic_istream<char_type, traits_type> __istream_type;
00305
00306 private:
00307 __stringbuf_type _M_stringbuf;
00308
00309 public:
00310
00311
00312
00313
00314
00315
00316
00317
00318
00319
00320
00321
00322
00323
00324
00325 explicit
00326 basic_istringstream(ios_base::openmode __mode = ios_base::in)
00327 : __istream_type(), _M_stringbuf(__mode | ios_base::in)
00328 { this->init(&_M_stringbuf); }
00329
00330
00331
00332
00333
00334
00335
00336
00337
00338
00339
00340
00341
00342
00343
00344
00345 explicit
00346 basic_istringstream(const __string_type& __str,
00347 ios_base::openmode __mode = ios_base::in)
00348 : __istream_type(), _M_stringbuf(__str, __mode | ios_base::in)
00349 { this->init(&_M_stringbuf); }
00350
00351
00352
00353
00354
00355
00356
00357 ~basic_istringstream()
00358 { }
00359
00360
00361
00362
00363
00364
00365
00366
00367 __stringbuf_type*
00368 rdbuf() const
00369 { return const_cast<__stringbuf_type*>(&_M_stringbuf); }
00370
00371
00372
00373
00374
00375 __string_type
00376 str() const
00377 { return _M_stringbuf.str(); }
00378
00379
00380
00381
00382
00383
00384
00385 void
00386 str(const __string_type& __s)
00387 { _M_stringbuf.str(__s); }
00388 };
00389
00390
00391
00392
00393
00394
00395
00396
00397
00398
00399
00400 template <typename _CharT, typename _Traits, typename _Alloc>
00401 class basic_ostringstream : public basic_ostream<_CharT, _Traits>
00402 {
00403 public:
00404
00405 typedef _CharT char_type;
00406 typedef _Traits traits_type;
00407
00408
00409 typedef _Alloc allocator_type;
00410 typedef typename traits_type::int_type int_type;
00411 typedef typename traits_type::pos_type pos_type;
00412 typedef typename traits_type::off_type off_type;
00413
00414
00415 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
00416 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
00417 typedef basic_ostream<char_type, traits_type> __ostream_type;
00418
00419 private:
00420 __stringbuf_type _M_stringbuf;
00421
00422 public:
00423
00424
00425
00426
00427
00428
00429
00430
00431
00432
00433
00434
00435
00436
00437
00438 explicit
00439 basic_ostringstream(ios_base::openmode __mode = ios_base::out)
00440 : __ostream_type(), _M_stringbuf(__mode | ios_base::out)
00441 { this->init(&_M_stringbuf); }
00442
00443
00444
00445
00446
00447
00448
00449
00450
00451
00452
00453
00454
00455
00456
00457
00458 explicit
00459 basic_ostringstream(const __string_type& __str,
00460 ios_base::openmode __mode = ios_base::out)
00461 : __ostream_type(), _M_stringbuf(__str, __mode | ios_base::out)
00462 { this->init(&_M_stringbuf); }
00463
00464
00465
00466
00467
00468
00469
00470 ~basic_ostringstream()
00471 { }
00472
00473
00474
00475
00476
00477
00478
00479
00480 __stringbuf_type*
00481 rdbuf() const
00482 { return const_cast<__stringbuf_type*>(&_M_stringbuf); }
00483
00484
00485
00486
00487
00488 __string_type
00489 str() const
00490 { return _M_stringbuf.str(); }
00491
00492
00493
00494
00495
00496
00497
00498 void
00499 str(const __string_type& __s)
00500 { _M_stringbuf.str(__s); }
00501 };
00502
00503
00504
00505
00506
00507
00508
00509
00510
00511
00512
00513 template <typename _CharT, typename _Traits, typename _Alloc>
00514 class basic_stringstream : public basic_iostream<_CharT, _Traits>
00515 {
00516 public:
00517
00518 typedef _CharT char_type;
00519 typedef _Traits traits_type;
00520
00521
00522 typedef _Alloc allocator_type;
00523 typedef typename traits_type::int_type int_type;
00524 typedef typename traits_type::pos_type pos_type;
00525 typedef typename traits_type::off_type off_type;
00526
00527
00528 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
00529 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
00530 typedef basic_iostream<char_type, traits_type> __iostream_type;
00531
00532 private:
00533 __stringbuf_type _M_stringbuf;
00534
00535 public:
00536
00537
00538
00539
00540
00541
00542
00543
00544
00545
00546
00547
00548
00549 explicit
00550 basic_stringstream(ios_base::openmode __m = ios_base::out | ios_base::in)
00551 : __iostream_type(), _M_stringbuf(__m)
00552 { this->init(&_M_stringbuf); }
00553
00554
00555
00556
00557
00558
00559
00560
00561
00562
00563
00564
00565
00566
00567 explicit
00568 basic_stringstream(const __string_type& __str,
00569 ios_base::openmode __m = ios_base::out | ios_base::in)
00570 : __iostream_type(), _M_stringbuf(__str, __m)
00571 { this->init(&_M_stringbuf); }
00572
00573
00574
00575
00576
00577
00578
00579 ~basic_stringstream()
00580 { }
00581
00582
00583
00584
00585
00586
00587
00588
00589 __stringbuf_type*
00590 rdbuf() const
00591 { return const_cast<__stringbuf_type*>(&_M_stringbuf); }
00592
00593
00594
00595
00596
00597 __string_type
00598 str() const
00599 { return _M_stringbuf.str(); }
00600
00601
00602
00603
00604
00605
00606
00607 void
00608 str(const __string_type& __s)
00609 { _M_stringbuf.str(__s); }
00610 };
00611 }
00612
00613 #ifndef _GLIBCXX_EXPORT_TEMPLATE
00614 # include <bits/sstream.tcc>
00615 #endif
00616
00617 #endif