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| 1 // -*- C++ -*- |
| 2 //===------------------------- fstream ------------------------------------===// |
| 3 // |
| 4 // The LLVM Compiler Infrastructure |
| 5 // |
| 6 // This file is dual licensed under the MIT and the University of Illinois Open |
| 7 // Source Licenses. See LICENSE.TXT for details. |
| 8 // |
| 9 //===----------------------------------------------------------------------===// |
| 10 |
| 11 #ifndef _LIBCPP_FSTREAM |
| 12 #define _LIBCPP_FSTREAM |
| 13 |
| 14 /* |
| 15 fstream synopsis |
| 16 |
| 17 template <class charT, class traits = char_traits<charT> > |
| 18 class basic_filebuf |
| 19 : public basic_streambuf<charT, traits> |
| 20 { |
| 21 public: |
| 22 typedef charT char_type; |
| 23 typedef traits traits_type; |
| 24 typedef typename traits_type::int_type int_type; |
| 25 typedef typename traits_type::pos_type pos_type; |
| 26 typedef typename traits_type::off_type off_type; |
| 27 |
| 28 // 27.9.1.2 Constructors/destructor: |
| 29 basic_filebuf(); |
| 30 basic_filebuf(basic_filebuf&& rhs); |
| 31 virtual ~basic_filebuf(); |
| 32 |
| 33 // 27.9.1.3 Assign/swap: |
| 34 basic_filebuf& operator=(basic_filebuf&& rhs); |
| 35 void swap(basic_filebuf& rhs); |
| 36 |
| 37 // 27.9.1.4 Members: |
| 38 bool is_open() const; |
| 39 basic_filebuf* open(const char* s, ios_base::openmode mode); |
| 40 basic_filebuf* open(const string& s, ios_base::openmode mode); |
| 41 basic_filebuf* close(); |
| 42 |
| 43 protected: |
| 44 // 27.9.1.5 Overridden virtual functions: |
| 45 virtual streamsize showmanyc(); |
| 46 virtual int_type underflow(); |
| 47 virtual int_type uflow(); |
| 48 virtual int_type pbackfail(int_type c = traits_type::eof()); |
| 49 virtual int_type overflow (int_type c = traits_type::eof()); |
| 50 virtual basic_streambuf<char_type, traits_type>* setbuf(char_type* s, stream
size n); |
| 51 virtual pos_type seekoff(off_type off, ios_base::seekdir way, |
| 52 ios_base::openmode which = ios_base::in | ios_base:
:out); |
| 53 virtual pos_type seekpos(pos_type sp, |
| 54 ios_base::openmode which = ios_base::in | ios_base:
:out); |
| 55 virtual int sync(); |
| 56 virtual void imbue(const locale& loc); |
| 57 }; |
| 58 |
| 59 template <class charT, class traits> |
| 60 void |
| 61 swap(basic_filebuf<charT, traits>& x, basic_filebuf<charT, traits>& y); |
| 62 |
| 63 typedef basic_filebuf<char> filebuf; |
| 64 typedef basic_filebuf<wchar_t> wfilebuf; |
| 65 |
| 66 template <class charT, class traits = char_traits<charT> > |
| 67 class basic_ifstream |
| 68 : public basic_istream<charT,traits> |
| 69 { |
| 70 public: |
| 71 typedef charT char_type; |
| 72 typedef traits traits_type; |
| 73 typedef typename traits_type::int_type int_type; |
| 74 typedef typename traits_type::pos_type pos_type; |
| 75 typedef typename traits_type::off_type off_type; |
| 76 |
| 77 basic_ifstream(); |
| 78 explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::i
n); |
| 79 explicit basic_ifstream(const string& s, ios_base::openmode mode = ios_base:
:in); |
| 80 basic_ifstream(basic_ifstream&& rhs); |
| 81 |
| 82 basic_ifstream& operator=(basic_ifstream&& rhs); |
| 83 void swap(basic_ifstream& rhs); |
| 84 |
| 85 basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 86 bool is_open() const; |
| 87 void open(const char* s, ios_base::openmode mode = ios_base::in); |
| 88 void open(const string& s, ios_base::openmode mode = ios_base::in); |
| 89 void close(); |
| 90 }; |
| 91 |
| 92 template <class charT, class traits> |
| 93 void |
| 94 swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y); |
| 95 |
| 96 typedef basic_ifstream<char> ifstream; |
| 97 typedef basic_ifstream<wchar_t> wifstream; |
| 98 |
| 99 template <class charT, class traits = char_traits<charT> > |
| 100 class basic_ofstream |
| 101 : public basic_ostream<charT,traits> |
| 102 { |
| 103 public: |
| 104 typedef charT char_type; |
| 105 typedef traits traits_type; |
| 106 typedef typename traits_type::int_type int_type; |
| 107 typedef typename traits_type::pos_type pos_type; |
| 108 typedef typename traits_type::off_type off_type; |
| 109 |
| 110 basic_ofstream(); |
| 111 explicit basic_ofstream(const char* s, ios_base::openmode mode = ios_base::o
ut); |
| 112 explicit basic_ofstream(const string& s, ios_base::openmode mode = ios_base:
:out); |
| 113 basic_ofstream(basic_ofstream&& rhs); |
| 114 |
| 115 basic_ofstream& operator=(basic_ofstream&& rhs); |
| 116 void swap(basic_ofstream& rhs); |
| 117 |
| 118 basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 119 bool is_open() const; |
| 120 void open(const char* s, ios_base::openmode mode = ios_base::out); |
| 121 void open(const string& s, ios_base::openmode mode = ios_base::out); |
| 122 void close(); |
| 123 }; |
| 124 |
| 125 template <class charT, class traits> |
| 126 void |
| 127 swap(basic_ofstream<charT, traits>& x, basic_ofstream<charT, traits>& y); |
| 128 |
| 129 typedef basic_ofstream<char> ofstream; |
| 130 typedef basic_ofstream<wchar_t> wofstream; |
| 131 |
| 132 template <class charT, class traits=char_traits<charT> > |
| 133 class basic_fstream |
| 134 : public basic_iostream<charT,traits> |
| 135 { |
| 136 public: |
| 137 typedef charT char_type; |
| 138 typedef traits traits_type; |
| 139 typedef typename traits_type::int_type int_type; |
| 140 typedef typename traits_type::pos_type pos_type; |
| 141 typedef typename traits_type::off_type off_type; |
| 142 |
| 143 basic_fstream(); |
| 144 explicit basic_fstream(const char* s, ios_base::openmode mode = ios_base::in
|ios_base::out); |
| 145 explicit basic_fstream(const string& s, ios_base::openmode mode = ios_base::
in|ios_base::out); |
| 146 basic_fstream(basic_fstream&& rhs); |
| 147 |
| 148 basic_fstream& operator=(basic_fstream&& rhs); |
| 149 void swap(basic_fstream& rhs); |
| 150 |
| 151 basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 152 bool is_open() const; |
| 153 void open(const char* s, ios_base::openmode mode = ios_base::in|ios_base::ou
t); |
| 154 void open(const string& s, ios_base::openmode mode = ios_base::in|ios_base::
out); |
| 155 void close(); |
| 156 }; |
| 157 |
| 158 template <class charT, class traits> |
| 159 void swap(basic_fstream<charT, traits>& x, basic_fstream<charT, traits>& y); |
| 160 |
| 161 typedef basic_fstream<char> fstream; |
| 162 typedef basic_fstream<wchar_t> wfstream; |
| 163 |
| 164 } // std |
| 165 |
| 166 */ |
| 167 |
| 168 #include <__config> |
| 169 #include <ostream> |
| 170 #include <istream> |
| 171 #include <__locale> |
| 172 #include <cstdio> |
| 173 |
| 174 #include <__undef_min_max> |
| 175 |
| 176 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 177 #pragma GCC system_header |
| 178 #endif |
| 179 |
| 180 _LIBCPP_BEGIN_NAMESPACE_STD |
| 181 |
| 182 template <class _CharT, class _Traits> |
| 183 class _LIBCPP_TYPE_VIS_ONLY basic_filebuf |
| 184 : public basic_streambuf<_CharT, _Traits> |
| 185 { |
| 186 public: |
| 187 typedef _CharT char_type; |
| 188 typedef _Traits traits_type; |
| 189 typedef typename traits_type::int_type int_type; |
| 190 typedef typename traits_type::pos_type pos_type; |
| 191 typedef typename traits_type::off_type off_type; |
| 192 typedef typename traits_type::state_type state_type; |
| 193 |
| 194 // 27.9.1.2 Constructors/destructor: |
| 195 basic_filebuf(); |
| 196 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 197 basic_filebuf(basic_filebuf&& __rhs); |
| 198 #endif |
| 199 virtual ~basic_filebuf(); |
| 200 |
| 201 // 27.9.1.3 Assign/swap: |
| 202 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 203 basic_filebuf& operator=(basic_filebuf&& __rhs); |
| 204 #endif |
| 205 void swap(basic_filebuf& __rhs); |
| 206 |
| 207 // 27.9.1.4 Members: |
| 208 bool is_open() const; |
| 209 basic_filebuf* open(const char* __s, ios_base::openmode __mode); |
| 210 basic_filebuf* open(const string& __s, ios_base::openmode __mode); |
| 211 basic_filebuf* close(); |
| 212 |
| 213 protected: |
| 214 // 27.9.1.5 Overridden virtual functions: |
| 215 virtual int_type underflow(); |
| 216 virtual int_type pbackfail(int_type __c = traits_type::eof()); |
| 217 virtual int_type overflow (int_type __c = traits_type::eof()); |
| 218 virtual basic_streambuf<char_type, traits_type>* setbuf(char_type* __s, stre
amsize __n); |
| 219 virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, |
| 220 ios_base::openmode __wch = ios_base::in | ios_base:
:out); |
| 221 virtual pos_type seekpos(pos_type __sp, |
| 222 ios_base::openmode __wch = ios_base::in | ios_base:
:out); |
| 223 virtual int sync(); |
| 224 virtual void imbue(const locale& __loc); |
| 225 |
| 226 private: |
| 227 char* __extbuf_; |
| 228 const char* __extbufnext_; |
| 229 const char* __extbufend_; |
| 230 char __extbuf_min_[8]; |
| 231 size_t __ebs_; |
| 232 char_type* __intbuf_; |
| 233 size_t __ibs_; |
| 234 FILE* __file_; |
| 235 const codecvt<char_type, char, state_type>* __cv_; |
| 236 state_type __st_; |
| 237 state_type __st_last_; |
| 238 ios_base::openmode __om_; |
| 239 ios_base::openmode __cm_; |
| 240 bool __owns_eb_; |
| 241 bool __owns_ib_; |
| 242 bool __always_noconv_; |
| 243 |
| 244 bool __read_mode(); |
| 245 void __write_mode(); |
| 246 }; |
| 247 |
| 248 template <class _CharT, class _Traits> |
| 249 basic_filebuf<_CharT, _Traits>::basic_filebuf() |
| 250 : __extbuf_(0), |
| 251 __extbufnext_(0), |
| 252 __extbufend_(0), |
| 253 __ebs_(0), |
| 254 __intbuf_(0), |
| 255 __ibs_(0), |
| 256 __file_(0), |
| 257 __cv_(nullptr), |
| 258 __st_(), |
| 259 __st_last_(), |
| 260 __om_(0), |
| 261 __cm_(0), |
| 262 __owns_eb_(false), |
| 263 __owns_ib_(false), |
| 264 __always_noconv_(false) |
| 265 { |
| 266 if (has_facet<codecvt<char_type, char, state_type> >(this->getloc())) |
| 267 { |
| 268 __cv_ = &use_facet<codecvt<char_type, char, state_type> >(this->getloc()
); |
| 269 __always_noconv_ = __cv_->always_noconv(); |
| 270 } |
| 271 setbuf(0, 4096); |
| 272 } |
| 273 |
| 274 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 275 |
| 276 template <class _CharT, class _Traits> |
| 277 basic_filebuf<_CharT, _Traits>::basic_filebuf(basic_filebuf&& __rhs) |
| 278 : basic_streambuf<_CharT, _Traits>(__rhs) |
| 279 { |
| 280 if (__rhs.__extbuf_ == __rhs.__extbuf_min_) |
| 281 { |
| 282 __extbuf_ = __extbuf_min_; |
| 283 __extbufnext_ = __extbuf_ + (__rhs.__extbufnext_ - __rhs.__extbuf_); |
| 284 __extbufend_ = __extbuf_ + (__rhs.__extbufend_ - __rhs.__extbuf_); |
| 285 } |
| 286 else |
| 287 { |
| 288 __extbuf_ = __rhs.__extbuf_; |
| 289 __extbufnext_ = __rhs.__extbufnext_; |
| 290 __extbufend_ = __rhs.__extbufend_; |
| 291 } |
| 292 __ebs_ = __rhs.__ebs_; |
| 293 __intbuf_ = __rhs.__intbuf_; |
| 294 __ibs_ = __rhs.__ibs_; |
| 295 __file_ = __rhs.__file_; |
| 296 __cv_ = __rhs.__cv_; |
| 297 __st_ = __rhs.__st_; |
| 298 __st_last_ = __rhs.__st_last_; |
| 299 __om_ = __rhs.__om_; |
| 300 __cm_ = __rhs.__cm_; |
| 301 __owns_eb_ = __rhs.__owns_eb_; |
| 302 __owns_ib_ = __rhs.__owns_ib_; |
| 303 __always_noconv_ = __rhs.__always_noconv_; |
| 304 if (__rhs.pbase()) |
| 305 { |
| 306 if (__rhs.pbase() == __rhs.__intbuf_) |
| 307 this->setp(__intbuf_, __intbuf_ + (__rhs. epptr() - __rhs.pbase())); |
| 308 else |
| 309 this->setp((char_type*)__extbuf_, |
| 310 (char_type*)__extbuf_ + (__rhs. epptr() - __rhs.pbase()))
; |
| 311 this->pbump(__rhs. pptr() - __rhs.pbase()); |
| 312 } |
| 313 else if (__rhs.eback()) |
| 314 { |
| 315 if (__rhs.eback() == __rhs.__intbuf_) |
| 316 this->setg(__intbuf_, __intbuf_ + (__rhs.gptr() - __rhs.eback()), |
| 317 __intbuf_ + (__rhs.egptr() - __rhs.eback())); |
| 318 else |
| 319 this->setg((char_type*)__extbuf_, |
| 320 (char_type*)__extbuf_ + (__rhs.gptr() - __rhs.eback()), |
| 321 (char_type*)__extbuf_ + (__rhs.egptr() - __rhs.eback())); |
| 322 } |
| 323 __rhs.__extbuf_ = 0; |
| 324 __rhs.__extbufnext_ = 0; |
| 325 __rhs.__extbufend_ = 0; |
| 326 __rhs.__ebs_ = 0; |
| 327 __rhs.__intbuf_ = 0; |
| 328 __rhs.__ibs_ = 0; |
| 329 __rhs.__file_ = 0; |
| 330 __rhs.__st_ = state_type(); |
| 331 __rhs.__st_last_ = state_type(); |
| 332 __rhs.__om_ = 0; |
| 333 __rhs.__cm_ = 0; |
| 334 __rhs.__owns_eb_ = false; |
| 335 __rhs.__owns_ib_ = false; |
| 336 __rhs.setg(0, 0, 0); |
| 337 __rhs.setp(0, 0); |
| 338 } |
| 339 |
| 340 template <class _CharT, class _Traits> |
| 341 inline _LIBCPP_INLINE_VISIBILITY |
| 342 basic_filebuf<_CharT, _Traits>& |
| 343 basic_filebuf<_CharT, _Traits>::operator=(basic_filebuf&& __rhs) |
| 344 { |
| 345 close(); |
| 346 swap(__rhs); |
| 347 return *this; |
| 348 } |
| 349 |
| 350 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 351 |
| 352 template <class _CharT, class _Traits> |
| 353 basic_filebuf<_CharT, _Traits>::~basic_filebuf() |
| 354 { |
| 355 #ifndef _LIBCPP_NO_EXCEPTIONS |
| 356 try |
| 357 { |
| 358 #endif // _LIBCPP_NO_EXCEPTIONS |
| 359 close(); |
| 360 #ifndef _LIBCPP_NO_EXCEPTIONS |
| 361 } |
| 362 catch (...) |
| 363 { |
| 364 } |
| 365 #endif // _LIBCPP_NO_EXCEPTIONS |
| 366 if (__owns_eb_) |
| 367 delete [] __extbuf_; |
| 368 if (__owns_ib_) |
| 369 delete [] __intbuf_; |
| 370 } |
| 371 |
| 372 template <class _CharT, class _Traits> |
| 373 void |
| 374 basic_filebuf<_CharT, _Traits>::swap(basic_filebuf& __rhs) |
| 375 { |
| 376 basic_streambuf<char_type, traits_type>::swap(__rhs); |
| 377 if (__extbuf_ != __extbuf_min_ && __rhs.__extbuf_ != __rhs.__extbuf_min_) |
| 378 { |
| 379 _VSTD::swap(__extbuf_, __rhs.__extbuf_); |
| 380 _VSTD::swap(__extbufnext_, __rhs.__extbufnext_); |
| 381 _VSTD::swap(__extbufend_, __rhs.__extbufend_); |
| 382 } |
| 383 else |
| 384 { |
| 385 ptrdiff_t __ln = __extbufnext_ - __extbuf_; |
| 386 ptrdiff_t __le = __extbufend_ - __extbuf_; |
| 387 ptrdiff_t __rn = __rhs.__extbufnext_ - __rhs.__extbuf_; |
| 388 ptrdiff_t __re = __rhs.__extbufend_ - __rhs.__extbuf_; |
| 389 if (__extbuf_ == __extbuf_min_ && __rhs.__extbuf_ != __rhs.__extbuf_min_
) |
| 390 { |
| 391 __extbuf_ = __rhs.__extbuf_; |
| 392 __rhs.__extbuf_ = __rhs.__extbuf_min_; |
| 393 } |
| 394 else if (__extbuf_ != __extbuf_min_ && __rhs.__extbuf_ == __rhs.__extbuf
_min_) |
| 395 { |
| 396 __rhs.__extbuf_ = __extbuf_; |
| 397 __extbuf_ = __extbuf_min_; |
| 398 } |
| 399 __extbufnext_ = __extbuf_ + __rn; |
| 400 __extbufend_ = __extbuf_ + __re; |
| 401 __rhs.__extbufnext_ = __rhs.__extbuf_ + __ln; |
| 402 __rhs.__extbufend_ = __rhs.__extbuf_ + __le; |
| 403 } |
| 404 _VSTD::swap(__ebs_, __rhs.__ebs_); |
| 405 _VSTD::swap(__intbuf_, __rhs.__intbuf_); |
| 406 _VSTD::swap(__ibs_, __rhs.__ibs_); |
| 407 _VSTD::swap(__file_, __rhs.__file_); |
| 408 _VSTD::swap(__cv_, __rhs.__cv_); |
| 409 _VSTD::swap(__st_, __rhs.__st_); |
| 410 _VSTD::swap(__st_last_, __rhs.__st_last_); |
| 411 _VSTD::swap(__om_, __rhs.__om_); |
| 412 _VSTD::swap(__cm_, __rhs.__cm_); |
| 413 _VSTD::swap(__owns_eb_, __rhs.__owns_eb_); |
| 414 _VSTD::swap(__owns_ib_, __rhs.__owns_ib_); |
| 415 _VSTD::swap(__always_noconv_, __rhs.__always_noconv_); |
| 416 if (this->eback() == (char_type*)__rhs.__extbuf_min_) |
| 417 { |
| 418 ptrdiff_t __n = this->gptr() - this->eback(); |
| 419 ptrdiff_t __e = this->egptr() - this->eback(); |
| 420 this->setg((char_type*)__extbuf_min_, |
| 421 (char_type*)__extbuf_min_ + __n, |
| 422 (char_type*)__extbuf_min_ + __e); |
| 423 } |
| 424 else if (this->pbase() == (char_type*)__rhs.__extbuf_min_) |
| 425 { |
| 426 ptrdiff_t __n = this->pptr() - this->pbase(); |
| 427 ptrdiff_t __e = this->epptr() - this->pbase(); |
| 428 this->setp((char_type*)__extbuf_min_, |
| 429 (char_type*)__extbuf_min_ + __e); |
| 430 this->pbump(__n); |
| 431 } |
| 432 if (__rhs.eback() == (char_type*)__extbuf_min_) |
| 433 { |
| 434 ptrdiff_t __n = __rhs.gptr() - __rhs.eback(); |
| 435 ptrdiff_t __e = __rhs.egptr() - __rhs.eback(); |
| 436 __rhs.setg((char_type*)__rhs.__extbuf_min_, |
| 437 (char_type*)__rhs.__extbuf_min_ + __n, |
| 438 (char_type*)__rhs.__extbuf_min_ + __e); |
| 439 } |
| 440 else if (__rhs.pbase() == (char_type*)__extbuf_min_) |
| 441 { |
| 442 ptrdiff_t __n = __rhs.pptr() - __rhs.pbase(); |
| 443 ptrdiff_t __e = __rhs.epptr() - __rhs.pbase(); |
| 444 __rhs.setp((char_type*)__rhs.__extbuf_min_, |
| 445 (char_type*)__rhs.__extbuf_min_ + __e); |
| 446 __rhs.pbump(__n); |
| 447 } |
| 448 } |
| 449 |
| 450 template <class _CharT, class _Traits> |
| 451 inline _LIBCPP_INLINE_VISIBILITY |
| 452 void |
| 453 swap(basic_filebuf<_CharT, _Traits>& __x, basic_filebuf<_CharT, _Traits>& __y) |
| 454 { |
| 455 __x.swap(__y); |
| 456 } |
| 457 |
| 458 template <class _CharT, class _Traits> |
| 459 inline _LIBCPP_INLINE_VISIBILITY |
| 460 bool |
| 461 basic_filebuf<_CharT, _Traits>::is_open() const |
| 462 { |
| 463 return __file_ != 0; |
| 464 } |
| 465 |
| 466 template <class _CharT, class _Traits> |
| 467 basic_filebuf<_CharT, _Traits>* |
| 468 basic_filebuf<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) |
| 469 { |
| 470 basic_filebuf<_CharT, _Traits>* __rt = 0; |
| 471 if (__file_ == 0) |
| 472 { |
| 473 __rt = this; |
| 474 const char* __mdstr; |
| 475 switch (__mode & ~ios_base::ate) |
| 476 { |
| 477 case ios_base::out: |
| 478 case ios_base::out | ios_base::trunc: |
| 479 __mdstr = "w"; |
| 480 break; |
| 481 case ios_base::out | ios_base::app: |
| 482 case ios_base::app: |
| 483 __mdstr = "a"; |
| 484 break; |
| 485 case ios_base::in: |
| 486 __mdstr = "r"; |
| 487 break; |
| 488 case ios_base::in | ios_base::out: |
| 489 __mdstr = "r+"; |
| 490 break; |
| 491 case ios_base::in | ios_base::out | ios_base::trunc: |
| 492 __mdstr = "w+"; |
| 493 break; |
| 494 case ios_base::in | ios_base::out | ios_base::app: |
| 495 case ios_base::in | ios_base::app: |
| 496 __mdstr = "a+"; |
| 497 break; |
| 498 case ios_base::out | ios_base::binary: |
| 499 case ios_base::out | ios_base::trunc | ios_base::binary: |
| 500 __mdstr = "wb"; |
| 501 break; |
| 502 case ios_base::out | ios_base::app | ios_base::binary: |
| 503 case ios_base::app | ios_base::binary: |
| 504 __mdstr = "ab"; |
| 505 break; |
| 506 case ios_base::in | ios_base::binary: |
| 507 __mdstr = "rb"; |
| 508 break; |
| 509 case ios_base::in | ios_base::out | ios_base::binary: |
| 510 __mdstr = "r+b"; |
| 511 break; |
| 512 case ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary: |
| 513 __mdstr = "w+b"; |
| 514 break; |
| 515 case ios_base::in | ios_base::out | ios_base::app | ios_base::binary: |
| 516 case ios_base::in | ios_base::app | ios_base::binary: |
| 517 __mdstr = "a+b"; |
| 518 break; |
| 519 default: |
| 520 __rt = 0; |
| 521 break; |
| 522 } |
| 523 if (__rt) |
| 524 { |
| 525 __file_ = fopen(__s, __mdstr); |
| 526 if (__file_) |
| 527 { |
| 528 __om_ = __mode; |
| 529 if (__mode & ios_base::ate) |
| 530 { |
| 531 if (fseek(__file_, 0, SEEK_END)) |
| 532 { |
| 533 fclose(__file_); |
| 534 __file_ = 0; |
| 535 __rt = 0; |
| 536 } |
| 537 } |
| 538 } |
| 539 else |
| 540 __rt = 0; |
| 541 } |
| 542 } |
| 543 return __rt; |
| 544 } |
| 545 |
| 546 template <class _CharT, class _Traits> |
| 547 inline _LIBCPP_INLINE_VISIBILITY |
| 548 basic_filebuf<_CharT, _Traits>* |
| 549 basic_filebuf<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mod
e) |
| 550 { |
| 551 return open(__s.c_str(), __mode); |
| 552 } |
| 553 |
| 554 template <class _CharT, class _Traits> |
| 555 basic_filebuf<_CharT, _Traits>* |
| 556 basic_filebuf<_CharT, _Traits>::close() |
| 557 { |
| 558 basic_filebuf<_CharT, _Traits>* __rt = 0; |
| 559 if (__file_) |
| 560 { |
| 561 __rt = this; |
| 562 unique_ptr<FILE, int(*)(FILE*)> __h(__file_, fclose); |
| 563 if (sync()) |
| 564 __rt = 0; |
| 565 if (fclose(__h.release()) == 0) |
| 566 __file_ = 0; |
| 567 else |
| 568 __rt = 0; |
| 569 } |
| 570 return __rt; |
| 571 } |
| 572 |
| 573 template <class _CharT, class _Traits> |
| 574 typename basic_filebuf<_CharT, _Traits>::int_type |
| 575 basic_filebuf<_CharT, _Traits>::underflow() |
| 576 { |
| 577 if (__file_ == 0) |
| 578 return traits_type::eof(); |
| 579 bool __initial = __read_mode(); |
| 580 char_type __1buf; |
| 581 if (this->gptr() == 0) |
| 582 this->setg(&__1buf, &__1buf+1, &__1buf+1); |
| 583 const size_t __unget_sz = __initial ? 0 : min<size_t>((this->egptr() - this-
>eback()) / 2, 4); |
| 584 int_type __c = traits_type::eof(); |
| 585 if (this->gptr() == this->egptr()) |
| 586 { |
| 587 memmove(this->eback(), this->egptr() - __unget_sz, __unget_sz * sizeof(c
har_type)); |
| 588 if (__always_noconv_) |
| 589 { |
| 590 size_t __nmemb = static_cast<size_t>(this->egptr() - this->eback() -
__unget_sz); |
| 591 __nmemb = fread(this->eback() + __unget_sz, 1, __nmemb, __file_); |
| 592 if (__nmemb != 0) |
| 593 { |
| 594 this->setg(this->eback(), |
| 595 this->eback() + __unget_sz, |
| 596 this->eback() + __unget_sz + __nmemb); |
| 597 __c = traits_type::to_int_type(*this->gptr()); |
| 598 } |
| 599 } |
| 600 else |
| 601 { |
| 602 memmove(__extbuf_, __extbufnext_, __extbufend_ - __extbufnext_); |
| 603 __extbufnext_ = __extbuf_ + (__extbufend_ - __extbufnext_); |
| 604 __extbufend_ = __extbuf_ + (__extbuf_ == __extbuf_min_ ? sizeof(__ex
tbuf_min_) : __ebs_); |
| 605 size_t __nmemb = _VSTD::min(static_cast<size_t>(__ibs_ - __unget_sz)
, |
| 606 static_cast<size_t>(__extbufend_ - __extbufnext
_)); |
| 607 codecvt_base::result __r; |
| 608 __st_last_ = __st_; |
| 609 size_t __nr = fread((void*)__extbufnext_, 1, __nmemb, __file_); |
| 610 if (__nr != 0) |
| 611 { |
| 612 #ifndef _LIBCPP_NO_EXCEPTIONS |
| 613 if (!__cv_) |
| 614 throw bad_cast(); |
| 615 #endif |
| 616 __extbufend_ = __extbufnext_ + __nr; |
| 617 char_type* __inext; |
| 618 __r = __cv_->in(__st_, __extbuf_, __extbufend_, __extbufnext_, |
| 619 this->eback() + __unget_sz, |
| 620 this->eback() + __ibs_, __inext); |
| 621 if (__r == codecvt_base::noconv) |
| 622 { |
| 623 this->setg((char_type*)__extbuf_, (char_type*)__extbuf_, (ch
ar_type*)__extbufend_); |
| 624 __c = traits_type::to_int_type(*this->gptr()); |
| 625 } |
| 626 else if (__inext != this->eback() + __unget_sz) |
| 627 { |
| 628 this->setg(this->eback(), this->eback() + __unget_sz, __inex
t); |
| 629 __c = traits_type::to_int_type(*this->gptr()); |
| 630 } |
| 631 } |
| 632 } |
| 633 } |
| 634 else |
| 635 __c = traits_type::to_int_type(*this->gptr()); |
| 636 if (this->eback() == &__1buf) |
| 637 this->setg(0, 0, 0); |
| 638 return __c; |
| 639 } |
| 640 |
| 641 template <class _CharT, class _Traits> |
| 642 typename basic_filebuf<_CharT, _Traits>::int_type |
| 643 basic_filebuf<_CharT, _Traits>::pbackfail(int_type __c) |
| 644 { |
| 645 if (__file_ && this->eback() < this->gptr()) |
| 646 { |
| 647 if (traits_type::eq_int_type(__c, traits_type::eof())) |
| 648 { |
| 649 this->gbump(-1); |
| 650 return traits_type::not_eof(__c); |
| 651 } |
| 652 if ((__om_ & ios_base::out) || |
| 653 traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) |
| 654 { |
| 655 this->gbump(-1); |
| 656 *this->gptr() = traits_type::to_char_type(__c); |
| 657 return __c; |
| 658 } |
| 659 } |
| 660 return traits_type::eof(); |
| 661 } |
| 662 |
| 663 template <class _CharT, class _Traits> |
| 664 typename basic_filebuf<_CharT, _Traits>::int_type |
| 665 basic_filebuf<_CharT, _Traits>::overflow(int_type __c) |
| 666 { |
| 667 if (__file_ == 0) |
| 668 return traits_type::eof(); |
| 669 __write_mode(); |
| 670 char_type __1buf; |
| 671 char_type* __pb_save = this->pbase(); |
| 672 char_type* __epb_save = this->epptr(); |
| 673 if (!traits_type::eq_int_type(__c, traits_type::eof())) |
| 674 { |
| 675 if (this->pptr() == 0) |
| 676 this->setp(&__1buf, &__1buf+1); |
| 677 *this->pptr() = traits_type::to_char_type(__c); |
| 678 this->pbump(1); |
| 679 } |
| 680 if (this->pptr() != this->pbase()) |
| 681 { |
| 682 if (__always_noconv_) |
| 683 { |
| 684 size_t __nmemb = static_cast<size_t>(this->pptr() - this->pbase()); |
| 685 if (fwrite(this->pbase(), sizeof(char_type), __nmemb, __file_) != __
nmemb) |
| 686 return traits_type::eof(); |
| 687 } |
| 688 else |
| 689 { |
| 690 char* __extbe = __extbuf_; |
| 691 codecvt_base::result __r; |
| 692 do |
| 693 { |
| 694 #ifndef _LIBCPP_NO_EXCEPTIONS |
| 695 if (!__cv_) |
| 696 throw bad_cast(); |
| 697 #endif |
| 698 const char_type* __e; |
| 699 __r = __cv_->out(__st_, this->pbase(), this->pptr(), __e, |
| 700 __extbuf_, __extbuf_ + __ebs_, __extbe); |
| 701 if (__e == this->pbase()) |
| 702 return traits_type::eof(); |
| 703 if (__r == codecvt_base::noconv) |
| 704 { |
| 705 size_t __nmemb = static_cast<size_t>(this->pptr() - this->pb
ase()); |
| 706 if (fwrite(this->pbase(), 1, __nmemb, __file_) != __nmemb) |
| 707 return traits_type::eof(); |
| 708 } |
| 709 else if (__r == codecvt_base::ok || __r == codecvt_base::partial
) |
| 710 { |
| 711 size_t __nmemb = static_cast<size_t>(__extbe - __extbuf_); |
| 712 if (fwrite(__extbuf_, 1, __nmemb, __file_) != __nmemb) |
| 713 return traits_type::eof(); |
| 714 if (__r == codecvt_base::partial) |
| 715 { |
| 716 this->setp((char_type*)__e, this->pptr()); |
| 717 this->pbump(this->epptr() - this->pbase()); |
| 718 } |
| 719 } |
| 720 else |
| 721 return traits_type::eof(); |
| 722 } while (__r == codecvt_base::partial); |
| 723 } |
| 724 this->setp(__pb_save, __epb_save); |
| 725 } |
| 726 return traits_type::not_eof(__c); |
| 727 } |
| 728 |
| 729 template <class _CharT, class _Traits> |
| 730 basic_streambuf<_CharT, _Traits>* |
| 731 basic_filebuf<_CharT, _Traits>::setbuf(char_type* __s, streamsize __n) |
| 732 { |
| 733 this->setg(0, 0, 0); |
| 734 this->setp(0, 0); |
| 735 if (__owns_eb_) |
| 736 delete [] __extbuf_; |
| 737 if (__owns_ib_) |
| 738 delete [] __intbuf_; |
| 739 __ebs_ = __n; |
| 740 if (__ebs_ > sizeof(__extbuf_min_)) |
| 741 { |
| 742 if (__always_noconv_ && __s) |
| 743 { |
| 744 __extbuf_ = (char*)__s; |
| 745 __owns_eb_ = false; |
| 746 } |
| 747 else |
| 748 { |
| 749 __extbuf_ = new char[__ebs_]; |
| 750 __owns_eb_ = true; |
| 751 } |
| 752 } |
| 753 else |
| 754 { |
| 755 __extbuf_ = __extbuf_min_; |
| 756 __ebs_ = sizeof(__extbuf_min_); |
| 757 __owns_eb_ = false; |
| 758 } |
| 759 if (!__always_noconv_) |
| 760 { |
| 761 __ibs_ = max<streamsize>(__n, sizeof(__extbuf_min_)); |
| 762 if (__s && __ibs_ >= sizeof(__extbuf_min_)) |
| 763 { |
| 764 __intbuf_ = __s; |
| 765 __owns_ib_ = false; |
| 766 } |
| 767 else |
| 768 { |
| 769 __intbuf_ = new char_type[__ibs_]; |
| 770 __owns_ib_ = true; |
| 771 } |
| 772 } |
| 773 else |
| 774 { |
| 775 __ibs_ = 0; |
| 776 __intbuf_ = 0; |
| 777 __owns_ib_ = false; |
| 778 } |
| 779 return this; |
| 780 } |
| 781 |
| 782 template <class _CharT, class _Traits> |
| 783 typename basic_filebuf<_CharT, _Traits>::pos_type |
| 784 basic_filebuf<_CharT, _Traits>::seekoff(off_type __off, ios_base::seekdir __way, |
| 785 ios_base::openmode) |
| 786 { |
| 787 #ifndef _LIBCPP_NO_EXCEPTIONS |
| 788 if (!__cv_) |
| 789 throw bad_cast(); |
| 790 #endif |
| 791 int __width = __cv_->encoding(); |
| 792 if (__file_ == 0 || (__width <= 0 && __off != 0) || sync()) |
| 793 return pos_type(off_type(-1)); |
| 794 // __width > 0 || __off == 0 |
| 795 int __whence; |
| 796 switch (__way) |
| 797 { |
| 798 case ios_base::beg: |
| 799 __whence = SEEK_SET; |
| 800 break; |
| 801 case ios_base::cur: |
| 802 __whence = SEEK_CUR; |
| 803 break; |
| 804 case ios_base::end: |
| 805 __whence = SEEK_END; |
| 806 break; |
| 807 default: |
| 808 return pos_type(off_type(-1)); |
| 809 } |
| 810 #if _WIN32 |
| 811 if (fseek(__file_, __width > 0 ? __width * __off : 0, __whence)) |
| 812 return pos_type(off_type(-1)); |
| 813 pos_type __r = ftell(__file_); |
| 814 #else |
| 815 if (fseeko(__file_, __width > 0 ? __width * __off : 0, __whence)) |
| 816 return pos_type(off_type(-1)); |
| 817 pos_type __r = ftello(__file_); |
| 818 #endif |
| 819 __r.state(__st_); |
| 820 return __r; |
| 821 } |
| 822 |
| 823 template <class _CharT, class _Traits> |
| 824 typename basic_filebuf<_CharT, _Traits>::pos_type |
| 825 basic_filebuf<_CharT, _Traits>::seekpos(pos_type __sp, ios_base::openmode) |
| 826 { |
| 827 if (__file_ == 0 || sync()) |
| 828 return pos_type(off_type(-1)); |
| 829 #if _WIN32 |
| 830 if (fseek(__file_, __sp, SEEK_SET)) |
| 831 return pos_type(off_type(-1)); |
| 832 #else |
| 833 if (fseeko(__file_, __sp, SEEK_SET)) |
| 834 return pos_type(off_type(-1)); |
| 835 #endif |
| 836 __st_ = __sp.state(); |
| 837 return __sp; |
| 838 } |
| 839 |
| 840 template <class _CharT, class _Traits> |
| 841 int |
| 842 basic_filebuf<_CharT, _Traits>::sync() |
| 843 { |
| 844 if (__file_ == 0) |
| 845 return 0; |
| 846 #ifndef _LIBCPP_NO_EXCEPTIONS |
| 847 if (!__cv_) |
| 848 throw bad_cast(); |
| 849 #endif |
| 850 if (__cm_ & ios_base::out) |
| 851 { |
| 852 if (this->pptr() != this->pbase()) |
| 853 if (overflow() == traits_type::eof()) |
| 854 return -1; |
| 855 codecvt_base::result __r; |
| 856 do |
| 857 { |
| 858 char* __extbe; |
| 859 __r = __cv_->unshift(__st_, __extbuf_, __extbuf_ + __ebs_, __extbe); |
| 860 size_t __nmemb = static_cast<size_t>(__extbe - __extbuf_); |
| 861 if (fwrite(__extbuf_, 1, __nmemb, __file_) != __nmemb) |
| 862 return -1; |
| 863 } while (__r == codecvt_base::partial); |
| 864 if (__r == codecvt_base::error) |
| 865 return -1; |
| 866 if (fflush(__file_)) |
| 867 return -1; |
| 868 } |
| 869 else if (__cm_ & ios_base::in) |
| 870 { |
| 871 off_type __c; |
| 872 state_type __state = __st_last_; |
| 873 bool __update_st = false; |
| 874 if (__always_noconv_) |
| 875 __c = this->egptr() - this->gptr(); |
| 876 else |
| 877 { |
| 878 int __width = __cv_->encoding(); |
| 879 __c = __extbufend_ - __extbufnext_; |
| 880 if (__width > 0) |
| 881 __c += __width * (this->egptr() - this->gptr()); |
| 882 else |
| 883 { |
| 884 if (this->gptr() != this->egptr()) |
| 885 { |
| 886 const int __off = __cv_->length(__state, __extbuf_, |
| 887 __extbufnext_, |
| 888 this->gptr() - this->eback(
)); |
| 889 __c += __extbufnext_ - __extbuf_ - __off; |
| 890 __update_st = true; |
| 891 } |
| 892 } |
| 893 } |
| 894 #if _WIN32 |
| 895 if (fseek(__file_, -__c, SEEK_CUR)) |
| 896 return -1; |
| 897 #else |
| 898 if (fseeko(__file_, -__c, SEEK_CUR)) |
| 899 return -1; |
| 900 #endif |
| 901 if (__update_st) |
| 902 __st_ = __state; |
| 903 __extbufnext_ = __extbufend_ = __extbuf_; |
| 904 this->setg(0, 0, 0); |
| 905 __cm_ = 0; |
| 906 } |
| 907 return 0; |
| 908 } |
| 909 |
| 910 template <class _CharT, class _Traits> |
| 911 void |
| 912 basic_filebuf<_CharT, _Traits>::imbue(const locale& __loc) |
| 913 { |
| 914 sync(); |
| 915 __cv_ = &use_facet<codecvt<char_type, char, state_type> >(__loc); |
| 916 bool __old_anc = __always_noconv_; |
| 917 __always_noconv_ = __cv_->always_noconv(); |
| 918 if (__old_anc != __always_noconv_) |
| 919 { |
| 920 this->setg(0, 0, 0); |
| 921 this->setp(0, 0); |
| 922 // invariant, char_type is char, else we couldn't get here |
| 923 if (__always_noconv_) // need to dump __intbuf_ |
| 924 { |
| 925 if (__owns_eb_) |
| 926 delete [] __extbuf_; |
| 927 __owns_eb_ = __owns_ib_; |
| 928 __ebs_ = __ibs_; |
| 929 __extbuf_ = (char*)__intbuf_; |
| 930 __ibs_ = 0; |
| 931 __intbuf_ = 0; |
| 932 __owns_ib_ = false; |
| 933 } |
| 934 else // need to obtain an __intbuf_. |
| 935 { // If __extbuf_ is user-supplied, use it, else new __intbuf_ |
| 936 if (!__owns_eb_ && __extbuf_ != __extbuf_min_) |
| 937 { |
| 938 __ibs_ = __ebs_; |
| 939 __intbuf_ = (char_type*)__extbuf_; |
| 940 __owns_ib_ = false; |
| 941 __extbuf_ = new char[__ebs_]; |
| 942 __owns_eb_ = true; |
| 943 } |
| 944 else |
| 945 { |
| 946 __ibs_ = __ebs_; |
| 947 __intbuf_ = new char_type[__ibs_]; |
| 948 __owns_ib_ = true; |
| 949 } |
| 950 } |
| 951 } |
| 952 } |
| 953 |
| 954 template <class _CharT, class _Traits> |
| 955 bool |
| 956 basic_filebuf<_CharT, _Traits>::__read_mode() |
| 957 { |
| 958 if (!(__cm_ & ios_base::in)) |
| 959 { |
| 960 this->setp(0, 0); |
| 961 if (__always_noconv_) |
| 962 this->setg((char_type*)__extbuf_, |
| 963 (char_type*)__extbuf_ + __ebs_, |
| 964 (char_type*)__extbuf_ + __ebs_); |
| 965 else |
| 966 this->setg(__intbuf_, __intbuf_ + __ibs_, __intbuf_ + __ibs_); |
| 967 __cm_ = ios_base::in; |
| 968 return true; |
| 969 } |
| 970 return false; |
| 971 } |
| 972 |
| 973 template <class _CharT, class _Traits> |
| 974 void |
| 975 basic_filebuf<_CharT, _Traits>::__write_mode() |
| 976 { |
| 977 if (!(__cm_ & ios_base::out)) |
| 978 { |
| 979 this->setg(0, 0, 0); |
| 980 if (__ebs_ > sizeof(__extbuf_min_)) |
| 981 { |
| 982 if (__always_noconv_) |
| 983 this->setp((char_type*)__extbuf_, |
| 984 (char_type*)__extbuf_ + (__ebs_ - 1)); |
| 985 else |
| 986 this->setp(__intbuf_, __intbuf_ + (__ibs_ - 1)); |
| 987 } |
| 988 else |
| 989 this->setp(0, 0); |
| 990 __cm_ = ios_base::out; |
| 991 } |
| 992 } |
| 993 |
| 994 // basic_ifstream |
| 995 |
| 996 template <class _CharT, class _Traits> |
| 997 class _LIBCPP_TYPE_VIS_ONLY basic_ifstream |
| 998 : public basic_istream<_CharT, _Traits> |
| 999 { |
| 1000 public: |
| 1001 typedef _CharT char_type; |
| 1002 typedef _Traits traits_type; |
| 1003 typedef typename traits_type::int_type int_type; |
| 1004 typedef typename traits_type::pos_type pos_type; |
| 1005 typedef typename traits_type::off_type off_type; |
| 1006 |
| 1007 basic_ifstream(); |
| 1008 explicit basic_ifstream(const char* __s, ios_base::openmode __mode = ios_bas
e::in); |
| 1009 explicit basic_ifstream(const string& __s, ios_base::openmode __mode = ios_b
ase::in); |
| 1010 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1011 basic_ifstream(basic_ifstream&& __rhs); |
| 1012 #endif |
| 1013 |
| 1014 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1015 basic_ifstream& operator=(basic_ifstream&& __rhs); |
| 1016 #endif |
| 1017 void swap(basic_ifstream& __rhs); |
| 1018 |
| 1019 basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 1020 bool is_open() const; |
| 1021 void open(const char* __s, ios_base::openmode __mode = ios_base::in); |
| 1022 void open(const string& __s, ios_base::openmode __mode = ios_base::in); |
| 1023 void close(); |
| 1024 |
| 1025 private: |
| 1026 basic_filebuf<char_type, traits_type> __sb_; |
| 1027 }; |
| 1028 |
| 1029 template <class _CharT, class _Traits> |
| 1030 inline _LIBCPP_INLINE_VISIBILITY |
| 1031 basic_ifstream<_CharT, _Traits>::basic_ifstream() |
| 1032 : basic_istream<char_type, traits_type>(&__sb_) |
| 1033 { |
| 1034 } |
| 1035 |
| 1036 template <class _CharT, class _Traits> |
| 1037 inline _LIBCPP_INLINE_VISIBILITY |
| 1038 basic_ifstream<_CharT, _Traits>::basic_ifstream(const char* __s, ios_base::openm
ode __mode) |
| 1039 : basic_istream<char_type, traits_type>(&__sb_) |
| 1040 { |
| 1041 if (__sb_.open(__s, __mode | ios_base::in) == 0) |
| 1042 this->setstate(ios_base::failbit); |
| 1043 } |
| 1044 |
| 1045 template <class _CharT, class _Traits> |
| 1046 inline _LIBCPP_INLINE_VISIBILITY |
| 1047 basic_ifstream<_CharT, _Traits>::basic_ifstream(const string& __s, ios_base::ope
nmode __mode) |
| 1048 : basic_istream<char_type, traits_type>(&__sb_) |
| 1049 { |
| 1050 if (__sb_.open(__s, __mode | ios_base::in) == 0) |
| 1051 this->setstate(ios_base::failbit); |
| 1052 } |
| 1053 |
| 1054 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1055 |
| 1056 template <class _CharT, class _Traits> |
| 1057 inline _LIBCPP_INLINE_VISIBILITY |
| 1058 basic_ifstream<_CharT, _Traits>::basic_ifstream(basic_ifstream&& __rhs) |
| 1059 : basic_istream<char_type, traits_type>(_VSTD::move(__rhs)), |
| 1060 __sb_(_VSTD::move(__rhs.__sb_)) |
| 1061 { |
| 1062 this->set_rdbuf(&__sb_); |
| 1063 } |
| 1064 |
| 1065 template <class _CharT, class _Traits> |
| 1066 inline _LIBCPP_INLINE_VISIBILITY |
| 1067 basic_ifstream<_CharT, _Traits>& |
| 1068 basic_ifstream<_CharT, _Traits>::operator=(basic_ifstream&& __rhs) |
| 1069 { |
| 1070 basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); |
| 1071 __sb_ = _VSTD::move(__rhs.__sb_); |
| 1072 return *this; |
| 1073 } |
| 1074 |
| 1075 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1076 |
| 1077 template <class _CharT, class _Traits> |
| 1078 inline _LIBCPP_INLINE_VISIBILITY |
| 1079 void |
| 1080 basic_ifstream<_CharT, _Traits>::swap(basic_ifstream& __rhs) |
| 1081 { |
| 1082 basic_istream<char_type, traits_type>::swap(__rhs); |
| 1083 __sb_.swap(__rhs.__sb_); |
| 1084 } |
| 1085 |
| 1086 template <class _CharT, class _Traits> |
| 1087 inline _LIBCPP_INLINE_VISIBILITY |
| 1088 void |
| 1089 swap(basic_ifstream<_CharT, _Traits>& __x, basic_ifstream<_CharT, _Traits>& __y) |
| 1090 { |
| 1091 __x.swap(__y); |
| 1092 } |
| 1093 |
| 1094 template <class _CharT, class _Traits> |
| 1095 inline _LIBCPP_INLINE_VISIBILITY |
| 1096 basic_filebuf<_CharT, _Traits>* |
| 1097 basic_ifstream<_CharT, _Traits>::rdbuf() const |
| 1098 { |
| 1099 return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); |
| 1100 } |
| 1101 |
| 1102 template <class _CharT, class _Traits> |
| 1103 inline _LIBCPP_INLINE_VISIBILITY |
| 1104 bool |
| 1105 basic_ifstream<_CharT, _Traits>::is_open() const |
| 1106 { |
| 1107 return __sb_.is_open(); |
| 1108 } |
| 1109 |
| 1110 template <class _CharT, class _Traits> |
| 1111 void |
| 1112 basic_ifstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode
) |
| 1113 { |
| 1114 if (__sb_.open(__s, __mode | ios_base::in)) |
| 1115 this->clear(); |
| 1116 else |
| 1117 this->setstate(ios_base::failbit); |
| 1118 } |
| 1119 |
| 1120 template <class _CharT, class _Traits> |
| 1121 void |
| 1122 basic_ifstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mo
de) |
| 1123 { |
| 1124 if (__sb_.open(__s, __mode | ios_base::in)) |
| 1125 this->clear(); |
| 1126 else |
| 1127 this->setstate(ios_base::failbit); |
| 1128 } |
| 1129 |
| 1130 template <class _CharT, class _Traits> |
| 1131 inline _LIBCPP_INLINE_VISIBILITY |
| 1132 void |
| 1133 basic_ifstream<_CharT, _Traits>::close() |
| 1134 { |
| 1135 if (__sb_.close() == 0) |
| 1136 this->setstate(ios_base::failbit); |
| 1137 } |
| 1138 |
| 1139 // basic_ofstream |
| 1140 |
| 1141 template <class _CharT, class _Traits> |
| 1142 class _LIBCPP_TYPE_VIS_ONLY basic_ofstream |
| 1143 : public basic_ostream<_CharT, _Traits> |
| 1144 { |
| 1145 public: |
| 1146 typedef _CharT char_type; |
| 1147 typedef _Traits traits_type; |
| 1148 typedef typename traits_type::int_type int_type; |
| 1149 typedef typename traits_type::pos_type pos_type; |
| 1150 typedef typename traits_type::off_type off_type; |
| 1151 |
| 1152 basic_ofstream(); |
| 1153 explicit basic_ofstream(const char* __s, ios_base::openmode __mode = ios_bas
e::out); |
| 1154 explicit basic_ofstream(const string& __s, ios_base::openmode __mode = ios_b
ase::out); |
| 1155 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1156 basic_ofstream(basic_ofstream&& __rhs); |
| 1157 #endif |
| 1158 |
| 1159 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1160 basic_ofstream& operator=(basic_ofstream&& __rhs); |
| 1161 #endif |
| 1162 void swap(basic_ofstream& __rhs); |
| 1163 |
| 1164 basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 1165 bool is_open() const; |
| 1166 void open(const char* __s, ios_base::openmode __mode = ios_base::out); |
| 1167 void open(const string& __s, ios_base::openmode __mode = ios_base::out); |
| 1168 void close(); |
| 1169 |
| 1170 private: |
| 1171 basic_filebuf<char_type, traits_type> __sb_; |
| 1172 }; |
| 1173 |
| 1174 template <class _CharT, class _Traits> |
| 1175 inline _LIBCPP_INLINE_VISIBILITY |
| 1176 basic_ofstream<_CharT, _Traits>::basic_ofstream() |
| 1177 : basic_ostream<char_type, traits_type>(&__sb_) |
| 1178 { |
| 1179 } |
| 1180 |
| 1181 template <class _CharT, class _Traits> |
| 1182 inline _LIBCPP_INLINE_VISIBILITY |
| 1183 basic_ofstream<_CharT, _Traits>::basic_ofstream(const char* __s, ios_base::openm
ode __mode) |
| 1184 : basic_ostream<char_type, traits_type>(&__sb_) |
| 1185 { |
| 1186 if (__sb_.open(__s, __mode | ios_base::out) == 0) |
| 1187 this->setstate(ios_base::failbit); |
| 1188 } |
| 1189 |
| 1190 template <class _CharT, class _Traits> |
| 1191 inline _LIBCPP_INLINE_VISIBILITY |
| 1192 basic_ofstream<_CharT, _Traits>::basic_ofstream(const string& __s, ios_base::ope
nmode __mode) |
| 1193 : basic_ostream<char_type, traits_type>(&__sb_) |
| 1194 { |
| 1195 if (__sb_.open(__s, __mode | ios_base::out) == 0) |
| 1196 this->setstate(ios_base::failbit); |
| 1197 } |
| 1198 |
| 1199 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1200 |
| 1201 template <class _CharT, class _Traits> |
| 1202 inline _LIBCPP_INLINE_VISIBILITY |
| 1203 basic_ofstream<_CharT, _Traits>::basic_ofstream(basic_ofstream&& __rhs) |
| 1204 : basic_ostream<char_type, traits_type>(_VSTD::move(__rhs)), |
| 1205 __sb_(_VSTD::move(__rhs.__sb_)) |
| 1206 { |
| 1207 this->set_rdbuf(&__sb_); |
| 1208 } |
| 1209 |
| 1210 template <class _CharT, class _Traits> |
| 1211 inline _LIBCPP_INLINE_VISIBILITY |
| 1212 basic_ofstream<_CharT, _Traits>& |
| 1213 basic_ofstream<_CharT, _Traits>::operator=(basic_ofstream&& __rhs) |
| 1214 { |
| 1215 basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); |
| 1216 __sb_ = _VSTD::move(__rhs.__sb_); |
| 1217 return *this; |
| 1218 } |
| 1219 |
| 1220 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1221 |
| 1222 template <class _CharT, class _Traits> |
| 1223 inline _LIBCPP_INLINE_VISIBILITY |
| 1224 void |
| 1225 basic_ofstream<_CharT, _Traits>::swap(basic_ofstream& __rhs) |
| 1226 { |
| 1227 basic_ostream<char_type, traits_type>::swap(__rhs); |
| 1228 __sb_.swap(__rhs.__sb_); |
| 1229 } |
| 1230 |
| 1231 template <class _CharT, class _Traits> |
| 1232 inline _LIBCPP_INLINE_VISIBILITY |
| 1233 void |
| 1234 swap(basic_ofstream<_CharT, _Traits>& __x, basic_ofstream<_CharT, _Traits>& __y) |
| 1235 { |
| 1236 __x.swap(__y); |
| 1237 } |
| 1238 |
| 1239 template <class _CharT, class _Traits> |
| 1240 inline _LIBCPP_INLINE_VISIBILITY |
| 1241 basic_filebuf<_CharT, _Traits>* |
| 1242 basic_ofstream<_CharT, _Traits>::rdbuf() const |
| 1243 { |
| 1244 return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); |
| 1245 } |
| 1246 |
| 1247 template <class _CharT, class _Traits> |
| 1248 inline _LIBCPP_INLINE_VISIBILITY |
| 1249 bool |
| 1250 basic_ofstream<_CharT, _Traits>::is_open() const |
| 1251 { |
| 1252 return __sb_.is_open(); |
| 1253 } |
| 1254 |
| 1255 template <class _CharT, class _Traits> |
| 1256 void |
| 1257 basic_ofstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode
) |
| 1258 { |
| 1259 if (__sb_.open(__s, __mode | ios_base::out)) |
| 1260 this->clear(); |
| 1261 else |
| 1262 this->setstate(ios_base::failbit); |
| 1263 } |
| 1264 |
| 1265 template <class _CharT, class _Traits> |
| 1266 void |
| 1267 basic_ofstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mo
de) |
| 1268 { |
| 1269 if (__sb_.open(__s, __mode | ios_base::out)) |
| 1270 this->clear(); |
| 1271 else |
| 1272 this->setstate(ios_base::failbit); |
| 1273 } |
| 1274 |
| 1275 template <class _CharT, class _Traits> |
| 1276 inline _LIBCPP_INLINE_VISIBILITY |
| 1277 void |
| 1278 basic_ofstream<_CharT, _Traits>::close() |
| 1279 { |
| 1280 if (__sb_.close() == 0) |
| 1281 this->setstate(ios_base::failbit); |
| 1282 } |
| 1283 |
| 1284 // basic_fstream |
| 1285 |
| 1286 template <class _CharT, class _Traits> |
| 1287 class _LIBCPP_TYPE_VIS_ONLY basic_fstream |
| 1288 : public basic_iostream<_CharT, _Traits> |
| 1289 { |
| 1290 public: |
| 1291 typedef _CharT char_type; |
| 1292 typedef _Traits traits_type; |
| 1293 typedef typename traits_type::int_type int_type; |
| 1294 typedef typename traits_type::pos_type pos_type; |
| 1295 typedef typename traits_type::off_type off_type; |
| 1296 |
| 1297 basic_fstream(); |
| 1298 explicit basic_fstream(const char* __s, ios_base::openmode __mode = ios_base
::in | ios_base::out); |
| 1299 explicit basic_fstream(const string& __s, ios_base::openmode __mode = ios_ba
se::in | ios_base::out); |
| 1300 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1301 basic_fstream(basic_fstream&& __rhs); |
| 1302 #endif |
| 1303 |
| 1304 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1305 basic_fstream& operator=(basic_fstream&& __rhs); |
| 1306 #endif |
| 1307 void swap(basic_fstream& __rhs); |
| 1308 |
| 1309 basic_filebuf<char_type, traits_type>* rdbuf() const; |
| 1310 bool is_open() const; |
| 1311 void open(const char* __s, ios_base::openmode __mode = ios_base::in | ios_ba
se::out); |
| 1312 void open(const string& __s, ios_base::openmode __mode = ios_base::in | ios_
base::out); |
| 1313 void close(); |
| 1314 |
| 1315 private: |
| 1316 basic_filebuf<char_type, traits_type> __sb_; |
| 1317 }; |
| 1318 |
| 1319 template <class _CharT, class _Traits> |
| 1320 inline _LIBCPP_INLINE_VISIBILITY |
| 1321 basic_fstream<_CharT, _Traits>::basic_fstream() |
| 1322 : basic_iostream<char_type, traits_type>(&__sb_) |
| 1323 { |
| 1324 } |
| 1325 |
| 1326 template <class _CharT, class _Traits> |
| 1327 inline _LIBCPP_INLINE_VISIBILITY |
| 1328 basic_fstream<_CharT, _Traits>::basic_fstream(const char* __s, ios_base::openmod
e __mode) |
| 1329 : basic_iostream<char_type, traits_type>(&__sb_) |
| 1330 { |
| 1331 if (__sb_.open(__s, __mode) == 0) |
| 1332 this->setstate(ios_base::failbit); |
| 1333 } |
| 1334 |
| 1335 template <class _CharT, class _Traits> |
| 1336 inline _LIBCPP_INLINE_VISIBILITY |
| 1337 basic_fstream<_CharT, _Traits>::basic_fstream(const string& __s, ios_base::openm
ode __mode) |
| 1338 : basic_iostream<char_type, traits_type>(&__sb_) |
| 1339 { |
| 1340 if (__sb_.open(__s, __mode) == 0) |
| 1341 this->setstate(ios_base::failbit); |
| 1342 } |
| 1343 |
| 1344 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1345 |
| 1346 template <class _CharT, class _Traits> |
| 1347 inline _LIBCPP_INLINE_VISIBILITY |
| 1348 basic_fstream<_CharT, _Traits>::basic_fstream(basic_fstream&& __rhs) |
| 1349 : basic_iostream<char_type, traits_type>(_VSTD::move(__rhs)), |
| 1350 __sb_(_VSTD::move(__rhs.__sb_)) |
| 1351 { |
| 1352 this->set_rdbuf(&__sb_); |
| 1353 } |
| 1354 |
| 1355 template <class _CharT, class _Traits> |
| 1356 inline _LIBCPP_INLINE_VISIBILITY |
| 1357 basic_fstream<_CharT, _Traits>& |
| 1358 basic_fstream<_CharT, _Traits>::operator=(basic_fstream&& __rhs) |
| 1359 { |
| 1360 basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); |
| 1361 __sb_ = _VSTD::move(__rhs.__sb_); |
| 1362 return *this; |
| 1363 } |
| 1364 |
| 1365 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| 1366 |
| 1367 template <class _CharT, class _Traits> |
| 1368 inline _LIBCPP_INLINE_VISIBILITY |
| 1369 void |
| 1370 basic_fstream<_CharT, _Traits>::swap(basic_fstream& __rhs) |
| 1371 { |
| 1372 basic_iostream<char_type, traits_type>::swap(__rhs); |
| 1373 __sb_.swap(__rhs.__sb_); |
| 1374 } |
| 1375 |
| 1376 template <class _CharT, class _Traits> |
| 1377 inline _LIBCPP_INLINE_VISIBILITY |
| 1378 void |
| 1379 swap(basic_fstream<_CharT, _Traits>& __x, basic_fstream<_CharT, _Traits>& __y) |
| 1380 { |
| 1381 __x.swap(__y); |
| 1382 } |
| 1383 |
| 1384 template <class _CharT, class _Traits> |
| 1385 inline _LIBCPP_INLINE_VISIBILITY |
| 1386 basic_filebuf<_CharT, _Traits>* |
| 1387 basic_fstream<_CharT, _Traits>::rdbuf() const |
| 1388 { |
| 1389 return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); |
| 1390 } |
| 1391 |
| 1392 template <class _CharT, class _Traits> |
| 1393 inline _LIBCPP_INLINE_VISIBILITY |
| 1394 bool |
| 1395 basic_fstream<_CharT, _Traits>::is_open() const |
| 1396 { |
| 1397 return __sb_.is_open(); |
| 1398 } |
| 1399 |
| 1400 template <class _CharT, class _Traits> |
| 1401 void |
| 1402 basic_fstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) |
| 1403 { |
| 1404 if (__sb_.open(__s, __mode)) |
| 1405 this->clear(); |
| 1406 else |
| 1407 this->setstate(ios_base::failbit); |
| 1408 } |
| 1409 |
| 1410 template <class _CharT, class _Traits> |
| 1411 void |
| 1412 basic_fstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mod
e) |
| 1413 { |
| 1414 if (__sb_.open(__s, __mode)) |
| 1415 this->clear(); |
| 1416 else |
| 1417 this->setstate(ios_base::failbit); |
| 1418 } |
| 1419 |
| 1420 template <class _CharT, class _Traits> |
| 1421 inline _LIBCPP_INLINE_VISIBILITY |
| 1422 void |
| 1423 basic_fstream<_CharT, _Traits>::close() |
| 1424 { |
| 1425 if (__sb_.close() == 0) |
| 1426 this->setstate(ios_base::failbit); |
| 1427 } |
| 1428 |
| 1429 _LIBCPP_END_NAMESPACE_STD |
| 1430 |
| 1431 #endif // _LIBCPP_FSTREAM |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 75213003:
Add libc++ and libc++abi to third-party. (Closed)
Base URL: https://src.chromium.org/chrome/trunk/src/