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| 1 // -*- C++ -*- |
| 2 //===------------------------- streambuf ----------------------------------===// |
| 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_STEAMBUF |
| 12 #define _LIBCPP_STEAMBUF |
| 13 |
| 14 /* |
| 15 streambuf synopsis |
| 16 |
| 17 namespace std |
| 18 { |
| 19 |
| 20 template <class charT, class traits = char_traits<charT> > |
| 21 class basic_streambuf |
| 22 { |
| 23 public: |
| 24 // types: |
| 25 typedef charT char_type; |
| 26 typedef traits traits_type; |
| 27 typedef typename traits_type::int_type int_type; |
| 28 typedef typename traits_type::pos_type pos_type; |
| 29 typedef typename traits_type::off_type off_type; |
| 30 |
| 31 virtual ~basic_streambuf(); |
| 32 |
| 33 // 27.6.2.2.1 locales: |
| 34 locale pubimbue(const locale& loc); |
| 35 locale getloc() const; |
| 36 |
| 37 // 27.6.2.2.2 buffer and positioning: |
| 38 basic_streambuf* pubsetbuf(char_type* s, streamsize n); |
| 39 pos_type pubseekoff(off_type off, ios_base::seekdir way, |
| 40 ios_base::openmode which = ios_base::in | ios_base::out)
; |
| 41 pos_type pubseekpos(pos_type sp, |
| 42 ios_base::openmode which = ios_base::in | ios_base::out)
; |
| 43 int pubsync(); |
| 44 |
| 45 // Get and put areas: |
| 46 // 27.6.2.2.3 Get area: |
| 47 streamsize in_avail(); |
| 48 int_type snextc(); |
| 49 int_type sbumpc(); |
| 50 int_type sgetc(); |
| 51 streamsize sgetn(char_type* s, streamsize n); |
| 52 |
| 53 // 27.6.2.2.4 Putback: |
| 54 int_type sputbackc(char_type c); |
| 55 int_type sungetc(); |
| 56 |
| 57 // 27.6.2.2.5 Put area: |
| 58 int_type sputc(char_type c); |
| 59 streamsize sputn(const char_type* s, streamsize n); |
| 60 |
| 61 protected: |
| 62 basic_streambuf(); |
| 63 basic_streambuf(const basic_streambuf& rhs); |
| 64 basic_streambuf& operator=(const basic_streambuf& rhs); |
| 65 void swap(basic_streambuf& rhs); |
| 66 |
| 67 // 27.6.2.3.2 Get area: |
| 68 char_type* eback() const; |
| 69 char_type* gptr() const; |
| 70 char_type* egptr() const; |
| 71 void gbump(int n); |
| 72 void setg(char_type* gbeg, char_type* gnext, char_type* gend); |
| 73 |
| 74 // 27.6.2.3.3 Put area: |
| 75 char_type* pbase() const; |
| 76 char_type* pptr() const; |
| 77 char_type* epptr() const; |
| 78 void pbump(int n); |
| 79 void setp(char_type* pbeg, char_type* pend); |
| 80 |
| 81 // 27.6.2.4 virtual functions: |
| 82 // 27.6.2.4.1 Locales: |
| 83 virtual void imbue(const locale& loc); |
| 84 |
| 85 // 27.6.2.4.2 Buffer management and positioning: |
| 86 virtual basic_streambuf* setbuf(char_type* s, streamsize n); |
| 87 virtual pos_type seekoff(off_type off, ios_base::seekdir way, |
| 88 ios_base::openmode which = ios_base::in | ios_base:
:out); |
| 89 virtual pos_type seekpos(pos_type sp, |
| 90 ios_base::openmode which = ios_base::in | ios_base:
:out); |
| 91 virtual int sync(); |
| 92 |
| 93 // 27.6.2.4.3 Get area: |
| 94 virtual streamsize showmanyc(); |
| 95 virtual streamsize xsgetn(char_type* s, streamsize n); |
| 96 virtual int_type underflow(); |
| 97 virtual int_type uflow(); |
| 98 |
| 99 // 27.6.2.4.4 Putback: |
| 100 virtual int_type pbackfail(int_type c = traits_type::eof()); |
| 101 |
| 102 // 27.6.2.4.5 Put area: |
| 103 virtual streamsize xsputn(const char_type* s, streamsize n); |
| 104 virtual int_type overflow (int_type c = traits_type::eof()); |
| 105 }; |
| 106 |
| 107 } // std |
| 108 |
| 109 */ |
| 110 |
| 111 #include <__config> |
| 112 #include <iosfwd> |
| 113 #include <ios> |
| 114 |
| 115 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 116 #pragma GCC system_header |
| 117 #endif |
| 118 |
| 119 _LIBCPP_BEGIN_NAMESPACE_STD |
| 120 |
| 121 template <class _CharT, class _Traits> |
| 122 class _LIBCPP_TYPE_VIS_ONLY basic_streambuf |
| 123 { |
| 124 public: |
| 125 // types: |
| 126 typedef _CharT char_type; |
| 127 typedef _Traits traits_type; |
| 128 typedef typename traits_type::int_type int_type; |
| 129 typedef typename traits_type::pos_type pos_type; |
| 130 typedef typename traits_type::off_type off_type; |
| 131 |
| 132 virtual ~basic_streambuf(); |
| 133 |
| 134 // 27.6.2.2.1 locales: |
| 135 locale pubimbue(const locale& __loc); |
| 136 locale getloc() const; |
| 137 |
| 138 // 27.6.2.2.2 buffer and positioning: |
| 139 basic_streambuf* pubsetbuf(char_type* __s, streamsize __n); |
| 140 pos_type pubseekoff(off_type __off, ios_base::seekdir __way, |
| 141 ios_base::openmode __which = ios_base::in | ios_base::ou
t); |
| 142 pos_type pubseekpos(pos_type __sp, |
| 143 ios_base::openmode __which = ios_base::in | ios_base::ou
t); |
| 144 int pubsync(); |
| 145 |
| 146 // Get and put areas: |
| 147 // 27.6.2.2.3 Get area: |
| 148 streamsize in_avail(); |
| 149 int_type snextc(); |
| 150 int_type sbumpc(); |
| 151 int_type sgetc(); |
| 152 streamsize sgetn(char_type* __s, streamsize __n); |
| 153 |
| 154 // 27.6.2.2.4 Putback: |
| 155 int_type sputbackc(char_type __c); |
| 156 int_type sungetc(); |
| 157 |
| 158 // 27.6.2.2.5 Put area: |
| 159 int_type sputc(char_type __c); |
| 160 streamsize sputn(const char_type* __s, streamsize __n); |
| 161 |
| 162 protected: |
| 163 basic_streambuf(); |
| 164 basic_streambuf(const basic_streambuf& __rhs); |
| 165 basic_streambuf& operator=(const basic_streambuf& __rhs); |
| 166 void swap(basic_streambuf& __rhs); |
| 167 |
| 168 // 27.6.2.3.2 Get area: |
| 169 _LIBCPP_ALWAYS_INLINE char_type* eback() const {return __binp_;} |
| 170 _LIBCPP_ALWAYS_INLINE char_type* gptr() const {return __ninp_;} |
| 171 _LIBCPP_ALWAYS_INLINE char_type* egptr() const {return __einp_;} |
| 172 void gbump(int __n); |
| 173 void setg(char_type* __gbeg, char_type* __gnext, char_type* __gend); |
| 174 |
| 175 // 27.6.2.3.3 Put area: |
| 176 _LIBCPP_ALWAYS_INLINE char_type* pbase() const {return __bout_;} |
| 177 _LIBCPP_ALWAYS_INLINE char_type* pptr() const {return __nout_;} |
| 178 _LIBCPP_ALWAYS_INLINE char_type* epptr() const {return __eout_;} |
| 179 void pbump(int __n); |
| 180 void setp(char_type* __pbeg, char_type* __pend); |
| 181 |
| 182 // 27.6.2.4 virtual functions: |
| 183 // 27.6.2.4.1 Locales: |
| 184 virtual void imbue(const locale& __loc); |
| 185 |
| 186 // 27.6.2.4.2 Buffer management and positioning: |
| 187 virtual basic_streambuf* setbuf(char_type* __s, streamsize __n); |
| 188 virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, |
| 189 ios_base::openmode __which = ios_base::in | ios_bas
e::out); |
| 190 virtual pos_type seekpos(pos_type __sp, |
| 191 ios_base::openmode __which = ios_base::in | ios_bas
e::out); |
| 192 virtual int sync(); |
| 193 |
| 194 // 27.6.2.4.3 Get area: |
| 195 virtual streamsize showmanyc(); |
| 196 virtual streamsize xsgetn(char_type* __s, streamsize __n); |
| 197 virtual int_type underflow(); |
| 198 virtual int_type uflow(); |
| 199 |
| 200 // 27.6.2.4.4 Putback: |
| 201 virtual int_type pbackfail(int_type __c = traits_type::eof()); |
| 202 |
| 203 // 27.6.2.4.5 Put area: |
| 204 virtual streamsize xsputn(const char_type* __s, streamsize __n); |
| 205 virtual int_type overflow(int_type __c = traits_type::eof()); |
| 206 |
| 207 private: |
| 208 locale __loc_; |
| 209 char_type* __binp_; |
| 210 char_type* __ninp_; |
| 211 char_type* __einp_; |
| 212 char_type* __bout_; |
| 213 char_type* __nout_; |
| 214 char_type* __eout_; |
| 215 }; |
| 216 |
| 217 template <class _CharT, class _Traits> |
| 218 basic_streambuf<_CharT, _Traits>::~basic_streambuf() |
| 219 { |
| 220 } |
| 221 |
| 222 template <class _CharT, class _Traits> |
| 223 inline _LIBCPP_INLINE_VISIBILITY |
| 224 locale |
| 225 basic_streambuf<_CharT, _Traits>::pubimbue(const locale& __loc) |
| 226 { |
| 227 imbue(__loc); |
| 228 locale __r = __loc_; |
| 229 __loc_ = __loc; |
| 230 return __r; |
| 231 } |
| 232 |
| 233 template <class _CharT, class _Traits> |
| 234 inline _LIBCPP_INLINE_VISIBILITY |
| 235 locale |
| 236 basic_streambuf<_CharT, _Traits>::getloc() const |
| 237 { |
| 238 return __loc_; |
| 239 } |
| 240 |
| 241 template <class _CharT, class _Traits> |
| 242 inline _LIBCPP_INLINE_VISIBILITY |
| 243 basic_streambuf<_CharT, _Traits>* |
| 244 basic_streambuf<_CharT, _Traits>::pubsetbuf(char_type* __s, streamsize __n) |
| 245 { |
| 246 return setbuf(__s, __n); |
| 247 } |
| 248 |
| 249 template <class _CharT, class _Traits> |
| 250 inline _LIBCPP_INLINE_VISIBILITY |
| 251 typename basic_streambuf<_CharT, _Traits>::pos_type |
| 252 basic_streambuf<_CharT, _Traits>::pubseekoff(off_type __off, |
| 253 ios_base::seekdir __way, |
| 254 ios_base::openmode __which) |
| 255 { |
| 256 return seekoff(__off, __way, __which); |
| 257 } |
| 258 |
| 259 template <class _CharT, class _Traits> |
| 260 inline _LIBCPP_INLINE_VISIBILITY |
| 261 typename basic_streambuf<_CharT, _Traits>::pos_type |
| 262 basic_streambuf<_CharT, _Traits>::pubseekpos(pos_type __sp, |
| 263 ios_base::openmode __which) |
| 264 { |
| 265 return seekpos(__sp, __which); |
| 266 } |
| 267 |
| 268 template <class _CharT, class _Traits> |
| 269 inline _LIBCPP_INLINE_VISIBILITY |
| 270 int |
| 271 basic_streambuf<_CharT, _Traits>::pubsync() |
| 272 { |
| 273 return sync(); |
| 274 } |
| 275 |
| 276 template <class _CharT, class _Traits> |
| 277 inline _LIBCPP_INLINE_VISIBILITY |
| 278 streamsize |
| 279 basic_streambuf<_CharT, _Traits>::in_avail() |
| 280 { |
| 281 if (__ninp_ < __einp_) |
| 282 return static_cast<streamsize>(__einp_ - __ninp_); |
| 283 return showmanyc(); |
| 284 } |
| 285 |
| 286 template <class _CharT, class _Traits> |
| 287 inline _LIBCPP_INLINE_VISIBILITY |
| 288 typename basic_streambuf<_CharT, _Traits>::int_type |
| 289 basic_streambuf<_CharT, _Traits>::snextc() |
| 290 { |
| 291 if (sbumpc() == traits_type::eof()) |
| 292 return traits_type::eof(); |
| 293 return sgetc(); |
| 294 } |
| 295 |
| 296 template <class _CharT, class _Traits> |
| 297 inline _LIBCPP_INLINE_VISIBILITY |
| 298 typename basic_streambuf<_CharT, _Traits>::int_type |
| 299 basic_streambuf<_CharT, _Traits>::sbumpc() |
| 300 { |
| 301 if (__ninp_ == __einp_) |
| 302 return uflow(); |
| 303 return traits_type::to_int_type(*__ninp_++); |
| 304 } |
| 305 |
| 306 template <class _CharT, class _Traits> |
| 307 inline _LIBCPP_INLINE_VISIBILITY |
| 308 typename basic_streambuf<_CharT, _Traits>::int_type |
| 309 basic_streambuf<_CharT, _Traits>::sgetc() |
| 310 { |
| 311 if (__ninp_ == __einp_) |
| 312 return underflow(); |
| 313 return traits_type::to_int_type(*__ninp_); |
| 314 } |
| 315 |
| 316 template <class _CharT, class _Traits> |
| 317 inline _LIBCPP_INLINE_VISIBILITY |
| 318 streamsize |
| 319 basic_streambuf<_CharT, _Traits>::sgetn(char_type* __s, streamsize __n) |
| 320 { |
| 321 return xsgetn(__s, __n); |
| 322 } |
| 323 |
| 324 template <class _CharT, class _Traits> |
| 325 inline _LIBCPP_INLINE_VISIBILITY |
| 326 typename basic_streambuf<_CharT, _Traits>::int_type |
| 327 basic_streambuf<_CharT, _Traits>::sputbackc(char_type __c) |
| 328 { |
| 329 if (__binp_ == __ninp_ || !traits_type::eq(__c, __ninp_[-1])) |
| 330 return pbackfail(traits_type::to_int_type(__c)); |
| 331 return traits_type::to_int_type(*--__ninp_); |
| 332 } |
| 333 |
| 334 template <class _CharT, class _Traits> |
| 335 inline _LIBCPP_INLINE_VISIBILITY |
| 336 typename basic_streambuf<_CharT, _Traits>::int_type |
| 337 basic_streambuf<_CharT, _Traits>::sungetc() |
| 338 { |
| 339 if (__binp_ == __ninp_) |
| 340 return pbackfail(); |
| 341 return traits_type::to_int_type(*--__ninp_); |
| 342 } |
| 343 |
| 344 template <class _CharT, class _Traits> |
| 345 inline _LIBCPP_INLINE_VISIBILITY |
| 346 typename basic_streambuf<_CharT, _Traits>::int_type |
| 347 basic_streambuf<_CharT, _Traits>::sputc(char_type __c) |
| 348 { |
| 349 if (__nout_ == __eout_) |
| 350 return overflow(traits_type::to_int_type(__c)); |
| 351 *__nout_++ = __c; |
| 352 return traits_type::to_int_type(__c); |
| 353 } |
| 354 |
| 355 template <class _CharT, class _Traits> |
| 356 inline _LIBCPP_INLINE_VISIBILITY |
| 357 streamsize |
| 358 basic_streambuf<_CharT, _Traits>::sputn(const char_type* __s, streamsize __n) |
| 359 { |
| 360 return xsputn(__s, __n); |
| 361 } |
| 362 |
| 363 template <class _CharT, class _Traits> |
| 364 basic_streambuf<_CharT, _Traits>::basic_streambuf() |
| 365 : __binp_(0), |
| 366 __ninp_(0), |
| 367 __einp_(0), |
| 368 __bout_(0), |
| 369 __nout_(0), |
| 370 __eout_(0) |
| 371 { |
| 372 } |
| 373 |
| 374 template <class _CharT, class _Traits> |
| 375 basic_streambuf<_CharT, _Traits>::basic_streambuf(const basic_streambuf& __sb) |
| 376 : __loc_(__sb.__loc_), |
| 377 __binp_(__sb.__binp_), |
| 378 __ninp_(__sb.__ninp_), |
| 379 __einp_(__sb.__einp_), |
| 380 __bout_(__sb.__bout_), |
| 381 __nout_(__sb.__nout_), |
| 382 __eout_(__sb.__eout_) |
| 383 { |
| 384 } |
| 385 |
| 386 template <class _CharT, class _Traits> |
| 387 basic_streambuf<_CharT, _Traits>& |
| 388 basic_streambuf<_CharT, _Traits>::operator=(const basic_streambuf& __sb) |
| 389 { |
| 390 __loc_ = __sb.__loc_; |
| 391 __binp_ = __sb.__binp_; |
| 392 __ninp_ = __sb.__ninp_; |
| 393 __einp_ = __sb.__einp_; |
| 394 __bout_ = __sb.__bout_; |
| 395 __nout_ = __sb.__nout_; |
| 396 __eout_ = __sb.__eout_; |
| 397 return *this; |
| 398 } |
| 399 |
| 400 template <class _CharT, class _Traits> |
| 401 void |
| 402 basic_streambuf<_CharT, _Traits>::swap(basic_streambuf& __sb) |
| 403 { |
| 404 _VSTD::swap(__loc_, __sb.__loc_); |
| 405 _VSTD::swap(__binp_, __sb.__binp_); |
| 406 _VSTD::swap(__ninp_, __sb.__ninp_); |
| 407 _VSTD::swap(__einp_, __sb.__einp_); |
| 408 _VSTD::swap(__bout_, __sb.__bout_); |
| 409 _VSTD::swap(__nout_, __sb.__nout_); |
| 410 _VSTD::swap(__eout_, __sb.__eout_); |
| 411 } |
| 412 |
| 413 template <class _CharT, class _Traits> |
| 414 inline _LIBCPP_INLINE_VISIBILITY |
| 415 void |
| 416 basic_streambuf<_CharT, _Traits>::gbump(int __n) |
| 417 { |
| 418 __ninp_ += __n; |
| 419 } |
| 420 |
| 421 template <class _CharT, class _Traits> |
| 422 inline _LIBCPP_INLINE_VISIBILITY |
| 423 void |
| 424 basic_streambuf<_CharT, _Traits>::setg(char_type* __gbeg, char_type* __gnext, |
| 425 char_type* __gend) |
| 426 { |
| 427 __binp_ = __gbeg; |
| 428 __ninp_ = __gnext; |
| 429 __einp_ = __gend; |
| 430 } |
| 431 |
| 432 template <class _CharT, class _Traits> |
| 433 inline _LIBCPP_INLINE_VISIBILITY |
| 434 void |
| 435 basic_streambuf<_CharT, _Traits>::pbump(int __n) |
| 436 { |
| 437 __nout_ += __n; |
| 438 } |
| 439 |
| 440 template <class _CharT, class _Traits> |
| 441 inline _LIBCPP_INLINE_VISIBILITY |
| 442 void |
| 443 basic_streambuf<_CharT, _Traits>::setp(char_type* __pbeg, char_type* __pend) |
| 444 { |
| 445 __bout_ = __nout_ = __pbeg; |
| 446 __eout_ = __pend; |
| 447 } |
| 448 |
| 449 template <class _CharT, class _Traits> |
| 450 void |
| 451 basic_streambuf<_CharT, _Traits>::imbue(const locale&) |
| 452 { |
| 453 } |
| 454 |
| 455 template <class _CharT, class _Traits> |
| 456 basic_streambuf<_CharT, _Traits>* |
| 457 basic_streambuf<_CharT, _Traits>::setbuf(char_type*, streamsize) |
| 458 { |
| 459 return this; |
| 460 } |
| 461 |
| 462 template <class _CharT, class _Traits> |
| 463 typename basic_streambuf<_CharT, _Traits>::pos_type |
| 464 basic_streambuf<_CharT, _Traits>::seekoff(off_type, ios_base::seekdir, |
| 465 ios_base::openmode) |
| 466 { |
| 467 return pos_type(off_type(-1)); |
| 468 } |
| 469 |
| 470 template <class _CharT, class _Traits> |
| 471 typename basic_streambuf<_CharT, _Traits>::pos_type |
| 472 basic_streambuf<_CharT, _Traits>::seekpos(pos_type, ios_base::openmode) |
| 473 { |
| 474 return pos_type(off_type(-1)); |
| 475 } |
| 476 |
| 477 template <class _CharT, class _Traits> |
| 478 int |
| 479 basic_streambuf<_CharT, _Traits>::sync() |
| 480 { |
| 481 return 0; |
| 482 } |
| 483 |
| 484 template <class _CharT, class _Traits> |
| 485 streamsize |
| 486 basic_streambuf<_CharT, _Traits>::showmanyc() |
| 487 { |
| 488 return 0; |
| 489 } |
| 490 |
| 491 template <class _CharT, class _Traits> |
| 492 streamsize |
| 493 basic_streambuf<_CharT, _Traits>::xsgetn(char_type* __s, streamsize __n) |
| 494 { |
| 495 const int_type __eof = traits_type::eof(); |
| 496 int_type __c; |
| 497 streamsize __i = 0; |
| 498 for (;__i < __n; ++__i, ++__s) |
| 499 { |
| 500 if (__ninp_ < __einp_) |
| 501 *__s = *__ninp_++; |
| 502 else if ((__c = uflow()) != __eof) |
| 503 *__s = traits_type::to_char_type(__c); |
| 504 else |
| 505 break; |
| 506 } |
| 507 return __i; |
| 508 } |
| 509 |
| 510 template <class _CharT, class _Traits> |
| 511 typename basic_streambuf<_CharT, _Traits>::int_type |
| 512 basic_streambuf<_CharT, _Traits>::underflow() |
| 513 { |
| 514 return traits_type::eof(); |
| 515 } |
| 516 |
| 517 template <class _CharT, class _Traits> |
| 518 typename basic_streambuf<_CharT, _Traits>::int_type |
| 519 basic_streambuf<_CharT, _Traits>::uflow() |
| 520 { |
| 521 if (underflow() == traits_type::eof()) |
| 522 return traits_type::eof(); |
| 523 return traits_type::to_int_type(*__ninp_++); |
| 524 } |
| 525 |
| 526 template <class _CharT, class _Traits> |
| 527 typename basic_streambuf<_CharT, _Traits>::int_type |
| 528 basic_streambuf<_CharT, _Traits>::pbackfail(int_type) |
| 529 { |
| 530 return traits_type::eof(); |
| 531 } |
| 532 |
| 533 template <class _CharT, class _Traits> |
| 534 streamsize |
| 535 basic_streambuf<_CharT, _Traits>::xsputn(const char_type* __s, streamsize __n) |
| 536 { |
| 537 streamsize __i = 0; |
| 538 int_type __eof = traits_type::eof(); |
| 539 for (; __i < __n; ++__s, ++__i) |
| 540 { |
| 541 if (__nout_ < __eout_) |
| 542 *__nout_++ = *__s; |
| 543 else if (overflow(traits_type::to_int_type(*__s)) == __eof) |
| 544 break; |
| 545 } |
| 546 return __i; |
| 547 } |
| 548 |
| 549 template <class _CharT, class _Traits> |
| 550 typename basic_streambuf<_CharT, _Traits>::int_type |
| 551 basic_streambuf<_CharT, _Traits>::overflow(int_type) |
| 552 { |
| 553 return traits_type::eof(); |
| 554 } |
| 555 |
| 556 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_streambuf<char>) |
| 557 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_streambuf<wchar_t>) |
| 558 |
| 559 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_ios<char>) |
| 560 _LIBCPP_EXTERN_TEMPLATE(class _LIBCPP_TYPE_VIS basic_ios<wchar_t>) |
| 561 |
| 562 _LIBCPP_END_NAMESPACE_STD |
| 563 |
| 564 #endif // _LIBCPP_STEAMBUF |
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