1// -*- C++ -*- 2//===--------------------------- istream ----------------------------------===// 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_ISTREAM 12#define _LIBCPP_ISTREAM 13 14/* 15 istream synopsis 16 17template <class charT, class traits = char_traits<charT> > 18class basic_istream 19 : virtual public basic_ios<charT,traits> 20{ 21public: 22 // types (inherited from basic_ios (27.5.4)): 23 typedef charT char_type; 24 typedef traits traits_type; 25 typedef typename traits_type::int_type int_type; 26 typedef typename traits_type::pos_type pos_type; 27 typedef typename traits_type::off_type off_type; 28 29 // 27.7.1.1.1 Constructor/destructor: 30 explicit basic_istream(basic_streambuf<char_type, traits_type>* sb); 31 basic_istream(basic_istream&& rhs); 32 virtual ~basic_istream(); 33 34 // 27.7.1.1.2 Assign/swap: 35 basic_istream& operator=(basic_istream&& rhs); 36 void swap(basic_istream& rhs); 37 38 // 27.7.1.1.3 Prefix/suffix: 39 class sentry; 40 41 // 27.7.1.2 Formatted input: 42 basic_istream& operator>>(basic_istream& (*pf)(basic_istream&)); 43 basic_istream& operator>>(basic_ios<char_type, traits_type>& 44 (*pf)(basic_ios<char_type, traits_type>&)); 45 basic_istream& operator>>(ios_base& (*pf)(ios_base&)); 46 basic_istream& operator>>(basic_streambuf<char_type, traits_type>* sb); 47 basic_istream& operator>>(bool& n); 48 basic_istream& operator>>(short& n); 49 basic_istream& operator>>(unsigned short& n); 50 basic_istream& operator>>(int& n); 51 basic_istream& operator>>(unsigned int& n); 52 basic_istream& operator>>(long& n); 53 basic_istream& operator>>(unsigned long& n); 54 basic_istream& operator>>(long long& n); 55 basic_istream& operator>>(unsigned long long& n); 56 basic_istream& operator>>(float& f); 57 basic_istream& operator>>(double& f); 58 basic_istream& operator>>(long double& f); 59 basic_istream& operator>>(void*& p); 60 61 // 27.7.1.3 Unformatted input: 62 streamsize gcount() const; 63 int_type get(); 64 basic_istream& get(char_type& c); 65 basic_istream& get(char_type* s, streamsize n); 66 basic_istream& get(char_type* s, streamsize n, char_type delim); 67 basic_istream& get(basic_streambuf<char_type,traits_type>& sb); 68 basic_istream& get(basic_streambuf<char_type,traits_type>& sb, char_type delim); 69 70 basic_istream& getline(char_type* s, streamsize n); 71 basic_istream& getline(char_type* s, streamsize n, char_type delim); 72 73 basic_istream& ignore(streamsize n = 1, int_type delim = traits_type::eof()); 74 int_type peek(); 75 basic_istream& read (char_type* s, streamsize n); 76 streamsize readsome(char_type* s, streamsize n); 77 78 basic_istream& putback(char_type c); 79 basic_istream& unget(); 80 int sync(); 81 82 pos_type tellg(); 83 basic_istream& seekg(pos_type); 84 basic_istream& seekg(off_type, ios_base::seekdir); 85}; 86 87// 27.7.1.2.3 character extraction templates: 88template<class charT, class traits> 89 basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT&); 90 91template<class traits> 92 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char&); 93 94template<class traits> 95 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char&); 96 97template<class charT, class traits> 98 basic_istream<charT,traits>& operator>>(basic_istream<charT,traits>&, charT*); 99 100template<class traits> 101 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, unsigned char*); 102 103template<class traits> 104 basic_istream<char,traits>& operator>>(basic_istream<char,traits>&, signed char*); 105 106template <class charT, class traits> 107 void 108 swap(basic_istream<charT, traits>& x, basic_istream<charT, traits>& y); 109 110typedef basic_istream<char> istream; 111typedef basic_istream<wchar_t> wistream; 112 113template <class charT, class traits = char_traits<charT> > 114class basic_iostream : 115 public basic_istream<charT,traits>, 116 public basic_ostream<charT,traits> 117{ 118public: 119 // types: 120 typedef charT char_type; 121 typedef traits traits_type; 122 typedef typename traits_type::int_type int_type; 123 typedef typename traits_type::pos_type pos_type; 124 typedef typename traits_type::off_type off_type; 125 126 // constructor/destructor 127 explicit basic_iostream(basic_streambuf<char_type, traits_type>* sb); 128 basic_iostream(basic_iostream&& rhs); 129 virtual ~basic_iostream(); 130 131 // assign/swap 132 basic_iostream& operator=(basic_iostream&& rhs); 133 void swap(basic_iostream& rhs); 134}; 135 136template <class charT, class traits> 137 void 138 swap(basic_iostream<charT, traits>& x, basic_iostream<charT, traits>& y); 139 140typedef basic_iostream<char> iostream; 141typedef basic_iostream<wchar_t> wiostream; 142 143template <class charT, class traits> 144 basic_istream<charT,traits>& 145 ws(basic_istream<charT,traits>& is); 146 147template <class charT, class traits, class T> 148 basic_istream<charT, traits>& 149 operator>>(basic_istream<charT, traits>&& is, T& x); 150 151} // std 152 153*/ 154 155#include <__config> 156#include <ostream> 157 158#include <__undef_min_max> 159 160#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 161#pragma GCC system_header 162#endif 163 164_LIBCPP_BEGIN_NAMESPACE_STD 165 166template <class _CharT, class _Traits> 167class _LIBCPP_VISIBLE basic_istream 168 : virtual public basic_ios<_CharT, _Traits> 169{ 170 streamsize __gc_; 171public: 172 // types (inherited from basic_ios (27.5.4)): 173 typedef _CharT char_type; 174 typedef _Traits traits_type; 175 typedef typename traits_type::int_type int_type; 176 typedef typename traits_type::pos_type pos_type; 177 typedef typename traits_type::off_type off_type; 178 179 // 27.7.1.1.1 Constructor/destructor: 180 explicit basic_istream(basic_streambuf<char_type, traits_type>* __sb); 181 virtual ~basic_istream(); 182protected: 183#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 184 _LIBCPP_INLINE_VISIBILITY 185 basic_istream(basic_istream&& __rhs); 186#endif 187 188 // 27.7.1.1.2 Assign/swap: 189#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 190 _LIBCPP_INLINE_VISIBILITY 191 basic_istream& operator=(basic_istream&& __rhs); 192#endif 193 void swap(basic_istream& __rhs); 194public: 195 196 // 27.7.1.1.3 Prefix/suffix: 197 class sentry; 198 199 // 27.7.1.2 Formatted input: 200 basic_istream& operator>>(basic_istream& (*__pf)(basic_istream&)); 201 basic_istream& operator>>(basic_ios<char_type, traits_type>& 202 (*__pf)(basic_ios<char_type, traits_type>&)); 203 basic_istream& operator>>(ios_base& (*__pf)(ios_base&)); 204 basic_istream& operator>>(basic_streambuf<char_type, traits_type>* __sb); 205 basic_istream& operator>>(bool& __n); 206 basic_istream& operator>>(short& __n); 207 basic_istream& operator>>(unsigned short& __n); 208 basic_istream& operator>>(int& __n); 209 basic_istream& operator>>(unsigned int& __n); 210 basic_istream& operator>>(long& __n); 211 basic_istream& operator>>(unsigned long& __n); 212 basic_istream& operator>>(long long& __n); 213 basic_istream& operator>>(unsigned long long& __n); 214 basic_istream& operator>>(float& __f); 215 basic_istream& operator>>(double& __f); 216 basic_istream& operator>>(long double& __f); 217 basic_istream& operator>>(void*& __p); 218 219 // 27.7.1.3 Unformatted input: 220 _LIBCPP_INLINE_VISIBILITY 221 streamsize gcount() const {return __gc_;} 222 int_type get(); 223 basic_istream& get(char_type& __c); 224 basic_istream& get(char_type* __s, streamsize __n); 225 basic_istream& get(char_type* __s, streamsize __n, char_type __dlm); 226 basic_istream& get(basic_streambuf<char_type, traits_type>& __sb); 227 basic_istream& get(basic_streambuf<char_type, traits_type>& __sb, char_type __dlm); 228 229 basic_istream& getline(char_type* __s, streamsize __n); 230 basic_istream& getline(char_type* __s, streamsize __n, char_type __dlm); 231 232 basic_istream& ignore(streamsize __n = 1, int_type __dlm = traits_type::eof()); 233 int_type peek(); 234 basic_istream& read (char_type* __s, streamsize __n); 235 streamsize readsome(char_type* __s, streamsize __n); 236 237 basic_istream& putback(char_type __c); 238 basic_istream& unget(); 239 int sync(); 240 241 pos_type tellg(); 242 basic_istream& seekg(pos_type __pos); 243 basic_istream& seekg(off_type __off, ios_base::seekdir __dir); 244}; 245 246template <class _CharT, class _Traits> 247class _LIBCPP_VISIBLE basic_istream<_CharT, _Traits>::sentry 248{ 249 bool __ok_; 250 251 sentry(const sentry&); // = delete; 252 sentry& operator=(const sentry&); // = delete; 253 254public: 255 explicit sentry(basic_istream<_CharT, _Traits>& __is, bool __noskipws = false); 256// ~sentry() = default; 257 258 _LIBCPP_INLINE_VISIBILITY 259 _LIBCPP_EXPLICIT 260 operator bool() const {return __ok_;} 261}; 262 263template <class _CharT, class _Traits> 264basic_istream<_CharT, _Traits>::sentry::sentry(basic_istream<_CharT, _Traits>& __is, 265 bool __noskipws) 266 : __ok_(false) 267{ 268 if (__is.good()) 269 { 270 if (__is.tie()) 271 __is.tie()->flush(); 272 if (!__noskipws && (__is.flags() & ios_base::skipws)) 273 { 274 typedef istreambuf_iterator<_CharT, _Traits> _Ip; 275 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc()); 276 _Ip __i(__is); 277 _Ip __eof; 278 for (; __i != __eof; ++__i) 279 if (!__ct.is(__ct.space, *__i)) 280 break; 281 if (__i == __eof) 282 __is.setstate(ios_base::failbit | ios_base::eofbit); 283 } 284 __ok_ = __is.good(); 285 } 286 else 287 __is.setstate(ios_base::failbit); 288} 289 290template <class _CharT, class _Traits> 291inline _LIBCPP_INLINE_VISIBILITY 292basic_istream<_CharT, _Traits>::basic_istream(basic_streambuf<char_type, traits_type>* __sb) 293 : __gc_(0) 294{ 295 this->init(__sb); 296} 297 298#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 299 300template <class _CharT, class _Traits> 301inline _LIBCPP_INLINE_VISIBILITY 302basic_istream<_CharT, _Traits>::basic_istream(basic_istream&& __rhs) 303 : __gc_(__rhs.__gc_) 304{ 305 __rhs.__gc_ = 0; 306 this->move(__rhs); 307} 308 309template <class _CharT, class _Traits> 310inline _LIBCPP_INLINE_VISIBILITY 311basic_istream<_CharT, _Traits>& 312basic_istream<_CharT, _Traits>::operator=(basic_istream&& __rhs) 313{ 314 swap(__rhs); 315 return *this; 316} 317 318#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 319 320template <class _CharT, class _Traits> 321basic_istream<_CharT, _Traits>::~basic_istream() 322{ 323} 324 325template <class _CharT, class _Traits> 326inline _LIBCPP_INLINE_VISIBILITY 327void 328basic_istream<_CharT, _Traits>::swap(basic_istream& __rhs) 329{ 330 _VSTD::swap(__gc_, __rhs.__gc_); 331 basic_ios<char_type, traits_type>::swap(__rhs); 332} 333 334template <class _CharT, class _Traits> 335basic_istream<_CharT, _Traits>& 336basic_istream<_CharT, _Traits>::operator>>(unsigned short& __n) 337{ 338#ifndef _LIBCPP_NO_EXCEPTIONS 339 try 340 { 341#endif // _LIBCPP_NO_EXCEPTIONS 342 sentry __s(*this); 343 if (__s) 344 { 345 typedef istreambuf_iterator<char_type, traits_type> _Ip; 346 typedef num_get<char_type, _Ip> _Fp; 347 ios_base::iostate __err = ios_base::goodbit; 348 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 349 this->setstate(__err); 350 } 351#ifndef _LIBCPP_NO_EXCEPTIONS 352 } 353 catch (...) 354 { 355 this->__set_badbit_and_consider_rethrow(); 356 } 357#endif // _LIBCPP_NO_EXCEPTIONS 358 return *this; 359} 360 361template <class _CharT, class _Traits> 362basic_istream<_CharT, _Traits>& 363basic_istream<_CharT, _Traits>::operator>>(unsigned int& __n) 364{ 365#ifndef _LIBCPP_NO_EXCEPTIONS 366 try 367 { 368#endif // _LIBCPP_NO_EXCEPTIONS 369 sentry __s(*this); 370 if (__s) 371 { 372 typedef istreambuf_iterator<char_type, traits_type> _Ip; 373 typedef num_get<char_type, _Ip> _Fp; 374 ios_base::iostate __err = ios_base::goodbit; 375 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 376 this->setstate(__err); 377 } 378#ifndef _LIBCPP_NO_EXCEPTIONS 379 } 380 catch (...) 381 { 382 this->__set_badbit_and_consider_rethrow(); 383 } 384#endif // _LIBCPP_NO_EXCEPTIONS 385 return *this; 386} 387 388template <class _CharT, class _Traits> 389basic_istream<_CharT, _Traits>& 390basic_istream<_CharT, _Traits>::operator>>(long& __n) 391{ 392#ifndef _LIBCPP_NO_EXCEPTIONS 393 try 394 { 395#endif // _LIBCPP_NO_EXCEPTIONS 396 sentry __s(*this); 397 if (__s) 398 { 399 typedef istreambuf_iterator<char_type, traits_type> _Ip; 400 typedef num_get<char_type, _Ip> _Fp; 401 ios_base::iostate __err = ios_base::goodbit; 402 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 403 this->setstate(__err); 404 } 405#ifndef _LIBCPP_NO_EXCEPTIONS 406 } 407 catch (...) 408 { 409 this->__set_badbit_and_consider_rethrow(); 410 } 411#endif // _LIBCPP_NO_EXCEPTIONS 412 return *this; 413} 414 415template <class _CharT, class _Traits> 416basic_istream<_CharT, _Traits>& 417basic_istream<_CharT, _Traits>::operator>>(unsigned long& __n) 418{ 419#ifndef _LIBCPP_NO_EXCEPTIONS 420 try 421 { 422#endif // _LIBCPP_NO_EXCEPTIONS 423 sentry __s(*this); 424 if (__s) 425 { 426 typedef istreambuf_iterator<char_type, traits_type> _Ip; 427 typedef num_get<char_type, _Ip> _Fp; 428 ios_base::iostate __err = ios_base::goodbit; 429 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 430 this->setstate(__err); 431 } 432#ifndef _LIBCPP_NO_EXCEPTIONS 433 } 434 catch (...) 435 { 436 this->__set_badbit_and_consider_rethrow(); 437 } 438#endif // _LIBCPP_NO_EXCEPTIONS 439 return *this; 440} 441 442template <class _CharT, class _Traits> 443basic_istream<_CharT, _Traits>& 444basic_istream<_CharT, _Traits>::operator>>(long long& __n) 445{ 446#ifndef _LIBCPP_NO_EXCEPTIONS 447 try 448 { 449#endif // _LIBCPP_NO_EXCEPTIONS 450 sentry __s(*this); 451 if (__s) 452 { 453 typedef istreambuf_iterator<char_type, traits_type> _Ip; 454 typedef num_get<char_type, _Ip> _Fp; 455 ios_base::iostate __err = ios_base::goodbit; 456 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 457 this->setstate(__err); 458 } 459#ifndef _LIBCPP_NO_EXCEPTIONS 460 } 461 catch (...) 462 { 463 this->__set_badbit_and_consider_rethrow(); 464 } 465#endif // _LIBCPP_NO_EXCEPTIONS 466 return *this; 467} 468 469template <class _CharT, class _Traits> 470basic_istream<_CharT, _Traits>& 471basic_istream<_CharT, _Traits>::operator>>(unsigned long long& __n) 472{ 473#ifndef _LIBCPP_NO_EXCEPTIONS 474 try 475 { 476#endif // _LIBCPP_NO_EXCEPTIONS 477 sentry __s(*this); 478 if (__s) 479 { 480 typedef istreambuf_iterator<char_type, traits_type> _Ip; 481 typedef num_get<char_type, _Ip> _Fp; 482 ios_base::iostate __err = ios_base::goodbit; 483 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 484 this->setstate(__err); 485 } 486#ifndef _LIBCPP_NO_EXCEPTIONS 487 } 488 catch (...) 489 { 490 this->__set_badbit_and_consider_rethrow(); 491 } 492#endif // _LIBCPP_NO_EXCEPTIONS 493 return *this; 494} 495 496template <class _CharT, class _Traits> 497basic_istream<_CharT, _Traits>& 498basic_istream<_CharT, _Traits>::operator>>(float& __n) 499{ 500#ifndef _LIBCPP_NO_EXCEPTIONS 501 try 502 { 503#endif // _LIBCPP_NO_EXCEPTIONS 504 sentry __s(*this); 505 if (__s) 506 { 507 typedef istreambuf_iterator<char_type, traits_type> _Ip; 508 typedef num_get<char_type, _Ip> _Fp; 509 ios_base::iostate __err = ios_base::goodbit; 510 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 511 this->setstate(__err); 512 } 513#ifndef _LIBCPP_NO_EXCEPTIONS 514 } 515 catch (...) 516 { 517 this->__set_badbit_and_consider_rethrow(); 518 } 519#endif // _LIBCPP_NO_EXCEPTIONS 520 return *this; 521} 522 523template <class _CharT, class _Traits> 524basic_istream<_CharT, _Traits>& 525basic_istream<_CharT, _Traits>::operator>>(double& __n) 526{ 527#ifndef _LIBCPP_NO_EXCEPTIONS 528 try 529 { 530#endif // _LIBCPP_NO_EXCEPTIONS 531 sentry __s(*this); 532 if (__s) 533 { 534 typedef istreambuf_iterator<char_type, traits_type> _Ip; 535 typedef num_get<char_type, _Ip> _Fp; 536 ios_base::iostate __err = ios_base::goodbit; 537 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 538 this->setstate(__err); 539 } 540#ifndef _LIBCPP_NO_EXCEPTIONS 541 } 542 catch (...) 543 { 544 this->__set_badbit_and_consider_rethrow(); 545 } 546#endif // _LIBCPP_NO_EXCEPTIONS 547 return *this; 548} 549 550template <class _CharT, class _Traits> 551basic_istream<_CharT, _Traits>& 552basic_istream<_CharT, _Traits>::operator>>(long double& __n) 553{ 554#ifndef _LIBCPP_NO_EXCEPTIONS 555 try 556 { 557#endif // _LIBCPP_NO_EXCEPTIONS 558 sentry __s(*this); 559 if (__s) 560 { 561 typedef istreambuf_iterator<char_type, traits_type> _Ip; 562 typedef num_get<char_type, _Ip> _Fp; 563 ios_base::iostate __err = ios_base::goodbit; 564 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 565 this->setstate(__err); 566 } 567#ifndef _LIBCPP_NO_EXCEPTIONS 568 } 569 catch (...) 570 { 571 this->__set_badbit_and_consider_rethrow(); 572 } 573#endif // _LIBCPP_NO_EXCEPTIONS 574 return *this; 575} 576 577template <class _CharT, class _Traits> 578basic_istream<_CharT, _Traits>& 579basic_istream<_CharT, _Traits>::operator>>(bool& __n) 580{ 581#ifndef _LIBCPP_NO_EXCEPTIONS 582 try 583 { 584#endif // _LIBCPP_NO_EXCEPTIONS 585 sentry __s(*this); 586 if (__s) 587 { 588 typedef istreambuf_iterator<char_type, traits_type> _Ip; 589 typedef num_get<char_type, _Ip> _Fp; 590 ios_base::iostate __err = ios_base::goodbit; 591 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 592 this->setstate(__err); 593 } 594#ifndef _LIBCPP_NO_EXCEPTIONS 595 } 596 catch (...) 597 { 598 this->__set_badbit_and_consider_rethrow(); 599 } 600#endif // _LIBCPP_NO_EXCEPTIONS 601 return *this; 602} 603 604template <class _CharT, class _Traits> 605basic_istream<_CharT, _Traits>& 606basic_istream<_CharT, _Traits>::operator>>(void*& __n) 607{ 608#ifndef _LIBCPP_NO_EXCEPTIONS 609 try 610 { 611#endif // _LIBCPP_NO_EXCEPTIONS 612 sentry __s(*this); 613 if (__s) 614 { 615 typedef istreambuf_iterator<char_type, traits_type> _Ip; 616 typedef num_get<char_type, _Ip> _Fp; 617 ios_base::iostate __err = ios_base::goodbit; 618 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __n); 619 this->setstate(__err); 620 } 621#ifndef _LIBCPP_NO_EXCEPTIONS 622 } 623 catch (...) 624 { 625 this->__set_badbit_and_consider_rethrow(); 626 } 627#endif // _LIBCPP_NO_EXCEPTIONS 628 return *this; 629} 630 631template <class _CharT, class _Traits> 632basic_istream<_CharT, _Traits>& 633basic_istream<_CharT, _Traits>::operator>>(short& __n) 634{ 635#ifndef _LIBCPP_NO_EXCEPTIONS 636 try 637 { 638#endif // _LIBCPP_NO_EXCEPTIONS 639 sentry __s(*this); 640 if (__s) 641 { 642 typedef istreambuf_iterator<char_type, traits_type> _Ip; 643 typedef num_get<char_type, _Ip> _Fp; 644 ios_base::iostate __err = ios_base::goodbit; 645 long __temp; 646 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __temp); 647 if (__temp < numeric_limits<short>::min()) 648 { 649 __err |= ios_base::failbit; 650 __n = numeric_limits<short>::min(); 651 } 652 else if (__temp > numeric_limits<short>::max()) 653 { 654 __err |= ios_base::failbit; 655 __n = numeric_limits<short>::max(); 656 } 657 else 658 __n = static_cast<short>(__temp); 659 this->setstate(__err); 660 } 661#ifndef _LIBCPP_NO_EXCEPTIONS 662 } 663 catch (...) 664 { 665 this->__set_badbit_and_consider_rethrow(); 666 } 667#endif // _LIBCPP_NO_EXCEPTIONS 668 return *this; 669} 670 671template <class _CharT, class _Traits> 672basic_istream<_CharT, _Traits>& 673basic_istream<_CharT, _Traits>::operator>>(int& __n) 674{ 675#ifndef _LIBCPP_NO_EXCEPTIONS 676 try 677 { 678#endif // _LIBCPP_NO_EXCEPTIONS 679 sentry __s(*this); 680 if (__s) 681 { 682 typedef istreambuf_iterator<char_type, traits_type> _Ip; 683 typedef num_get<char_type, _Ip> _Fp; 684 ios_base::iostate __err = ios_base::goodbit; 685 long __temp; 686 use_facet<_Fp>(this->getloc()).get(_Ip(*this), _Ip(), *this, __err, __temp); 687 if (__temp < numeric_limits<int>::min()) 688 { 689 __err |= ios_base::failbit; 690 __n = numeric_limits<int>::min(); 691 } 692 else if (__temp > numeric_limits<int>::max()) 693 { 694 __err |= ios_base::failbit; 695 __n = numeric_limits<int>::max(); 696 } 697 else 698 __n = static_cast<int>(__temp); 699 this->setstate(__err); 700 } 701#ifndef _LIBCPP_NO_EXCEPTIONS 702 } 703 catch (...) 704 { 705 this->__set_badbit_and_consider_rethrow(); 706 } 707#endif // _LIBCPP_NO_EXCEPTIONS 708 return *this; 709} 710 711template <class _CharT, class _Traits> 712inline _LIBCPP_INLINE_VISIBILITY 713basic_istream<_CharT, _Traits>& 714basic_istream<_CharT, _Traits>::operator>>(basic_istream& (*__pf)(basic_istream&)) 715{ 716 return __pf(*this); 717} 718 719template <class _CharT, class _Traits> 720inline _LIBCPP_INLINE_VISIBILITY 721basic_istream<_CharT, _Traits>& 722basic_istream<_CharT, _Traits>::operator>>(basic_ios<char_type, traits_type>& 723 (*__pf)(basic_ios<char_type, traits_type>&)) 724{ 725 __pf(*this); 726 return *this; 727} 728 729template <class _CharT, class _Traits> 730inline _LIBCPP_INLINE_VISIBILITY 731basic_istream<_CharT, _Traits>& 732basic_istream<_CharT, _Traits>::operator>>(ios_base& (*__pf)(ios_base&)) 733{ 734 __pf(*this); 735 return *this; 736} 737 738template<class _CharT, class _Traits> 739basic_istream<_CharT, _Traits>& 740operator>>(basic_istream<_CharT, _Traits>& __is, _CharT* __s) 741{ 742#ifndef _LIBCPP_NO_EXCEPTIONS 743 try 744 { 745#endif // _LIBCPP_NO_EXCEPTIONS 746 typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 747 if (__sen) 748 { 749 streamsize __n = __is.width(); 750 if (__n <= 0) 751 __n = numeric_limits<streamsize>::max() / sizeof(_CharT) - 1; 752 streamsize __c = 0; 753 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc()); 754 ios_base::iostate __err = ios_base::goodbit; 755 while (__c < __n-1) 756 { 757 typename _Traits::int_type __i = __is.rdbuf()->sgetc(); 758 if (_Traits::eq_int_type(__i, _Traits::eof())) 759 { 760 __err |= ios_base::eofbit; 761 break; 762 } 763 _CharT __ch = _Traits::to_char_type(__i); 764 if (__ct.is(__ct.space, __ch)) 765 break; 766 *__s++ = __ch; 767 ++__c; 768 __is.rdbuf()->sbumpc(); 769 } 770 *__s = _CharT(); 771 __is.width(0); 772 if (__c == 0) 773 __err |= ios_base::failbit; 774 __is.setstate(__err); 775 } 776#ifndef _LIBCPP_NO_EXCEPTIONS 777 } 778 catch (...) 779 { 780 __is.__set_badbit_and_consider_rethrow(); 781 } 782#endif // _LIBCPP_NO_EXCEPTIONS 783 return __is; 784} 785 786template<class _Traits> 787inline _LIBCPP_INLINE_VISIBILITY 788basic_istream<char, _Traits>& 789operator>>(basic_istream<char, _Traits>& __is, unsigned char* __s) 790{ 791 return __is >> (char*)__s; 792} 793 794template<class _Traits> 795inline _LIBCPP_INLINE_VISIBILITY 796basic_istream<char, _Traits>& 797operator>>(basic_istream<char, _Traits>& __is, signed char* __s) 798{ 799 return __is >> (char*)__s; 800} 801 802template<class _CharT, class _Traits> 803basic_istream<_CharT, _Traits>& 804operator>>(basic_istream<_CharT, _Traits>& __is, _CharT& __c) 805{ 806#ifndef _LIBCPP_NO_EXCEPTIONS 807 try 808 { 809#endif // _LIBCPP_NO_EXCEPTIONS 810 typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 811 if (__sen) 812 { 813 typename _Traits::int_type __i = __is.rdbuf()->sbumpc(); 814 if (_Traits::eq_int_type(__i, _Traits::eof())) 815 __is.setstate(ios_base::eofbit | ios_base::failbit); 816 else 817 __c = _Traits::to_char_type(__i); 818 } 819#ifndef _LIBCPP_NO_EXCEPTIONS 820 } 821 catch (...) 822 { 823 __is.__set_badbit_and_consider_rethrow(); 824 } 825#endif // _LIBCPP_NO_EXCEPTIONS 826 return __is; 827} 828 829template<class _Traits> 830inline _LIBCPP_INLINE_VISIBILITY 831basic_istream<char, _Traits>& 832operator>>(basic_istream<char, _Traits>& __is, unsigned char& __c) 833{ 834 return __is >> (char&)__c; 835} 836 837template<class _Traits> 838inline _LIBCPP_INLINE_VISIBILITY 839basic_istream<char, _Traits>& 840operator>>(basic_istream<char, _Traits>& __is, signed char& __c) 841{ 842 return __is >> (char&)__c; 843} 844 845template<class _CharT, class _Traits> 846basic_istream<_CharT, _Traits>& 847basic_istream<_CharT, _Traits>::operator>>(basic_streambuf<char_type, traits_type>* __sb) 848{ 849 __gc_ = 0; 850#ifndef _LIBCPP_NO_EXCEPTIONS 851 try 852 { 853#endif // _LIBCPP_NO_EXCEPTIONS 854 sentry __s(*this, true); 855 if (__s) 856 { 857 if (__sb) 858 { 859#ifndef _LIBCPP_NO_EXCEPTIONS 860 try 861 { 862#endif // _LIBCPP_NO_EXCEPTIONS 863 ios_base::iostate __err = ios_base::goodbit; 864 while (true) 865 { 866 typename traits_type::int_type __i = this->rdbuf()->sgetc(); 867 if (traits_type::eq_int_type(__i, _Traits::eof())) 868 { 869 __err |= ios_base::eofbit; 870 break; 871 } 872 if (traits_type::eq_int_type( 873 __sb->sputc(traits_type::to_char_type(__i)), 874 traits_type::eof())) 875 break; 876 ++__gc_; 877 this->rdbuf()->sbumpc(); 878 } 879 if (__gc_ == 0) 880 __err |= ios_base::failbit; 881 this->setstate(__err); 882#ifndef _LIBCPP_NO_EXCEPTIONS 883 } 884 catch (...) 885 { 886 if (__gc_ == 0) 887 this->__set_failbit_and_consider_rethrow(); 888 } 889#endif // _LIBCPP_NO_EXCEPTIONS 890 } 891 else 892 this->setstate(ios_base::failbit); 893 } 894#ifndef _LIBCPP_NO_EXCEPTIONS 895 } 896 catch (...) 897 { 898 this->__set_badbit_and_consider_rethrow(); 899 } 900#endif // _LIBCPP_NO_EXCEPTIONS 901 return *this; 902} 903 904template<class _CharT, class _Traits> 905typename basic_istream<_CharT, _Traits>::int_type 906basic_istream<_CharT, _Traits>::get() 907{ 908 __gc_ = 0; 909 int_type __r = traits_type::eof(); 910#ifndef _LIBCPP_NO_EXCEPTIONS 911 try 912 { 913#endif // _LIBCPP_NO_EXCEPTIONS 914 sentry __s(*this, true); 915 if (__s) 916 { 917 __r = this->rdbuf()->sbumpc(); 918 if (traits_type::eq_int_type(__r, traits_type::eof())) 919 this->setstate(ios_base::failbit | ios_base::eofbit); 920 else 921 __gc_ = 1; 922 } 923#ifndef _LIBCPP_NO_EXCEPTIONS 924 } 925 catch (...) 926 { 927 this->__set_badbit_and_consider_rethrow(); 928 } 929#endif // _LIBCPP_NO_EXCEPTIONS 930 return __r; 931} 932 933template<class _CharT, class _Traits> 934inline _LIBCPP_INLINE_VISIBILITY 935basic_istream<_CharT, _Traits>& 936basic_istream<_CharT, _Traits>::get(char_type& __c) 937{ 938 int_type __ch = get(); 939 if (__ch != traits_type::eof()) 940 __c = traits_type::to_char_type(__ch); 941 return *this; 942} 943 944template<class _CharT, class _Traits> 945basic_istream<_CharT, _Traits>& 946basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n, char_type __dlm) 947{ 948 __gc_ = 0; 949#ifndef _LIBCPP_NO_EXCEPTIONS 950 try 951 { 952#endif // _LIBCPP_NO_EXCEPTIONS 953 sentry __sen(*this, true); 954 if (__sen) 955 { 956 if (__n > 0) 957 { 958 ios_base::iostate __err = ios_base::goodbit; 959 while (__gc_ < __n-1) 960 { 961 int_type __i = this->rdbuf()->sgetc(); 962 if (traits_type::eq_int_type(__i, traits_type::eof())) 963 { 964 __err |= ios_base::eofbit; 965 break; 966 } 967 char_type __ch = traits_type::to_char_type(__i); 968 if (traits_type::eq(__ch, __dlm)) 969 break; 970 *__s++ = __ch; 971 ++__gc_; 972 this->rdbuf()->sbumpc(); 973 } 974 *__s = char_type(); 975 if (__gc_ == 0) 976 __err |= ios_base::failbit; 977 this->setstate(__err); 978 } 979 else 980 this->setstate(ios_base::failbit); 981 } 982#ifndef _LIBCPP_NO_EXCEPTIONS 983 } 984 catch (...) 985 { 986 this->__set_badbit_and_consider_rethrow(); 987 } 988#endif // _LIBCPP_NO_EXCEPTIONS 989 return *this; 990} 991 992template<class _CharT, class _Traits> 993inline _LIBCPP_INLINE_VISIBILITY 994basic_istream<_CharT, _Traits>& 995basic_istream<_CharT, _Traits>::get(char_type* __s, streamsize __n) 996{ 997 return get(__s, __n, this->widen('\n')); 998} 999 1000template<class _CharT, class _Traits> 1001basic_istream<_CharT, _Traits>& 1002basic_istream<_CharT, _Traits>::get(basic_streambuf<char_type, traits_type>& __sb, 1003 char_type __dlm) 1004{ 1005 __gc_ = 0; 1006#ifndef _LIBCPP_NO_EXCEPTIONS 1007 try 1008 { 1009#endif // _LIBCPP_NO_EXCEPTIONS 1010 sentry __sen(*this, true); 1011 if (__sen) 1012 { 1013 ios_base::iostate __err = ios_base::goodbit; 1014#ifndef _LIBCPP_NO_EXCEPTIONS 1015 try 1016 { 1017#endif // _LIBCPP_NO_EXCEPTIONS 1018 while (true) 1019 { 1020 typename traits_type::int_type __i = this->rdbuf()->sgetc(); 1021 if (traits_type::eq_int_type(__i, traits_type::eof())) 1022 { 1023 __err |= ios_base::eofbit; 1024 break; 1025 } 1026 char_type __ch = traits_type::to_char_type(__i); 1027 if (traits_type::eq(__ch, __dlm)) 1028 break; 1029 if (traits_type::eq_int_type(__sb.sputc(__ch), traits_type::eof())) 1030 break; 1031 ++__gc_; 1032 this->rdbuf()->sbumpc(); 1033 } 1034#ifndef _LIBCPP_NO_EXCEPTIONS 1035 } 1036 catch (...) 1037 { 1038 } 1039#endif // _LIBCPP_NO_EXCEPTIONS 1040 if (__gc_ == 0) 1041 __err |= ios_base::failbit; 1042 this->setstate(__err); 1043 } 1044#ifndef _LIBCPP_NO_EXCEPTIONS 1045 } 1046 catch (...) 1047 { 1048 this->__set_badbit_and_consider_rethrow(); 1049 } 1050#endif // _LIBCPP_NO_EXCEPTIONS 1051 return *this; 1052} 1053 1054template<class _CharT, class _Traits> 1055inline _LIBCPP_INLINE_VISIBILITY 1056basic_istream<_CharT, _Traits>& 1057basic_istream<_CharT, _Traits>::get(basic_streambuf<char_type, traits_type>& __sb) 1058{ 1059 return get(__sb, this->widen('\n')); 1060} 1061 1062template<class _CharT, class _Traits> 1063basic_istream<_CharT, _Traits>& 1064basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n, char_type __dlm) 1065{ 1066 __gc_ = 0; 1067#ifndef _LIBCPP_NO_EXCEPTIONS 1068 try 1069 { 1070#endif // _LIBCPP_NO_EXCEPTIONS 1071 sentry __sen(*this, true); 1072 if (__sen) 1073 { 1074 ios_base::iostate __err = ios_base::goodbit; 1075 while (true) 1076 { 1077 typename traits_type::int_type __i = this->rdbuf()->sgetc(); 1078 if (traits_type::eq_int_type(__i, traits_type::eof())) 1079 { 1080 __err |= ios_base::eofbit; 1081 break; 1082 } 1083 char_type __ch = traits_type::to_char_type(__i); 1084 if (traits_type::eq(__ch, __dlm)) 1085 { 1086 this->rdbuf()->sbumpc(); 1087 ++__gc_; 1088 break; 1089 } 1090 if (__gc_ >= __n-1) 1091 { 1092 __err |= ios_base::failbit; 1093 break; 1094 } 1095 *__s++ = __ch; 1096 this->rdbuf()->sbumpc(); 1097 ++__gc_; 1098 } 1099 if (__n > 0) 1100 *__s = char_type(); 1101 if (__gc_ == 0) 1102 __err |= ios_base::failbit; 1103 this->setstate(__err); 1104 } 1105#ifndef _LIBCPP_NO_EXCEPTIONS 1106 } 1107 catch (...) 1108 { 1109 this->__set_badbit_and_consider_rethrow(); 1110 } 1111#endif // _LIBCPP_NO_EXCEPTIONS 1112 return *this; 1113} 1114 1115template<class _CharT, class _Traits> 1116inline _LIBCPP_INLINE_VISIBILITY 1117basic_istream<_CharT, _Traits>& 1118basic_istream<_CharT, _Traits>::getline(char_type* __s, streamsize __n) 1119{ 1120 return getline(__s, __n, this->widen('\n')); 1121} 1122 1123template<class _CharT, class _Traits> 1124basic_istream<_CharT, _Traits>& 1125basic_istream<_CharT, _Traits>::ignore(streamsize __n, int_type __dlm) 1126{ 1127 __gc_ = 0; 1128#ifndef _LIBCPP_NO_EXCEPTIONS 1129 try 1130 { 1131#endif // _LIBCPP_NO_EXCEPTIONS 1132 sentry __sen(*this, true); 1133 if (__sen) 1134 { 1135 ios_base::iostate __err = ios_base::goodbit; 1136 if (__n == numeric_limits<streamsize>::max()) 1137 { 1138 while (true) 1139 { 1140 typename traits_type::int_type __i = this->rdbuf()->sbumpc(); 1141 if (traits_type::eq_int_type(__i, traits_type::eof())) 1142 { 1143 __err |= ios_base::eofbit; 1144 break; 1145 } 1146 ++__gc_; 1147 char_type __ch = traits_type::to_char_type(__i); 1148 if (traits_type::eq(__ch, static_cast<char_type>(__dlm))) 1149 break; 1150 } 1151 } 1152 else 1153 { 1154 while (__gc_ < __n) 1155 { 1156 typename traits_type::int_type __i = this->rdbuf()->sbumpc(); 1157 if (traits_type::eq_int_type(__i, traits_type::eof())) 1158 { 1159 __err |= ios_base::eofbit; 1160 break; 1161 } 1162 ++__gc_; 1163 char_type __ch = traits_type::to_char_type(__i); 1164 if (traits_type::eq(__ch, static_cast<char_type>(__dlm))) 1165 break; 1166 } 1167 } 1168 this->setstate(__err); 1169 } 1170#ifndef _LIBCPP_NO_EXCEPTIONS 1171 } 1172 catch (...) 1173 { 1174 this->__set_badbit_and_consider_rethrow(); 1175 } 1176#endif // _LIBCPP_NO_EXCEPTIONS 1177 return *this; 1178} 1179 1180template<class _CharT, class _Traits> 1181typename basic_istream<_CharT, _Traits>::int_type 1182basic_istream<_CharT, _Traits>::peek() 1183{ 1184 __gc_ = 0; 1185 int_type __r = traits_type::eof(); 1186#ifndef _LIBCPP_NO_EXCEPTIONS 1187 try 1188 { 1189#endif // _LIBCPP_NO_EXCEPTIONS 1190 sentry __sen(*this, true); 1191 if (__sen) 1192 __r = this->rdbuf()->sgetc(); 1193#ifndef _LIBCPP_NO_EXCEPTIONS 1194 } 1195 catch (...) 1196 { 1197 this->__set_badbit_and_consider_rethrow(); 1198 } 1199#endif // _LIBCPP_NO_EXCEPTIONS 1200 return __r; 1201} 1202 1203template<class _CharT, class _Traits> 1204basic_istream<_CharT, _Traits>& 1205basic_istream<_CharT, _Traits>::read(char_type* __s, streamsize __n) 1206{ 1207 __gc_ = 0; 1208#ifndef _LIBCPP_NO_EXCEPTIONS 1209 try 1210 { 1211#endif // _LIBCPP_NO_EXCEPTIONS 1212 sentry __sen(*this, true); 1213 if (__sen) 1214 { 1215 for (; __gc_ < __n; ++__gc_) 1216 { 1217 typename traits_type::int_type __i = this->rdbuf()->sbumpc(); 1218 if (traits_type::eq_int_type(__i, traits_type::eof())) 1219 { 1220 this->setstate(ios_base::failbit | ios_base::eofbit); 1221 break; 1222 } 1223 *__s++ = traits_type::to_char_type(__i); 1224 } 1225 } 1226 else 1227 this->setstate(ios_base::failbit); 1228#ifndef _LIBCPP_NO_EXCEPTIONS 1229 } 1230 catch (...) 1231 { 1232 this->__set_badbit_and_consider_rethrow(); 1233 } 1234#endif // _LIBCPP_NO_EXCEPTIONS 1235 return *this; 1236} 1237 1238template<class _CharT, class _Traits> 1239streamsize 1240basic_istream<_CharT, _Traits>::readsome(char_type* __s, streamsize __n) 1241{ 1242 streamsize __c = this->rdbuf()->in_avail(); 1243 switch (__c) 1244 { 1245 case -1: 1246 this->setstate(ios_base::eofbit); 1247 break; 1248 case 0: 1249 break; 1250 default: 1251 read(__s, _VSTD::min(__c, __n)); 1252 break; 1253 } 1254 return __gc_; 1255} 1256 1257template<class _CharT, class _Traits> 1258basic_istream<_CharT, _Traits>& 1259basic_istream<_CharT, _Traits>::putback(char_type __c) 1260{ 1261 __gc_ = 0; 1262#ifndef _LIBCPP_NO_EXCEPTIONS 1263 try 1264 { 1265#endif // _LIBCPP_NO_EXCEPTIONS 1266 sentry __sen(*this, true); 1267 if (__sen) 1268 { 1269 if (this->rdbuf() == 0 || this->rdbuf()->sputbackc(__c) == traits_type::eof()) 1270 this->setstate(ios_base::badbit); 1271 } 1272 else 1273 this->setstate(ios_base::failbit); 1274#ifndef _LIBCPP_NO_EXCEPTIONS 1275 } 1276 catch (...) 1277 { 1278 this->__set_badbit_and_consider_rethrow(); 1279 } 1280#endif // _LIBCPP_NO_EXCEPTIONS 1281 return *this; 1282} 1283 1284template<class _CharT, class _Traits> 1285basic_istream<_CharT, _Traits>& 1286basic_istream<_CharT, _Traits>::unget() 1287{ 1288 __gc_ = 0; 1289#ifndef _LIBCPP_NO_EXCEPTIONS 1290 try 1291 { 1292#endif // _LIBCPP_NO_EXCEPTIONS 1293 sentry __sen(*this, true); 1294 if (__sen) 1295 { 1296 if (this->rdbuf() == 0 || this->rdbuf()->sungetc() == traits_type::eof()) 1297 this->setstate(ios_base::badbit); 1298 } 1299 else 1300 this->setstate(ios_base::failbit); 1301#ifndef _LIBCPP_NO_EXCEPTIONS 1302 } 1303 catch (...) 1304 { 1305 this->__set_badbit_and_consider_rethrow(); 1306 } 1307#endif // _LIBCPP_NO_EXCEPTIONS 1308 return *this; 1309} 1310 1311template<class _CharT, class _Traits> 1312int 1313basic_istream<_CharT, _Traits>::sync() 1314{ 1315 int __r = 0; 1316#ifndef _LIBCPP_NO_EXCEPTIONS 1317 try 1318 { 1319#endif // _LIBCPP_NO_EXCEPTIONS 1320 sentry __sen(*this, true); 1321 if (__sen) 1322 { 1323 if (this->rdbuf() == 0) 1324 return -1; 1325 if (this->rdbuf()->pubsync() == -1) 1326 { 1327 this->setstate(ios_base::badbit); 1328 return -1; 1329 } 1330 } 1331#ifndef _LIBCPP_NO_EXCEPTIONS 1332 } 1333 catch (...) 1334 { 1335 this->__set_badbit_and_consider_rethrow(); 1336 } 1337#endif // _LIBCPP_NO_EXCEPTIONS 1338 return __r; 1339} 1340 1341template<class _CharT, class _Traits> 1342typename basic_istream<_CharT, _Traits>::pos_type 1343basic_istream<_CharT, _Traits>::tellg() 1344{ 1345 pos_type __r(-1); 1346#ifndef _LIBCPP_NO_EXCEPTIONS 1347 try 1348 { 1349#endif // _LIBCPP_NO_EXCEPTIONS 1350 sentry __sen(*this, true); 1351 if (__sen) 1352 __r = this->rdbuf()->pubseekoff(0, ios_base::cur, ios_base::in); 1353#ifndef _LIBCPP_NO_EXCEPTIONS 1354 } 1355 catch (...) 1356 { 1357 this->__set_badbit_and_consider_rethrow(); 1358 } 1359#endif // _LIBCPP_NO_EXCEPTIONS 1360 return __r; 1361} 1362 1363template<class _CharT, class _Traits> 1364basic_istream<_CharT, _Traits>& 1365basic_istream<_CharT, _Traits>::seekg(pos_type __pos) 1366{ 1367#ifndef _LIBCPP_NO_EXCEPTIONS 1368 try 1369 { 1370#endif // _LIBCPP_NO_EXCEPTIONS 1371 sentry __sen(*this, true); 1372 if (__sen) 1373 if (this->rdbuf()->pubseekpos(__pos, ios_base::in) == pos_type(-1)) 1374 this->setstate(ios_base::failbit); 1375#ifndef _LIBCPP_NO_EXCEPTIONS 1376 } 1377 catch (...) 1378 { 1379 this->__set_badbit_and_consider_rethrow(); 1380 } 1381#endif // _LIBCPP_NO_EXCEPTIONS 1382 return *this; 1383} 1384 1385template<class _CharT, class _Traits> 1386basic_istream<_CharT, _Traits>& 1387basic_istream<_CharT, _Traits>::seekg(off_type __off, ios_base::seekdir __dir) 1388{ 1389#ifndef _LIBCPP_NO_EXCEPTIONS 1390 try 1391 { 1392#endif // _LIBCPP_NO_EXCEPTIONS 1393 sentry __sen(*this, true); 1394 if (__sen) 1395 this->rdbuf()->pubseekoff(__off, __dir, ios_base::in); 1396#ifndef _LIBCPP_NO_EXCEPTIONS 1397 } 1398 catch (...) 1399 { 1400 this->__set_badbit_and_consider_rethrow(); 1401 } 1402#endif // _LIBCPP_NO_EXCEPTIONS 1403 return *this; 1404} 1405 1406template <class _CharT, class _Traits> 1407basic_istream<_CharT, _Traits>& 1408ws(basic_istream<_CharT, _Traits>& __is) 1409{ 1410#ifndef _LIBCPP_NO_EXCEPTIONS 1411 try 1412 { 1413#endif // _LIBCPP_NO_EXCEPTIONS 1414 typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true); 1415 if (__sen) 1416 { 1417 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc()); 1418 while (true) 1419 { 1420 typename _Traits::int_type __i = __is.rdbuf()->sgetc(); 1421 if (_Traits::eq_int_type(__i, _Traits::eof())) 1422 { 1423 __is.setstate(ios_base::eofbit); 1424 break; 1425 } 1426 if (!__ct.is(__ct.space, _Traits::to_char_type(__i))) 1427 break; 1428 __is.rdbuf()->sbumpc(); 1429 } 1430 } 1431#ifndef _LIBCPP_NO_EXCEPTIONS 1432 } 1433 catch (...) 1434 { 1435 __is.__set_badbit_and_consider_rethrow(); 1436 } 1437#endif // _LIBCPP_NO_EXCEPTIONS 1438 return __is; 1439} 1440 1441#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1442 1443template <class _CharT, class _Traits, class _Tp> 1444inline _LIBCPP_INLINE_VISIBILITY 1445basic_istream<_CharT, _Traits>& 1446operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x) 1447{ 1448 __is >> __x; 1449 return __is; 1450} 1451 1452#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1453 1454template <class _CharT, class _Traits> 1455class _LIBCPP_VISIBLE basic_iostream 1456 : public basic_istream<_CharT, _Traits>, 1457 public basic_ostream<_CharT, _Traits> 1458{ 1459public: 1460 // types: 1461 typedef _CharT char_type; 1462 typedef _Traits traits_type; 1463 typedef typename traits_type::int_type int_type; 1464 typedef typename traits_type::pos_type pos_type; 1465 typedef typename traits_type::off_type off_type; 1466 1467 // constructor/destructor 1468 explicit basic_iostream(basic_streambuf<char_type, traits_type>* __sb); 1469 virtual ~basic_iostream(); 1470protected: 1471#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1472 _LIBCPP_INLINE_VISIBILITY 1473 basic_iostream(basic_iostream&& __rhs); 1474#endif 1475 1476 // assign/swap 1477#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1478 _LIBCPP_INLINE_VISIBILITY 1479 basic_iostream& operator=(basic_iostream&& __rhs); 1480#endif 1481 void swap(basic_iostream& __rhs); 1482public: 1483}; 1484 1485template <class _CharT, class _Traits> 1486inline _LIBCPP_INLINE_VISIBILITY 1487basic_iostream<_CharT, _Traits>::basic_iostream(basic_streambuf<char_type, traits_type>* __sb) 1488 : basic_istream<_CharT, _Traits>(__sb) 1489{ 1490} 1491 1492#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1493 1494template <class _CharT, class _Traits> 1495inline _LIBCPP_INLINE_VISIBILITY 1496basic_iostream<_CharT, _Traits>::basic_iostream(basic_iostream&& __rhs) 1497 : basic_istream<_CharT, _Traits>(_VSTD::move(__rhs)) 1498{ 1499} 1500 1501template <class _CharT, class _Traits> 1502inline _LIBCPP_INLINE_VISIBILITY 1503basic_iostream<_CharT, _Traits>& 1504basic_iostream<_CharT, _Traits>::operator=(basic_iostream&& __rhs) 1505{ 1506 swap(__rhs); 1507 return *this; 1508} 1509 1510#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1511 1512template <class _CharT, class _Traits> 1513basic_iostream<_CharT, _Traits>::~basic_iostream() 1514{ 1515} 1516 1517template <class _CharT, class _Traits> 1518inline _LIBCPP_INLINE_VISIBILITY 1519void 1520basic_iostream<_CharT, _Traits>::swap(basic_iostream& __rhs) 1521{ 1522 basic_istream<char_type, traits_type>::swap(__rhs); 1523} 1524 1525template<class _CharT, class _Traits, class _Allocator> 1526basic_istream<_CharT, _Traits>& 1527operator>>(basic_istream<_CharT, _Traits>& __is, 1528 basic_string<_CharT, _Traits, _Allocator>& __str) 1529{ 1530#ifndef _LIBCPP_NO_EXCEPTIONS 1531 try 1532 { 1533#endif // _LIBCPP_NO_EXCEPTIONS 1534 typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 1535 if (__sen) 1536 { 1537 __str.clear(); 1538 streamsize __n = __is.width(); 1539 if (__n <= 0) 1540 __n = __str.max_size(); 1541 if (__n <= 0) 1542 __n = numeric_limits<streamsize>::max(); 1543 streamsize __c = 0; 1544 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc()); 1545 ios_base::iostate __err = ios_base::goodbit; 1546 while (__c < __n) 1547 { 1548 typename _Traits::int_type __i = __is.rdbuf()->sgetc(); 1549 if (_Traits::eq_int_type(__i, _Traits::eof())) 1550 { 1551 __err |= ios_base::eofbit; 1552 break; 1553 } 1554 _CharT __ch = _Traits::to_char_type(__i); 1555 if (__ct.is(__ct.space, __ch)) 1556 break; 1557 __str.push_back(__ch); 1558 ++__c; 1559 __is.rdbuf()->sbumpc(); 1560 } 1561 __is.width(0); 1562 if (__c == 0) 1563 __err |= ios_base::failbit; 1564 __is.setstate(__err); 1565 } 1566 else 1567 __is.setstate(ios_base::failbit); 1568#ifndef _LIBCPP_NO_EXCEPTIONS 1569 } 1570 catch (...) 1571 { 1572 __is.__set_badbit_and_consider_rethrow(); 1573 } 1574#endif // _LIBCPP_NO_EXCEPTIONS 1575 return __is; 1576} 1577 1578template<class _CharT, class _Traits, class _Allocator> 1579basic_istream<_CharT, _Traits>& 1580getline(basic_istream<_CharT, _Traits>& __is, 1581 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm) 1582{ 1583#ifndef _LIBCPP_NO_EXCEPTIONS 1584 try 1585 { 1586#endif // _LIBCPP_NO_EXCEPTIONS 1587 typename basic_istream<_CharT, _Traits>::sentry __sen(__is, true); 1588 if (__sen) 1589 { 1590 __str.clear(); 1591 ios_base::iostate __err = ios_base::goodbit; 1592 streamsize __extr = 0; 1593 while (true) 1594 { 1595 typename _Traits::int_type __i = __is.rdbuf()->sbumpc(); 1596 if (_Traits::eq_int_type(__i, _Traits::eof())) 1597 { 1598 __err |= ios_base::eofbit; 1599 break; 1600 } 1601 ++__extr; 1602 _CharT __ch = _Traits::to_char_type(__i); 1603 if (_Traits::eq(__ch, __dlm)) 1604 break; 1605 __str.push_back(__ch); 1606 if (__str.size() == __str.max_size()) 1607 { 1608 __err |= ios_base::failbit; 1609 break; 1610 } 1611 } 1612 if (__extr == 0) 1613 __err |= ios_base::failbit; 1614 __is.setstate(__err); 1615 } 1616#ifndef _LIBCPP_NO_EXCEPTIONS 1617 } 1618 catch (...) 1619 { 1620 __is.__set_badbit_and_consider_rethrow(); 1621 } 1622#endif // _LIBCPP_NO_EXCEPTIONS 1623 return __is; 1624} 1625 1626template<class _CharT, class _Traits, class _Allocator> 1627inline _LIBCPP_INLINE_VISIBILITY 1628basic_istream<_CharT, _Traits>& 1629getline(basic_istream<_CharT, _Traits>& __is, 1630 basic_string<_CharT, _Traits, _Allocator>& __str) 1631{ 1632 return getline(__is, __str, __is.widen('\n')); 1633} 1634 1635#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1636 1637template<class _CharT, class _Traits, class _Allocator> 1638inline _LIBCPP_INLINE_VISIBILITY 1639basic_istream<_CharT, _Traits>& 1640getline(basic_istream<_CharT, _Traits>&& __is, 1641 basic_string<_CharT, _Traits, _Allocator>& __str, _CharT __dlm) 1642{ 1643 return getline(__is, __str, __dlm); 1644} 1645 1646template<class _CharT, class _Traits, class _Allocator> 1647inline _LIBCPP_INLINE_VISIBILITY 1648basic_istream<_CharT, _Traits>& 1649getline(basic_istream<_CharT, _Traits>&& __is, 1650 basic_string<_CharT, _Traits, _Allocator>& __str) 1651{ 1652 return getline(__is, __str, __is.widen('\n')); 1653} 1654 1655#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1656 1657template <class _CharT, class _Traits, size_t _Size> 1658basic_istream<_CharT, _Traits>& 1659operator>>(basic_istream<_CharT, _Traits>& __is, bitset<_Size>& __x) 1660{ 1661#ifndef _LIBCPP_NO_EXCEPTIONS 1662 try 1663 { 1664#endif // _LIBCPP_NO_EXCEPTIONS 1665 typename basic_istream<_CharT, _Traits>::sentry __sen(__is); 1666 if (__sen) 1667 { 1668 basic_string<_CharT, _Traits> __str; 1669 const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__is.getloc()); 1670 streamsize __c = 0; 1671 ios_base::iostate __err = ios_base::goodbit; 1672 _CharT __zero = __ct.widen('0'); 1673 _CharT __one = __ct.widen('1'); 1674 while (__c < _Size) 1675 { 1676 typename _Traits::int_type __i = __is.rdbuf()->sgetc(); 1677 if (_Traits::eq_int_type(__i, _Traits::eof())) 1678 { 1679 __err |= ios_base::eofbit; 1680 break; 1681 } 1682 _CharT __ch = _Traits::to_char_type(__i); 1683 if (!_Traits::eq(__ch, __zero) && !_Traits::eq(__ch, __one)) 1684 break; 1685 __str.push_back(__ch); 1686 ++__c; 1687 __is.rdbuf()->sbumpc(); 1688 } 1689 __x = bitset<_Size>(__str); 1690 if (__c == 0) 1691 __err |= ios_base::failbit; 1692 __is.setstate(__err); 1693 } 1694 else 1695 __is.setstate(ios_base::failbit); 1696#ifndef _LIBCPP_NO_EXCEPTIONS 1697 } 1698 catch (...) 1699 { 1700 __is.__set_badbit_and_consider_rethrow(); 1701 } 1702#endif // _LIBCPP_NO_EXCEPTIONS 1703 return __is; 1704} 1705 1706extern template class basic_istream<char>; 1707extern template class basic_istream<wchar_t>; 1708extern template class basic_iostream<char>; 1709 1710_LIBCPP_END_NAMESPACE_STD 1711 1712#endif // _LIBCPP_ISTREAM 1713