1 // -*- C++ -*- 2 //===---------------------------- ios -------------------------------------===// 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_IOS 12 #define _LIBCPP_IOS 13 14 /* 15 ios synopsis 16 17 #include <iosfwd> 18 19 namespace std 20 { 21 22 typedef OFF_T streamoff; 23 typedef SZ_T streamsize; 24 template <class stateT> class fpos; 25 26 class ios_base 27 { 28 public: 29 class failure; 30 31 typedef T1 fmtflags; 32 static constexpr fmtflags boolalpha; 33 static constexpr fmtflags dec; 34 static constexpr fmtflags fixed; 35 static constexpr fmtflags hex; 36 static constexpr fmtflags internal; 37 static constexpr fmtflags left; 38 static constexpr fmtflags oct; 39 static constexpr fmtflags right; 40 static constexpr fmtflags scientific; 41 static constexpr fmtflags showbase; 42 static constexpr fmtflags showpoint; 43 static constexpr fmtflags showpos; 44 static constexpr fmtflags skipws; 45 static constexpr fmtflags unitbuf; 46 static constexpr fmtflags uppercase; 47 static constexpr fmtflags adjustfield; 48 static constexpr fmtflags basefield; 49 static constexpr fmtflags floatfield; 50 51 typedef T2 iostate; 52 static constexpr iostate badbit; 53 static constexpr iostate eofbit; 54 static constexpr iostate failbit; 55 static constexpr iostate goodbit; 56 57 typedef T3 openmode; 58 static constexpr openmode app; 59 static constexpr openmode ate; 60 static constexpr openmode binary; 61 static constexpr openmode in; 62 static constexpr openmode out; 63 static constexpr openmode trunc; 64 65 typedef T4 seekdir; 66 static constexpr seekdir beg; 67 static constexpr seekdir cur; 68 static constexpr seekdir end; 69 70 class Init; 71 72 // 27.5.2.2 fmtflags state: 73 fmtflags flags() const; 74 fmtflags flags(fmtflags fmtfl); 75 fmtflags setf(fmtflags fmtfl); 76 fmtflags setf(fmtflags fmtfl, fmtflags mask); 77 void unsetf(fmtflags mask); 78 79 streamsize precision() const; 80 streamsize precision(streamsize prec); 81 streamsize width() const; 82 streamsize width(streamsize wide); 83 84 // 27.5.2.3 locales: 85 locale imbue(const locale& loc); 86 locale getloc() const; 87 88 // 27.5.2.5 storage: 89 static int xalloc(); 90 long& iword(int index); 91 void*& pword(int index); 92 93 // destructor 94 virtual ~ios_base(); 95 96 // 27.5.2.6 callbacks; 97 enum event { erase_event, imbue_event, copyfmt_event }; 98 typedef void (*event_callback)(event, ios_base&, int index); 99 void register_callback(event_callback fn, int index); 100 101 ios_base(const ios_base&) = delete; 102 ios_base& operator=(const ios_base&) = delete; 103 104 static bool sync_with_stdio(bool sync = true); 105 106 protected: 107 ios_base(); 108 }; 109 110 template <class charT, class traits = char_traits<charT> > 111 class basic_ios 112 : public ios_base 113 { 114 public: 115 // types: 116 typedef charT char_type; 117 typedef typename traits::int_type int_type; 118 typedef typename traits::pos_type pos_type; 119 typedef typename traits::off_type off_type; 120 typedef traits traits_type; 121 122 operator unspecified-bool-type() const; 123 bool operator!() const; 124 iostate rdstate() const; 125 void clear(iostate state = goodbit); 126 void setstate(iostate state); 127 bool good() const; 128 bool eof() const; 129 bool fail() const; 130 bool bad() const; 131 132 iostate exceptions() const; 133 void exceptions(iostate except); 134 135 // 27.5.4.1 Constructor/destructor: 136 explicit basic_ios(basic_streambuf<charT,traits>* sb); 137 virtual ~basic_ios(); 138 139 // 27.5.4.2 Members: 140 basic_ostream<charT,traits>* tie() const; 141 basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr); 142 143 basic_streambuf<charT,traits>* rdbuf() const; 144 basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb); 145 146 basic_ios& copyfmt(const basic_ios& rhs); 147 148 char_type fill() const; 149 char_type fill(char_type ch); 150 151 locale imbue(const locale& loc); 152 153 char narrow(char_type c, char dfault) const; 154 char_type widen(char c) const; 155 156 basic_ios(const basic_ios& ) = delete; 157 basic_ios& operator=(const basic_ios&) = delete; 158 159 protected: 160 basic_ios(); 161 void init(basic_streambuf<charT,traits>* sb); 162 void move(basic_ios& rhs); 163 void swap(basic_ios& rhs) noexcept; 164 void set_rdbuf(basic_streambuf<charT, traits>* sb); 165 }; 166 167 // 27.5.5, manipulators: 168 ios_base& boolalpha (ios_base& str); 169 ios_base& noboolalpha(ios_base& str); 170 ios_base& showbase (ios_base& str); 171 ios_base& noshowbase (ios_base& str); 172 ios_base& showpoint (ios_base& str); 173 ios_base& noshowpoint(ios_base& str); 174 ios_base& showpos (ios_base& str); 175 ios_base& noshowpos (ios_base& str); 176 ios_base& skipws (ios_base& str); 177 ios_base& noskipws (ios_base& str); 178 ios_base& uppercase (ios_base& str); 179 ios_base& nouppercase(ios_base& str); 180 ios_base& unitbuf (ios_base& str); 181 ios_base& nounitbuf (ios_base& str); 182 183 // 27.5.5.2 adjustfield: 184 ios_base& internal (ios_base& str); 185 ios_base& left (ios_base& str); 186 ios_base& right (ios_base& str); 187 188 // 27.5.5.3 basefield: 189 ios_base& dec (ios_base& str); 190 ios_base& hex (ios_base& str); 191 ios_base& oct (ios_base& str); 192 193 // 27.5.5.4 floatfield: 194 ios_base& fixed (ios_base& str); 195 ios_base& scientific (ios_base& str); 196 ios_base& hexfloat (ios_base& str); 197 ios_base& defaultfloat(ios_base& str); 198 199 // 27.5.5.5 error reporting: 200 enum class io_errc 201 { 202 stream = 1 203 }; 204 205 concept_map ErrorCodeEnum<io_errc> { }; 206 error_code make_error_code(io_errc e); 207 error_condition make_error_condition(io_errc e); 208 storage-class-specifier const error_category& iostream_category; 209 210 } // std 211 212 */ 213 214 #include <__config> 215 #include <iosfwd> 216 #include <__locale> 217 #include <system_error> 218 219 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 220 #pragma GCC system_header 221 #endif 222 223 _LIBCPP_BEGIN_NAMESPACE_STD 224 225 typedef ptrdiff_t streamsize; 226 227 class _LIBCPP_TYPE_VIS ios_base 228 { 229 public: 230 class _LIBCPP_TYPE_VIS failure; 231 232 typedef unsigned int fmtflags; 233 static const fmtflags boolalpha = 0x0001; 234 static const fmtflags dec = 0x0002; 235 static const fmtflags fixed = 0x0004; 236 static const fmtflags hex = 0x0008; 237 static const fmtflags internal = 0x0010; 238 static const fmtflags left = 0x0020; 239 static const fmtflags oct = 0x0040; 240 static const fmtflags right = 0x0080; 241 static const fmtflags scientific = 0x0100; 242 static const fmtflags showbase = 0x0200; 243 static const fmtflags showpoint = 0x0400; 244 static const fmtflags showpos = 0x0800; 245 static const fmtflags skipws = 0x1000; 246 static const fmtflags unitbuf = 0x2000; 247 static const fmtflags uppercase = 0x4000; 248 static const fmtflags adjustfield = left | right | internal; 249 static const fmtflags basefield = dec | oct | hex; 250 static const fmtflags floatfield = scientific | fixed; 251 252 typedef unsigned int iostate; 253 typedef iostate io_state; 254 static const iostate badbit = 0x1; 255 static const iostate eofbit = 0x2; 256 static const iostate failbit = 0x4; 257 static const iostate goodbit = 0x0; 258 259 typedef unsigned int openmode; 260 typedef openmode open_mode; 261 static const openmode app = 0x01; 262 static const openmode ate = 0x02; 263 static const openmode binary = 0x04; 264 static const openmode in = 0x08; 265 static const openmode out = 0x10; 266 static const openmode trunc = 0x20; 267 268 enum seekdir {beg, cur, end}; 269 typedef seekdir seek_dir; 270 271 typedef _VSTD::streamoff streamoff; 272 typedef _VSTD::streampos streampos; 273 274 class _LIBCPP_TYPE_VIS Init; 275 276 // 27.5.2.2 fmtflags state: 277 _LIBCPP_INLINE_VISIBILITY fmtflags flags() const; 278 _LIBCPP_INLINE_VISIBILITY fmtflags flags(fmtflags __fmtfl); 279 _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl); 280 _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl, fmtflags __mask); 281 _LIBCPP_INLINE_VISIBILITY void unsetf(fmtflags __mask); 282 283 _LIBCPP_INLINE_VISIBILITY streamsize precision() const; 284 _LIBCPP_INLINE_VISIBILITY streamsize precision(streamsize __prec); 285 _LIBCPP_INLINE_VISIBILITY streamsize width() const; 286 _LIBCPP_INLINE_VISIBILITY streamsize width(streamsize __wide); 287 288 // 27.5.2.3 locales: 289 locale imbue(const locale& __loc); 290 locale getloc() const; 291 292 // 27.5.2.5 storage: 293 static int xalloc(); 294 long& iword(int __index); 295 void*& pword(int __index); 296 297 // destructor 298 virtual ~ios_base(); 299 300 // 27.5.2.6 callbacks; 301 enum event { erase_event, imbue_event, copyfmt_event }; 302 typedef void (*event_callback)(event, ios_base&, int __index); 303 void register_callback(event_callback __fn, int __index); 304 305 private: 306 ios_base(const ios_base&); // = delete; 307 ios_base& operator=(const ios_base&); // = delete; 308 309 public: 310 static bool sync_with_stdio(bool __sync = true); 311 312 _LIBCPP_INLINE_VISIBILITY iostate rdstate() const; 313 void clear(iostate __state = goodbit); 314 _LIBCPP_INLINE_VISIBILITY void setstate(iostate __state); 315 316 _LIBCPP_INLINE_VISIBILITY bool good() const; 317 _LIBCPP_INLINE_VISIBILITY bool eof() const; 318 _LIBCPP_INLINE_VISIBILITY bool fail() const; 319 _LIBCPP_INLINE_VISIBILITY bool bad() const; 320 321 _LIBCPP_INLINE_VISIBILITY iostate exceptions() const; 322 _LIBCPP_INLINE_VISIBILITY void exceptions(iostate __except); 323 324 void __set_badbit_and_consider_rethrow(); 325 void __set_failbit_and_consider_rethrow(); 326 327 protected: 328 _LIBCPP_INLINE_VISIBILITY 329 ios_base() {// purposefully does no initialization 330 } 331 332 void init(void* __sb); 333 _LIBCPP_ALWAYS_INLINE void* rdbuf() const {return __rdbuf_;} 334 335 _LIBCPP_ALWAYS_INLINE 336 void rdbuf(void* __sb) 337 { 338 __rdbuf_ = __sb; 339 clear(); 340 } 341 342 void __call_callbacks(event); 343 void copyfmt(const ios_base&); 344 void move(ios_base&); 345 void swap(ios_base&) _NOEXCEPT; 346 347 _LIBCPP_ALWAYS_INLINE 348 void set_rdbuf(void* __sb) 349 { 350 __rdbuf_ = __sb; 351 } 352 353 private: 354 // All data members must be scalars 355 fmtflags __fmtflags_; 356 streamsize __precision_; 357 streamsize __width_; 358 iostate __rdstate_; 359 iostate __exceptions_; 360 void* __rdbuf_; 361 void* __loc_; 362 event_callback* __fn_; 363 int* __index_; 364 size_t __event_size_; 365 size_t __event_cap_; 366 static int __xindex_; 367 long* __iarray_; 368 size_t __iarray_size_; 369 size_t __iarray_cap_; 370 void** __parray_; 371 size_t __parray_size_; 372 size_t __parray_cap_; 373 }; 374 375 //enum class io_errc 376 _LIBCPP_DECLARE_STRONG_ENUM(io_errc) 377 { 378 stream = 1 379 }; 380 _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc) 381 382 template <> 383 struct _LIBCPP_TYPE_VIS is_error_code_enum<io_errc> : public true_type { }; 384 385 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS 386 template <> 387 struct _LIBCPP_TYPE_VIS is_error_code_enum<io_errc::__lx> : public true_type { }; 388 #endif 389 390 _LIBCPP_FUNC_VIS 391 const error_category& iostream_category(); 392 393 inline _LIBCPP_INLINE_VISIBILITY 394 error_code 395 make_error_code(io_errc __e) 396 { 397 return error_code(static_cast<int>(__e), iostream_category()); 398 } 399 400 inline _LIBCPP_INLINE_VISIBILITY 401 error_condition 402 make_error_condition(io_errc __e) 403 { 404 return error_condition(static_cast<int>(__e), iostream_category()); 405 } 406 407 class _LIBCPP_EXCEPTION_ABI ios_base::failure 408 : public system_error 409 { 410 public: 411 explicit failure(const string& __msg, const error_code& __ec = io_errc::stream); 412 explicit failure(const char* __msg, const error_code& __ec = io_errc::stream); 413 virtual ~failure() throw(); 414 }; 415 416 class _LIBCPP_TYPE_VIS ios_base::Init 417 { 418 public: 419 Init(); 420 ~Init(); 421 }; 422 423 // fmtflags 424 425 inline _LIBCPP_INLINE_VISIBILITY 426 ios_base::fmtflags 427 ios_base::flags() const 428 { 429 return __fmtflags_; 430 } 431 432 inline _LIBCPP_INLINE_VISIBILITY 433 ios_base::fmtflags 434 ios_base::flags(fmtflags __fmtfl) 435 { 436 fmtflags __r = __fmtflags_; 437 __fmtflags_ = __fmtfl; 438 return __r; 439 } 440 441 inline _LIBCPP_INLINE_VISIBILITY 442 ios_base::fmtflags 443 ios_base::setf(fmtflags __fmtfl) 444 { 445 fmtflags __r = __fmtflags_; 446 __fmtflags_ |= __fmtfl; 447 return __r; 448 } 449 450 inline _LIBCPP_INLINE_VISIBILITY 451 void 452 ios_base::unsetf(fmtflags __mask) 453 { 454 __fmtflags_ &= ~__mask; 455 } 456 457 inline _LIBCPP_INLINE_VISIBILITY 458 ios_base::fmtflags 459 ios_base::setf(fmtflags __fmtfl, fmtflags __mask) 460 { 461 fmtflags __r = __fmtflags_; 462 unsetf(__mask); 463 __fmtflags_ |= __fmtfl & __mask; 464 return __r; 465 } 466 467 // precision 468 469 inline _LIBCPP_INLINE_VISIBILITY 470 streamsize 471 ios_base::precision() const 472 { 473 return __precision_; 474 } 475 476 inline _LIBCPP_INLINE_VISIBILITY 477 streamsize 478 ios_base::precision(streamsize __prec) 479 { 480 streamsize __r = __precision_; 481 __precision_ = __prec; 482 return __r; 483 } 484 485 // width 486 487 inline _LIBCPP_INLINE_VISIBILITY 488 streamsize 489 ios_base::width() const 490 { 491 return __width_; 492 } 493 494 inline _LIBCPP_INLINE_VISIBILITY 495 streamsize 496 ios_base::width(streamsize __wide) 497 { 498 streamsize __r = __width_; 499 __width_ = __wide; 500 return __r; 501 } 502 503 // iostate 504 505 inline _LIBCPP_INLINE_VISIBILITY 506 ios_base::iostate 507 ios_base::rdstate() const 508 { 509 return __rdstate_; 510 } 511 512 inline _LIBCPP_INLINE_VISIBILITY 513 void 514 ios_base::setstate(iostate __state) 515 { 516 clear(__rdstate_ | __state); 517 } 518 519 inline _LIBCPP_INLINE_VISIBILITY 520 bool 521 ios_base::good() const 522 { 523 return __rdstate_ == 0; 524 } 525 526 inline _LIBCPP_INLINE_VISIBILITY 527 bool 528 ios_base::eof() const 529 { 530 return __rdstate_ & eofbit; 531 } 532 533 inline _LIBCPP_INLINE_VISIBILITY 534 bool 535 ios_base::fail() const 536 { 537 return __rdstate_ & (failbit | badbit); 538 } 539 540 inline _LIBCPP_INLINE_VISIBILITY 541 bool 542 ios_base::bad() const 543 { 544 return __rdstate_ & badbit; 545 } 546 547 inline _LIBCPP_INLINE_VISIBILITY 548 ios_base::iostate 549 ios_base::exceptions() const 550 { 551 return __exceptions_; 552 } 553 554 inline _LIBCPP_INLINE_VISIBILITY 555 void 556 ios_base::exceptions(iostate __except) 557 { 558 __exceptions_ = __except; 559 clear(__rdstate_); 560 } 561 562 template <class _CharT, class _Traits> 563 class _LIBCPP_TYPE_VIS basic_ios 564 : public ios_base 565 { 566 public: 567 // types: 568 typedef _CharT char_type; 569 typedef _Traits traits_type; 570 571 typedef typename traits_type::int_type int_type; 572 typedef typename traits_type::pos_type pos_type; 573 typedef typename traits_type::off_type off_type; 574 575 _LIBCPP_ALWAYS_INLINE 576 _LIBCPP_EXPLICIT 577 operator bool() const {return !fail();} 578 _LIBCPP_ALWAYS_INLINE bool operator!() const {return fail();} 579 _LIBCPP_ALWAYS_INLINE iostate rdstate() const {return ios_base::rdstate();} 580 _LIBCPP_ALWAYS_INLINE void clear(iostate __state = goodbit) {ios_base::clear(__state);} 581 _LIBCPP_ALWAYS_INLINE void setstate(iostate __state) {ios_base::setstate(__state);} 582 _LIBCPP_ALWAYS_INLINE bool good() const {return ios_base::good();} 583 _LIBCPP_ALWAYS_INLINE bool eof() const {return ios_base::eof();} 584 _LIBCPP_ALWAYS_INLINE bool fail() const {return ios_base::fail();} 585 _LIBCPP_ALWAYS_INLINE bool bad() const {return ios_base::bad();} 586 587 _LIBCPP_ALWAYS_INLINE iostate exceptions() const {return ios_base::exceptions();} 588 _LIBCPP_ALWAYS_INLINE void exceptions(iostate __except) {ios_base::exceptions(__except);} 589 590 // 27.5.4.1 Constructor/destructor: 591 _LIBCPP_INLINE_VISIBILITY 592 explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb); 593 virtual ~basic_ios(); 594 595 // 27.5.4.2 Members: 596 _LIBCPP_INLINE_VISIBILITY 597 basic_ostream<char_type, traits_type>* tie() const; 598 _LIBCPP_INLINE_VISIBILITY 599 basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr); 600 601 _LIBCPP_INLINE_VISIBILITY 602 basic_streambuf<char_type, traits_type>* rdbuf() const; 603 _LIBCPP_INLINE_VISIBILITY 604 basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb); 605 606 basic_ios& copyfmt(const basic_ios& __rhs); 607 608 _LIBCPP_INLINE_VISIBILITY 609 char_type fill() const; 610 _LIBCPP_INLINE_VISIBILITY 611 char_type fill(char_type __ch); 612 613 _LIBCPP_INLINE_VISIBILITY 614 locale imbue(const locale& __loc); 615 616 _LIBCPP_INLINE_VISIBILITY 617 char narrow(char_type __c, char __dfault) const; 618 _LIBCPP_INLINE_VISIBILITY 619 char_type widen(char __c) const; 620 621 protected: 622 _LIBCPP_ALWAYS_INLINE 623 basic_ios() {// purposefully does no initialization 624 } 625 _LIBCPP_INLINE_VISIBILITY 626 void init(basic_streambuf<char_type, traits_type>* __sb); 627 628 _LIBCPP_INLINE_VISIBILITY 629 void move(basic_ios& __rhs); 630 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 631 _LIBCPP_ALWAYS_INLINE 632 void move(basic_ios&& __rhs) {move(__rhs);} 633 #endif 634 _LIBCPP_INLINE_VISIBILITY 635 void swap(basic_ios& __rhs) _NOEXCEPT; 636 _LIBCPP_INLINE_VISIBILITY 637 void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb); 638 private: 639 basic_ostream<char_type, traits_type>* __tie_; 640 mutable int_type __fill_; 641 }; 642 643 template <class _CharT, class _Traits> 644 inline _LIBCPP_INLINE_VISIBILITY 645 basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb) 646 { 647 init(__sb); 648 } 649 650 template <class _CharT, class _Traits> 651 basic_ios<_CharT, _Traits>::~basic_ios() 652 { 653 } 654 655 template <class _CharT, class _Traits> 656 inline _LIBCPP_INLINE_VISIBILITY 657 void 658 basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb) 659 { 660 ios_base::init(__sb); 661 __tie_ = 0; 662 __fill_ = traits_type::eof(); 663 } 664 665 template <class _CharT, class _Traits> 666 inline _LIBCPP_INLINE_VISIBILITY 667 basic_ostream<_CharT, _Traits>* 668 basic_ios<_CharT, _Traits>::tie() const 669 { 670 return __tie_; 671 } 672 673 template <class _CharT, class _Traits> 674 inline _LIBCPP_INLINE_VISIBILITY 675 basic_ostream<_CharT, _Traits>* 676 basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr) 677 { 678 basic_ostream<char_type, traits_type>* __r = __tie_; 679 __tie_ = __tiestr; 680 return __r; 681 } 682 683 template <class _CharT, class _Traits> 684 inline _LIBCPP_INLINE_VISIBILITY 685 basic_streambuf<_CharT, _Traits>* 686 basic_ios<_CharT, _Traits>::rdbuf() const 687 { 688 return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf()); 689 } 690 691 template <class _CharT, class _Traits> 692 inline _LIBCPP_INLINE_VISIBILITY 693 basic_streambuf<_CharT, _Traits>* 694 basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb) 695 { 696 basic_streambuf<char_type, traits_type>* __r = rdbuf(); 697 ios_base::rdbuf(__sb); 698 return __r; 699 } 700 701 template <class _CharT, class _Traits> 702 inline _LIBCPP_INLINE_VISIBILITY 703 locale 704 basic_ios<_CharT, _Traits>::imbue(const locale& __loc) 705 { 706 locale __r = getloc(); 707 ios_base::imbue(__loc); 708 if (rdbuf()) 709 rdbuf()->pubimbue(__loc); 710 return __r; 711 } 712 713 template <class _CharT, class _Traits> 714 inline _LIBCPP_INLINE_VISIBILITY 715 char 716 basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const 717 { 718 return use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault); 719 } 720 721 template <class _CharT, class _Traits> 722 inline _LIBCPP_INLINE_VISIBILITY 723 _CharT 724 basic_ios<_CharT, _Traits>::widen(char __c) const 725 { 726 return use_facet<ctype<char_type> >(getloc()).widen(__c); 727 } 728 729 template <class _CharT, class _Traits> 730 inline _LIBCPP_INLINE_VISIBILITY 731 _CharT 732 basic_ios<_CharT, _Traits>::fill() const 733 { 734 if (traits_type::eq_int_type(traits_type::eof(), __fill_)) 735 __fill_ = widen(' '); 736 return __fill_; 737 } 738 739 template <class _CharT, class _Traits> 740 inline _LIBCPP_INLINE_VISIBILITY 741 _CharT 742 basic_ios<_CharT, _Traits>::fill(char_type __ch) 743 { 744 char_type __r = __fill_; 745 __fill_ = __ch; 746 return __r; 747 } 748 749 template <class _CharT, class _Traits> 750 basic_ios<_CharT, _Traits>& 751 basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs) 752 { 753 if (this != &__rhs) 754 { 755 __call_callbacks(erase_event); 756 ios_base::copyfmt(__rhs); 757 __tie_ = __rhs.__tie_; 758 __fill_ = __rhs.__fill_; 759 __call_callbacks(copyfmt_event); 760 exceptions(__rhs.exceptions()); 761 } 762 return *this; 763 } 764 765 template <class _CharT, class _Traits> 766 inline _LIBCPP_INLINE_VISIBILITY 767 void 768 basic_ios<_CharT, _Traits>::move(basic_ios& __rhs) 769 { 770 ios_base::move(__rhs); 771 __tie_ = __rhs.__tie_; 772 __rhs.__tie_ = 0; 773 __fill_ = __rhs.__fill_; 774 } 775 776 template <class _CharT, class _Traits> 777 inline _LIBCPP_INLINE_VISIBILITY 778 void 779 basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT 780 { 781 ios_base::swap(__rhs); 782 _VSTD::swap(__tie_, __rhs.__tie_); 783 _VSTD::swap(__fill_, __rhs.__fill_); 784 } 785 786 template <class _CharT, class _Traits> 787 inline _LIBCPP_INLINE_VISIBILITY 788 void 789 basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb) 790 { 791 ios_base::set_rdbuf(__sb); 792 } 793 794 inline _LIBCPP_INLINE_VISIBILITY 795 ios_base& 796 boolalpha(ios_base& __str) 797 { 798 __str.setf(ios_base::boolalpha); 799 return __str; 800 } 801 802 inline _LIBCPP_INLINE_VISIBILITY 803 ios_base& 804 noboolalpha(ios_base& __str) 805 { 806 __str.unsetf(ios_base::boolalpha); 807 return __str; 808 } 809 810 inline _LIBCPP_INLINE_VISIBILITY 811 ios_base& 812 showbase(ios_base& __str) 813 { 814 __str.setf(ios_base::showbase); 815 return __str; 816 } 817 818 inline _LIBCPP_INLINE_VISIBILITY 819 ios_base& 820 noshowbase(ios_base& __str) 821 { 822 __str.unsetf(ios_base::showbase); 823 return __str; 824 } 825 826 inline _LIBCPP_INLINE_VISIBILITY 827 ios_base& 828 showpoint(ios_base& __str) 829 { 830 __str.setf(ios_base::showpoint); 831 return __str; 832 } 833 834 inline _LIBCPP_INLINE_VISIBILITY 835 ios_base& 836 noshowpoint(ios_base& __str) 837 { 838 __str.unsetf(ios_base::showpoint); 839 return __str; 840 } 841 842 inline _LIBCPP_INLINE_VISIBILITY 843 ios_base& 844 showpos(ios_base& __str) 845 { 846 __str.setf(ios_base::showpos); 847 return __str; 848 } 849 850 inline _LIBCPP_INLINE_VISIBILITY 851 ios_base& 852 noshowpos(ios_base& __str) 853 { 854 __str.unsetf(ios_base::showpos); 855 return __str; 856 } 857 858 inline _LIBCPP_INLINE_VISIBILITY 859 ios_base& 860 skipws(ios_base& __str) 861 { 862 __str.setf(ios_base::skipws); 863 return __str; 864 } 865 866 inline _LIBCPP_INLINE_VISIBILITY 867 ios_base& 868 noskipws(ios_base& __str) 869 { 870 __str.unsetf(ios_base::skipws); 871 return __str; 872 } 873 874 inline _LIBCPP_INLINE_VISIBILITY 875 ios_base& 876 uppercase(ios_base& __str) 877 { 878 __str.setf(ios_base::uppercase); 879 return __str; 880 } 881 882 inline _LIBCPP_INLINE_VISIBILITY 883 ios_base& 884 nouppercase(ios_base& __str) 885 { 886 __str.unsetf(ios_base::uppercase); 887 return __str; 888 } 889 890 inline _LIBCPP_INLINE_VISIBILITY 891 ios_base& 892 unitbuf(ios_base& __str) 893 { 894 __str.setf(ios_base::unitbuf); 895 return __str; 896 } 897 898 inline _LIBCPP_INLINE_VISIBILITY 899 ios_base& 900 nounitbuf(ios_base& __str) 901 { 902 __str.unsetf(ios_base::unitbuf); 903 return __str; 904 } 905 906 inline _LIBCPP_INLINE_VISIBILITY 907 ios_base& 908 internal(ios_base& __str) 909 { 910 __str.setf(ios_base::internal, ios_base::adjustfield); 911 return __str; 912 } 913 914 inline _LIBCPP_INLINE_VISIBILITY 915 ios_base& 916 left(ios_base& __str) 917 { 918 __str.setf(ios_base::left, ios_base::adjustfield); 919 return __str; 920 } 921 922 inline _LIBCPP_INLINE_VISIBILITY 923 ios_base& 924 right(ios_base& __str) 925 { 926 __str.setf(ios_base::right, ios_base::adjustfield); 927 return __str; 928 } 929 930 inline _LIBCPP_INLINE_VISIBILITY 931 ios_base& 932 dec(ios_base& __str) 933 { 934 __str.setf(ios_base::dec, ios_base::basefield); 935 return __str; 936 } 937 938 inline _LIBCPP_INLINE_VISIBILITY 939 ios_base& 940 hex(ios_base& __str) 941 { 942 __str.setf(ios_base::hex, ios_base::basefield); 943 return __str; 944 } 945 946 inline _LIBCPP_INLINE_VISIBILITY 947 ios_base& 948 oct(ios_base& __str) 949 { 950 __str.setf(ios_base::oct, ios_base::basefield); 951 return __str; 952 } 953 954 inline _LIBCPP_INLINE_VISIBILITY 955 ios_base& 956 fixed(ios_base& __str) 957 { 958 __str.setf(ios_base::fixed, ios_base::floatfield); 959 return __str; 960 } 961 962 inline _LIBCPP_INLINE_VISIBILITY 963 ios_base& 964 scientific(ios_base& __str) 965 { 966 __str.setf(ios_base::scientific, ios_base::floatfield); 967 return __str; 968 } 969 970 inline _LIBCPP_INLINE_VISIBILITY 971 ios_base& 972 hexfloat(ios_base& __str) 973 { 974 __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield); 975 return __str; 976 } 977 978 inline _LIBCPP_INLINE_VISIBILITY 979 ios_base& 980 defaultfloat(ios_base& __str) 981 { 982 __str.unsetf(ios_base::floatfield); 983 return __str; 984 } 985 986 template <class _CharT, class _Traits> 987 class __save_flags 988 { 989 typedef basic_ios<_CharT, _Traits> __stream_type; 990 typedef typename __stream_type::fmtflags fmtflags; 991 992 __stream_type& __stream_; 993 fmtflags __fmtflags_; 994 _CharT __fill_; 995 996 __save_flags(const __save_flags&); 997 __save_flags& operator=(const __save_flags&); 998 public: 999 _LIBCPP_INLINE_VISIBILITY 1000 explicit __save_flags(__stream_type& __stream) 1001 : __stream_(__stream), 1002 __fmtflags_(__stream.flags()), 1003 __fill_(__stream.fill()) 1004 {} 1005 _LIBCPP_INLINE_VISIBILITY 1006 ~__save_flags() 1007 { 1008 __stream_.flags(__fmtflags_); 1009 __stream_.fill(__fill_); 1010 } 1011 }; 1012 1013 _LIBCPP_END_NAMESPACE_STD 1014 1015 #endif // _LIBCPP_IOS 1016
