1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef _LIBCPP___CXX03_IOS 11#define _LIBCPP___CXX03_IOS 12 13/* 14 ios synopsis 15 16#include <__cxx03/iosfwd> 17 18namespace std 19{ 20 21typedef OFF_T streamoff; 22typedef SZ_T streamsize; 23template <class stateT> class fpos; 24 25class ios_base 26{ 27public: 28 class failure; 29 30 typedef T1 fmtflags; 31 static constexpr fmtflags boolalpha; 32 static constexpr fmtflags dec; 33 static constexpr fmtflags fixed; 34 static constexpr fmtflags hex; 35 static constexpr fmtflags internal; 36 static constexpr fmtflags left; 37 static constexpr fmtflags oct; 38 static constexpr fmtflags right; 39 static constexpr fmtflags scientific; 40 static constexpr fmtflags showbase; 41 static constexpr fmtflags showpoint; 42 static constexpr fmtflags showpos; 43 static constexpr fmtflags skipws; 44 static constexpr fmtflags unitbuf; 45 static constexpr fmtflags uppercase; 46 static constexpr fmtflags adjustfield; 47 static constexpr fmtflags basefield; 48 static constexpr fmtflags floatfield; 49 50 typedef T2 iostate; 51 static constexpr iostate badbit; 52 static constexpr iostate eofbit; 53 static constexpr iostate failbit; 54 static constexpr iostate goodbit; 55 56 typedef T3 openmode; 57 static constexpr openmode app; 58 static constexpr openmode ate; 59 static constexpr openmode binary; 60 static constexpr openmode in; 61 static constexpr openmode noreplace; // since C++23 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 106protected: 107 ios_base(); 108}; 109 110template <class charT, class traits = char_traits<charT> > 111class basic_ios 112 : public ios_base 113{ 114public: 115 // types: 116 typedef charT char_type; 117 typedef typename traits::int_type int_type; // removed in C++17 118 typedef typename traits::pos_type pos_type; // removed in C++17 119 typedef typename traits::off_type off_type; // removed in C++17 120 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 159protected: 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: 168ios_base& boolalpha (ios_base& str); 169ios_base& noboolalpha(ios_base& str); 170ios_base& showbase (ios_base& str); 171ios_base& noshowbase (ios_base& str); 172ios_base& showpoint (ios_base& str); 173ios_base& noshowpoint(ios_base& str); 174ios_base& showpos (ios_base& str); 175ios_base& noshowpos (ios_base& str); 176ios_base& skipws (ios_base& str); 177ios_base& noskipws (ios_base& str); 178ios_base& uppercase (ios_base& str); 179ios_base& nouppercase(ios_base& str); 180ios_base& unitbuf (ios_base& str); 181ios_base& nounitbuf (ios_base& str); 182 183// 27.5.5.2 adjustfield: 184ios_base& internal (ios_base& str); 185ios_base& left (ios_base& str); 186ios_base& right (ios_base& str); 187 188// 27.5.5.3 basefield: 189ios_base& dec (ios_base& str); 190ios_base& hex (ios_base& str); 191ios_base& oct (ios_base& str); 192 193// 27.5.5.4 floatfield: 194ios_base& fixed (ios_base& str); 195ios_base& scientific (ios_base& str); 196ios_base& hexfloat (ios_base& str); 197ios_base& defaultfloat(ios_base& str); 198 199// 27.5.5.5 error reporting: 200enum class io_errc 201{ 202 stream = 1 203}; 204 205concept_map ErrorCodeEnum<io_errc> { }; 206error_code make_error_code(io_errc e) noexcept; 207error_condition make_error_condition(io_errc e) noexcept; 208storage-class-specifier const error_category& iostream_category() noexcept; 209 210} // std 211 212*/ 213 214#include <__cxx03/__config> 215 216#if !defined(_LIBCPP_HAS_NO_LOCALIZATION) 217 218# include <__cxx03/__fwd/ios.h> 219# include <__cxx03/__ios/fpos.h> 220# include <__cxx03/__locale> 221# include <__cxx03/__system_error/error_category.h> 222# include <__cxx03/__system_error/error_code.h> 223# include <__cxx03/__system_error/error_condition.h> 224# include <__cxx03/__system_error/system_error.h> 225# include <__cxx03/__utility/swap.h> 226# include <__cxx03/__verbose_abort> 227# include <__cxx03/version> 228 229// standard-mandated includes 230 231// [ios.syn] 232# include <__cxx03/iosfwd> 233 234# if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER) 235# include <__cxx03/__atomic/atomic.h> // for __xindex_ 236# endif 237 238# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 239# pragma GCC system_header 240# endif 241 242_LIBCPP_PUSH_MACROS 243# include <__cxx03/__undef_macros> 244 245_LIBCPP_BEGIN_NAMESPACE_STD 246 247typedef ptrdiff_t streamsize; 248 249class _LIBCPP_EXPORTED_FROM_ABI ios_base { 250public: 251 class _LIBCPP_EXPORTED_FROM_ABI failure; 252 253 typedef unsigned int fmtflags; 254 static const fmtflags boolalpha = 0x0001; 255 static const fmtflags dec = 0x0002; 256 static const fmtflags fixed = 0x0004; 257 static const fmtflags hex = 0x0008; 258 static const fmtflags internal = 0x0010; 259 static const fmtflags left = 0x0020; 260 static const fmtflags oct = 0x0040; 261 static const fmtflags right = 0x0080; 262 static const fmtflags scientific = 0x0100; 263 static const fmtflags showbase = 0x0200; 264 static const fmtflags showpoint = 0x0400; 265 static const fmtflags showpos = 0x0800; 266 static const fmtflags skipws = 0x1000; 267 static const fmtflags unitbuf = 0x2000; 268 static const fmtflags uppercase = 0x4000; 269 static const fmtflags adjustfield = left | right | internal; 270 static const fmtflags basefield = dec | oct | hex; 271 static const fmtflags floatfield = scientific | fixed; 272 273 typedef unsigned int iostate; 274 static const iostate badbit = 0x1; 275 static const iostate eofbit = 0x2; 276 static const iostate failbit = 0x4; 277 static const iostate goodbit = 0x0; 278 279 typedef unsigned int openmode; 280 static const openmode app = 0x01; 281 static const openmode ate = 0x02; 282 static const openmode binary = 0x04; 283 static const openmode in = 0x08; 284 static const openmode out = 0x10; 285 static const openmode trunc = 0x20; 286 287 enum seekdir { beg, cur, end }; 288 289 typedef iostate io_state; 290 typedef openmode open_mode; 291 typedef seekdir seek_dir; 292 293 typedef std::streamoff streamoff; 294 typedef std::streampos streampos; 295 296 class _LIBCPP_EXPORTED_FROM_ABI Init; 297 298 // 27.5.2.2 fmtflags state: 299 _LIBCPP_HIDE_FROM_ABI fmtflags flags() const; 300 _LIBCPP_HIDE_FROM_ABI fmtflags flags(fmtflags __fmtfl); 301 _LIBCPP_HIDE_FROM_ABI fmtflags setf(fmtflags __fmtfl); 302 _LIBCPP_HIDE_FROM_ABI fmtflags setf(fmtflags __fmtfl, fmtflags __mask); 303 _LIBCPP_HIDE_FROM_ABI void unsetf(fmtflags __mask); 304 305 _LIBCPP_HIDE_FROM_ABI streamsize precision() const; 306 _LIBCPP_HIDE_FROM_ABI streamsize precision(streamsize __prec); 307 _LIBCPP_HIDE_FROM_ABI streamsize width() const; 308 _LIBCPP_HIDE_FROM_ABI streamsize width(streamsize __wide); 309 310 // 27.5.2.3 locales: 311 locale imbue(const locale& __loc); 312 locale getloc() const; 313 314 // 27.5.2.5 storage: 315 static int xalloc(); 316 long& iword(int __index); 317 void*& pword(int __index); 318 319 // destructor 320 virtual ~ios_base(); 321 322 // 27.5.2.6 callbacks; 323 enum event { erase_event, imbue_event, copyfmt_event }; 324 typedef void (*event_callback)(event, ios_base&, int __index); 325 void register_callback(event_callback __fn, int __index); 326 327 ios_base(const ios_base&) = delete; 328 ios_base& operator=(const ios_base&) = delete; 329 330 static bool sync_with_stdio(bool __sync = true); 331 332 _LIBCPP_HIDE_FROM_ABI iostate rdstate() const; 333 void clear(iostate __state = goodbit); 334 _LIBCPP_HIDE_FROM_ABI void setstate(iostate __state); 335 336 _LIBCPP_HIDE_FROM_ABI bool good() const; 337 _LIBCPP_HIDE_FROM_ABI bool eof() const; 338 _LIBCPP_HIDE_FROM_ABI bool fail() const; 339 _LIBCPP_HIDE_FROM_ABI bool bad() const; 340 341 _LIBCPP_HIDE_FROM_ABI iostate exceptions() const; 342 _LIBCPP_HIDE_FROM_ABI void exceptions(iostate __iostate); 343 344 void __set_badbit_and_consider_rethrow(); 345 void __set_failbit_and_consider_rethrow(); 346 347 _LIBCPP_HIDE_FROM_ABI void __setstate_nothrow(iostate __state) { 348 if (__rdbuf_) 349 __rdstate_ |= __state; 350 else 351 __rdstate_ |= __state | ios_base::badbit; 352 } 353 354protected: 355 _LIBCPP_HIDE_FROM_ABI ios_base() : __loc_(nullptr) { 356 // Purposefully does no initialization 357 // 358 // Except for the locale, this is a sentinel to avoid destroying 359 // an uninitialized object. See 360 // test/libcxx/input.output/iostreams.base/ios.base/ios.base.cons/dtor.uninitialized.pass.cpp 361 // for the details. 362 } 363 364 void init(void* __sb); 365 _LIBCPP_HIDE_FROM_ABI void* rdbuf() const { return __rdbuf_; } 366 367 _LIBCPP_HIDE_FROM_ABI void rdbuf(void* __sb) { 368 __rdbuf_ = __sb; 369 clear(); 370 } 371 372 void __call_callbacks(event); 373 void copyfmt(const ios_base&); 374 void move(ios_base&); 375 void swap(ios_base&) _NOEXCEPT; 376 377 _LIBCPP_HIDE_FROM_ABI void set_rdbuf(void* __sb) { __rdbuf_ = __sb; } 378 379private: 380 // All data members must be scalars 381 fmtflags __fmtflags_; 382 streamsize __precision_; 383 streamsize __width_; 384 iostate __rdstate_; 385 iostate __exceptions_; 386 void* __rdbuf_; 387 void* __loc_; 388 event_callback* __fn_; 389 int* __index_; 390 size_t __event_size_; 391 size_t __event_cap_; 392// TODO(EricWF): Enable this for both Clang and GCC. Currently it is only 393// enabled with clang. 394# if defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_NO_THREADS) 395 static atomic<int> __xindex_; 396# else 397 static int __xindex_; 398# endif 399 long* __iarray_; 400 size_t __iarray_size_; 401 size_t __iarray_cap_; 402 void** __parray_; 403 size_t __parray_size_; 404 size_t __parray_cap_; 405}; 406 407// enum class io_errc 408_LIBCPP_DECLARE_STRONG_ENUM(io_errc){stream = 1}; 409_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc) 410 411template <> 412struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc> : public true_type {}; 413 414template <> 415struct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc::__lx> : public true_type {}; 416 417_LIBCPP_EXPORTED_FROM_ABI const error_category& iostream_category() _NOEXCEPT; 418 419inline _LIBCPP_HIDE_FROM_ABI error_code make_error_code(io_errc __e) _NOEXCEPT { 420 return error_code(static_cast<int>(__e), iostream_category()); 421} 422 423inline _LIBCPP_HIDE_FROM_ABI error_condition make_error_condition(io_errc __e) _NOEXCEPT { 424 return error_condition(static_cast<int>(__e), iostream_category()); 425} 426 427class _LIBCPP_EXPORTED_FROM_ABI ios_base::failure : public system_error { 428public: 429 explicit failure(const string& __msg, const error_code& __ec = io_errc::stream); 430 explicit failure(const char* __msg, const error_code& __ec = io_errc::stream); 431 _LIBCPP_HIDE_FROM_ABI failure(const failure&) _NOEXCEPT = default; 432 ~failure() _NOEXCEPT override; 433}; 434 435_LIBCPP_NORETURN inline _LIBCPP_HIDE_FROM_ABI void __throw_failure(char const* __msg) { 436# ifndef _LIBCPP_HAS_NO_EXCEPTIONS 437 throw ios_base::failure(__msg); 438# else 439 _LIBCPP_VERBOSE_ABORT("ios_base::failure was thrown in -fno-exceptions mode with message \"%s\"", __msg); 440# endif 441} 442 443class _LIBCPP_EXPORTED_FROM_ABI ios_base::Init { 444public: 445 Init(); 446 ~Init(); 447}; 448 449// fmtflags 450 451inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::flags() const { return __fmtflags_; } 452 453inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::flags(fmtflags __fmtfl) { 454 fmtflags __r = __fmtflags_; 455 __fmtflags_ = __fmtfl; 456 return __r; 457} 458 459inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::setf(fmtflags __fmtfl) { 460 fmtflags __r = __fmtflags_; 461 __fmtflags_ |= __fmtfl; 462 return __r; 463} 464 465inline _LIBCPP_HIDE_FROM_ABI void ios_base::unsetf(fmtflags __mask) { __fmtflags_ &= ~__mask; } 466 467inline _LIBCPP_HIDE_FROM_ABI ios_base::fmtflags ios_base::setf(fmtflags __fmtfl, fmtflags __mask) { 468 fmtflags __r = __fmtflags_; 469 unsetf(__mask); 470 __fmtflags_ |= __fmtfl & __mask; 471 return __r; 472} 473 474// precision 475 476inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::precision() const { return __precision_; } 477 478inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::precision(streamsize __prec) { 479 streamsize __r = __precision_; 480 __precision_ = __prec; 481 return __r; 482} 483 484// width 485 486inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::width() const { return __width_; } 487 488inline _LIBCPP_HIDE_FROM_ABI streamsize ios_base::width(streamsize __wide) { 489 streamsize __r = __width_; 490 __width_ = __wide; 491 return __r; 492} 493 494// iostate 495 496inline _LIBCPP_HIDE_FROM_ABI ios_base::iostate ios_base::rdstate() const { return __rdstate_; } 497 498inline _LIBCPP_HIDE_FROM_ABI void ios_base::setstate(iostate __state) { clear(__rdstate_ | __state); } 499 500inline _LIBCPP_HIDE_FROM_ABI bool ios_base::good() const { return __rdstate_ == 0; } 501 502inline _LIBCPP_HIDE_FROM_ABI bool ios_base::eof() const { return (__rdstate_ & eofbit) != 0; } 503 504inline _LIBCPP_HIDE_FROM_ABI bool ios_base::fail() const { return (__rdstate_ & (failbit | badbit)) != 0; } 505 506inline _LIBCPP_HIDE_FROM_ABI bool ios_base::bad() const { return (__rdstate_ & badbit) != 0; } 507 508inline _LIBCPP_HIDE_FROM_ABI ios_base::iostate ios_base::exceptions() const { return __exceptions_; } 509 510inline _LIBCPP_HIDE_FROM_ABI void ios_base::exceptions(iostate __iostate) { 511 __exceptions_ = __iostate; 512 clear(__rdstate_); 513} 514 515template <class _Traits> 516// Attribute 'packed' is used to keep the layout compatible with the previous 517// definition of the '__fill_' and '_set_' pair in basic_ios on AIX & z/OS. 518struct _LIBCPP_PACKED _FillHelper { 519 _LIBCPP_HIDE_FROM_ABI void __init() { __set_ = false; } 520 _LIBCPP_HIDE_FROM_ABI _FillHelper& operator=(typename _Traits::int_type __x) { 521 __set_ = true; 522 __fill_val_ = __x; 523 return *this; 524 } 525 _LIBCPP_HIDE_FROM_ABI bool __is_set() const { return __set_; } 526 _LIBCPP_HIDE_FROM_ABI typename _Traits::int_type __get() const { return __fill_val_; } 527 528private: 529 typename _Traits::int_type __fill_val_; 530 bool __set_; 531}; 532 533template <class _Traits> 534struct _LIBCPP_PACKED _SentinelValueFill { 535 _LIBCPP_HIDE_FROM_ABI void __init() { __fill_val_ = _Traits::eof(); } 536 _LIBCPP_HIDE_FROM_ABI _SentinelValueFill& operator=(typename _Traits::int_type __x) { 537 __fill_val_ = __x; 538 return *this; 539 } 540 _LIBCPP_HIDE_FROM_ABI bool __is_set() const { return __fill_val_ != _Traits::eof(); } 541 _LIBCPP_HIDE_FROM_ABI typename _Traits::int_type __get() const { return __fill_val_; } 542 543private: 544 typename _Traits::int_type __fill_val_; 545}; 546 547template <class _CharT, class _Traits> 548class _LIBCPP_TEMPLATE_VIS basic_ios : public ios_base { 549public: 550 // types: 551 typedef _CharT char_type; 552 typedef _Traits traits_type; 553 554 typedef typename traits_type::int_type int_type; 555 typedef typename traits_type::pos_type pos_type; 556 typedef typename traits_type::off_type off_type; 557 558 static_assert(is_same<_CharT, typename traits_type::char_type>::value, 559 "traits_type::char_type must be the same type as CharT"); 560 561 // Preserve the ability to compare with literal 0, 562 // and implicitly convert to bool, but not implicitly convert to int. 563 _LIBCPP_HIDE_FROM_ABI operator void*() const { return fail() ? nullptr : (void*)this; } 564 565 _LIBCPP_HIDE_FROM_ABI bool operator!() const { return fail(); } 566 _LIBCPP_HIDE_FROM_ABI iostate rdstate() const { return ios_base::rdstate(); } 567 _LIBCPP_HIDE_FROM_ABI void clear(iostate __state = goodbit) { ios_base::clear(__state); } 568 _LIBCPP_HIDE_FROM_ABI void setstate(iostate __state) { ios_base::setstate(__state); } 569 _LIBCPP_HIDE_FROM_ABI bool good() const { return ios_base::good(); } 570 _LIBCPP_HIDE_FROM_ABI bool eof() const { return ios_base::eof(); } 571 _LIBCPP_HIDE_FROM_ABI bool fail() const { return ios_base::fail(); } 572 _LIBCPP_HIDE_FROM_ABI bool bad() const { return ios_base::bad(); } 573 574 _LIBCPP_HIDE_FROM_ABI iostate exceptions() const { return ios_base::exceptions(); } 575 _LIBCPP_HIDE_FROM_ABI void exceptions(iostate __iostate) { ios_base::exceptions(__iostate); } 576 577 // 27.5.4.1 Constructor/destructor: 578 _LIBCPP_HIDE_FROM_ABI explicit basic_ios(basic_streambuf<char_type, traits_type>* __sb); 579 ~basic_ios() override; 580 581 // 27.5.4.2 Members: 582 _LIBCPP_HIDE_FROM_ABI basic_ostream<char_type, traits_type>* tie() const; 583 _LIBCPP_HIDE_FROM_ABI basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr); 584 585 _LIBCPP_HIDE_FROM_ABI basic_streambuf<char_type, traits_type>* rdbuf() const; 586 _LIBCPP_HIDE_FROM_ABI basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb); 587 588 basic_ios& copyfmt(const basic_ios& __rhs); 589 590 _LIBCPP_HIDE_FROM_ABI char_type fill() const; 591 _LIBCPP_HIDE_FROM_ABI char_type fill(char_type __ch); 592 593 _LIBCPP_HIDE_FROM_ABI locale imbue(const locale& __loc); 594 595 _LIBCPP_HIDE_FROM_ABI char narrow(char_type __c, char __dfault) const; 596 _LIBCPP_HIDE_FROM_ABI char_type widen(char __c) const; 597 598protected: 599 _LIBCPP_HIDE_FROM_ABI basic_ios() { 600 // purposefully does no initialization 601 // since the destructor does nothing this does not have ios_base issues. 602 } 603 _LIBCPP_HIDE_FROM_ABI void init(basic_streambuf<char_type, traits_type>* __sb); 604 605 _LIBCPP_HIDE_FROM_ABI void move(basic_ios& __rhs); 606 _LIBCPP_HIDE_FROM_ABI void move(basic_ios&& __rhs) { move(__rhs); } 607 _LIBCPP_HIDE_FROM_ABI void swap(basic_ios& __rhs) _NOEXCEPT; 608 _LIBCPP_HIDE_FROM_ABI void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb); 609 610private: 611 basic_ostream<char_type, traits_type>* __tie_; 612 613# if defined(_LIBCPP_ABI_IOS_ALLOW_ARBITRARY_FILL_VALUE) 614 using _FillType = _FillHelper<traits_type>; 615# else 616 using _FillType = _SentinelValueFill<traits_type>; 617# endif 618 mutable _FillType __fill_; 619}; 620 621template <class _CharT, class _Traits> 622inline _LIBCPP_HIDE_FROM_ABI basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type, traits_type>* __sb) { 623 init(__sb); 624} 625 626template <class _CharT, class _Traits> 627basic_ios<_CharT, _Traits>::~basic_ios() {} 628 629template <class _CharT, class _Traits> 630inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb) { 631 ios_base::init(__sb); 632 __tie_ = nullptr; 633 __fill_.__init(); 634} 635 636template <class _CharT, class _Traits> 637inline _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>* basic_ios<_CharT, _Traits>::tie() const { 638 return __tie_; 639} 640 641template <class _CharT, class _Traits> 642inline _LIBCPP_HIDE_FROM_ABI basic_ostream<_CharT, _Traits>* 643basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr) { 644 basic_ostream<char_type, traits_type>* __r = __tie_; 645 __tie_ = __tiestr; 646 return __r; 647} 648 649template <class _CharT, class _Traits> 650inline _LIBCPP_HIDE_FROM_ABI basic_streambuf<_CharT, _Traits>* basic_ios<_CharT, _Traits>::rdbuf() const { 651 return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf()); 652} 653 654template <class _CharT, class _Traits> 655inline _LIBCPP_HIDE_FROM_ABI basic_streambuf<_CharT, _Traits>* 656basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb) { 657 basic_streambuf<char_type, traits_type>* __r = rdbuf(); 658 ios_base::rdbuf(__sb); 659 return __r; 660} 661 662template <class _CharT, class _Traits> 663inline _LIBCPP_HIDE_FROM_ABI locale basic_ios<_CharT, _Traits>::imbue(const locale& __loc) { 664 locale __r = getloc(); 665 ios_base::imbue(__loc); 666 if (rdbuf()) 667 rdbuf()->pubimbue(__loc); 668 return __r; 669} 670 671template <class _CharT, class _Traits> 672inline _LIBCPP_HIDE_FROM_ABI char basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const { 673 return std::use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault); 674} 675 676template <class _CharT, class _Traits> 677inline _LIBCPP_HIDE_FROM_ABI _CharT basic_ios<_CharT, _Traits>::widen(char __c) const { 678 return std::use_facet<ctype<char_type> >(getloc()).widen(__c); 679} 680 681template <class _CharT, class _Traits> 682inline _LIBCPP_HIDE_FROM_ABI _CharT basic_ios<_CharT, _Traits>::fill() const { 683 if (!__fill_.__is_set()) 684 __fill_ = widen(' '); 685 return __fill_.__get(); 686} 687 688template <class _CharT, class _Traits> 689inline _LIBCPP_HIDE_FROM_ABI _CharT basic_ios<_CharT, _Traits>::fill(char_type __ch) { 690 if (!__fill_.__is_set()) 691 __fill_ = widen(' '); 692 char_type __r = __fill_.__get(); 693 __fill_ = __ch; 694 return __r; 695} 696 697template <class _CharT, class _Traits> 698basic_ios<_CharT, _Traits>& basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs) { 699 if (this != &__rhs) { 700 __call_callbacks(erase_event); 701 ios_base::copyfmt(__rhs); 702 __tie_ = __rhs.__tie_; 703 __fill_ = __rhs.__fill_; 704 __call_callbacks(copyfmt_event); 705 exceptions(__rhs.exceptions()); 706 } 707 return *this; 708} 709 710template <class _CharT, class _Traits> 711inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::move(basic_ios& __rhs) { 712 ios_base::move(__rhs); 713 __tie_ = __rhs.__tie_; 714 __rhs.__tie_ = nullptr; 715 __fill_ = __rhs.__fill_; 716} 717 718template <class _CharT, class _Traits> 719inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT { 720 ios_base::swap(__rhs); 721 std::swap(__tie_, __rhs.__tie_); 722 std::swap(__fill_, __rhs.__fill_); 723} 724 725template <class _CharT, class _Traits> 726inline _LIBCPP_HIDE_FROM_ABI void basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb) { 727 ios_base::set_rdbuf(__sb); 728} 729 730extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ios<char>; 731 732# ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS 733extern template class _LIBCPP_EXTERN_TEMPLATE_TYPE_VIS basic_ios<wchar_t>; 734# endif 735 736_LIBCPP_HIDE_FROM_ABI inline ios_base& boolalpha(ios_base& __str) { 737 __str.setf(ios_base::boolalpha); 738 return __str; 739} 740 741_LIBCPP_HIDE_FROM_ABI inline ios_base& noboolalpha(ios_base& __str) { 742 __str.unsetf(ios_base::boolalpha); 743 return __str; 744} 745 746_LIBCPP_HIDE_FROM_ABI inline ios_base& showbase(ios_base& __str) { 747 __str.setf(ios_base::showbase); 748 return __str; 749} 750 751_LIBCPP_HIDE_FROM_ABI inline ios_base& noshowbase(ios_base& __str) { 752 __str.unsetf(ios_base::showbase); 753 return __str; 754} 755 756_LIBCPP_HIDE_FROM_ABI inline ios_base& showpoint(ios_base& __str) { 757 __str.setf(ios_base::showpoint); 758 return __str; 759} 760 761_LIBCPP_HIDE_FROM_ABI inline ios_base& noshowpoint(ios_base& __str) { 762 __str.unsetf(ios_base::showpoint); 763 return __str; 764} 765 766_LIBCPP_HIDE_FROM_ABI inline ios_base& showpos(ios_base& __str) { 767 __str.setf(ios_base::showpos); 768 return __str; 769} 770 771_LIBCPP_HIDE_FROM_ABI inline ios_base& noshowpos(ios_base& __str) { 772 __str.unsetf(ios_base::showpos); 773 return __str; 774} 775 776_LIBCPP_HIDE_FROM_ABI inline ios_base& skipws(ios_base& __str) { 777 __str.setf(ios_base::skipws); 778 return __str; 779} 780 781_LIBCPP_HIDE_FROM_ABI inline ios_base& noskipws(ios_base& __str) { 782 __str.unsetf(ios_base::skipws); 783 return __str; 784} 785 786_LIBCPP_HIDE_FROM_ABI inline ios_base& uppercase(ios_base& __str) { 787 __str.setf(ios_base::uppercase); 788 return __str; 789} 790 791_LIBCPP_HIDE_FROM_ABI inline ios_base& nouppercase(ios_base& __str) { 792 __str.unsetf(ios_base::uppercase); 793 return __str; 794} 795 796_LIBCPP_HIDE_FROM_ABI inline ios_base& unitbuf(ios_base& __str) { 797 __str.setf(ios_base::unitbuf); 798 return __str; 799} 800 801_LIBCPP_HIDE_FROM_ABI inline ios_base& nounitbuf(ios_base& __str) { 802 __str.unsetf(ios_base::unitbuf); 803 return __str; 804} 805 806_LIBCPP_HIDE_FROM_ABI inline ios_base& internal(ios_base& __str) { 807 __str.setf(ios_base::internal, ios_base::adjustfield); 808 return __str; 809} 810 811_LIBCPP_HIDE_FROM_ABI inline ios_base& left(ios_base& __str) { 812 __str.setf(ios_base::left, ios_base::adjustfield); 813 return __str; 814} 815 816_LIBCPP_HIDE_FROM_ABI inline ios_base& right(ios_base& __str) { 817 __str.setf(ios_base::right, ios_base::adjustfield); 818 return __str; 819} 820 821_LIBCPP_HIDE_FROM_ABI inline ios_base& dec(ios_base& __str) { 822 __str.setf(ios_base::dec, ios_base::basefield); 823 return __str; 824} 825 826_LIBCPP_HIDE_FROM_ABI inline ios_base& hex(ios_base& __str) { 827 __str.setf(ios_base::hex, ios_base::basefield); 828 return __str; 829} 830 831_LIBCPP_HIDE_FROM_ABI inline ios_base& oct(ios_base& __str) { 832 __str.setf(ios_base::oct, ios_base::basefield); 833 return __str; 834} 835 836_LIBCPP_HIDE_FROM_ABI inline ios_base& fixed(ios_base& __str) { 837 __str.setf(ios_base::fixed, ios_base::floatfield); 838 return __str; 839} 840 841_LIBCPP_HIDE_FROM_ABI inline ios_base& scientific(ios_base& __str) { 842 __str.setf(ios_base::scientific, ios_base::floatfield); 843 return __str; 844} 845 846_LIBCPP_HIDE_FROM_ABI inline ios_base& hexfloat(ios_base& __str) { 847 __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield); 848 return __str; 849} 850 851_LIBCPP_HIDE_FROM_ABI inline ios_base& defaultfloat(ios_base& __str) { 852 __str.unsetf(ios_base::floatfield); 853 return __str; 854} 855 856_LIBCPP_END_NAMESPACE_STD 857 858_LIBCPP_POP_MACROS 859 860#endif // !defined(_LIBCPP_HAS_NO_LOCALIZATION) 861 862#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) 863# include <__cxx03/atomic> 864# include <__cxx03/cstddef> 865# include <__cxx03/cstdlib> 866# include <__cxx03/cstring> 867# include <__cxx03/limits> 868# include <__cxx03/mutex> 869# include <__cxx03/new> 870# include <__cxx03/stdexcept> 871# include <__cxx03/system_error> 872# include <__cxx03/type_traits> 873# include <__cxx03/typeinfo> 874#endif 875 876#endif // _LIBCPP___CXX03_IOS 877