2 //===---------------------------- ios -------------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
22 typedef OFF_T streamoff;
23 typedef SZ_T streamsize;
24 template <class stateT> class fpos;
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;
52 static constexpr iostate badbit;
53 static constexpr iostate eofbit;
54 static constexpr iostate failbit;
55 static constexpr iostate goodbit;
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;
66 static constexpr seekdir beg;
67 static constexpr seekdir cur;
68 static constexpr seekdir end;
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);
79 streamsize precision() const;
80 streamsize precision(streamsize prec);
81 streamsize width() const;
82 streamsize width(streamsize wide);
85 locale imbue(const locale& loc);
86 locale getloc() const;
90 long& iword(int index);
91 void*& pword(int index);
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);
101 ios_base(const ios_base&) = delete;
102 ios_base& operator=(const ios_base&) = delete;
104 static bool sync_with_stdio(bool sync = true);
110 template <class charT, class traits = char_traits<charT> >
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;
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);
132 iostate exceptions() const;
133 void exceptions(iostate except);
135 // 27.5.4.1 Constructor/destructor:
136 explicit basic_ios(basic_streambuf<charT,traits>* sb);
137 virtual ~basic_ios();
140 basic_ostream<charT,traits>* tie() const;
141 basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr);
143 basic_streambuf<charT,traits>* rdbuf() const;
144 basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
146 basic_ios& copyfmt(const basic_ios& rhs);
148 char_type fill() const;
149 char_type fill(char_type ch);
151 locale imbue(const locale& loc);
153 char narrow(char_type c, char dfault) const;
154 char_type widen(char c) const;
156 basic_ios(const basic_ios& ) = delete;
157 basic_ios& operator=(const basic_ios&) = delete;
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);
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);
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);
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);
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);
199 // 27.5.5.5 error reporting:
205 concept_map ErrorCodeEnum<io_errc> { };
206 error_code make_error_code(io_errc e) noexcept;
207 error_condition make_error_condition(io_errc e) noexcept;
208 storage-class-specifier const error_category& iostream_category() noexcept;
217 #include <system_error>
219 #if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER)
220 #include <atomic> // for __xindex_
223 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
224 #pragma GCC system_header
227 _LIBCPP_BEGIN_NAMESPACE_STD
229 typedef ptrdiff_t streamsize;
231 class _LIBCPP_TYPE_VIS ios_base
234 class _LIBCPP_TYPE_VIS failure;
236 typedef unsigned int fmtflags;
237 static const fmtflags boolalpha = 0x0001;
238 static const fmtflags dec = 0x0002;
239 static const fmtflags fixed = 0x0004;
240 static const fmtflags hex = 0x0008;
241 static const fmtflags internal = 0x0010;
242 static const fmtflags left = 0x0020;
243 static const fmtflags oct = 0x0040;
244 static const fmtflags right = 0x0080;
245 static const fmtflags scientific = 0x0100;
246 static const fmtflags showbase = 0x0200;
247 static const fmtflags showpoint = 0x0400;
248 static const fmtflags showpos = 0x0800;
249 static const fmtflags skipws = 0x1000;
250 static const fmtflags unitbuf = 0x2000;
251 static const fmtflags uppercase = 0x4000;
252 static const fmtflags adjustfield = left | right | internal;
253 static const fmtflags basefield = dec | oct | hex;
254 static const fmtflags floatfield = scientific | fixed;
256 typedef unsigned int iostate;
257 typedef iostate io_state;
258 static const iostate badbit = 0x1;
259 static const iostate eofbit = 0x2;
260 static const iostate failbit = 0x4;
261 static const iostate goodbit = 0x0;
263 typedef unsigned int openmode;
264 typedef openmode open_mode;
265 static const openmode app = 0x01;
266 static const openmode ate = 0x02;
267 static const openmode binary = 0x04;
268 static const openmode in = 0x08;
269 static const openmode out = 0x10;
270 static const openmode trunc = 0x20;
272 enum seekdir {beg, cur, end};
273 typedef seekdir seek_dir;
275 typedef _VSTD::streamoff streamoff;
276 typedef _VSTD::streampos streampos;
278 class _LIBCPP_TYPE_VIS Init;
280 // 27.5.2.2 fmtflags state:
281 _LIBCPP_INLINE_VISIBILITY fmtflags flags() const;
282 _LIBCPP_INLINE_VISIBILITY fmtflags flags(fmtflags __fmtfl);
283 _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl);
284 _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl, fmtflags __mask);
285 _LIBCPP_INLINE_VISIBILITY void unsetf(fmtflags __mask);
287 _LIBCPP_INLINE_VISIBILITY streamsize precision() const;
288 _LIBCPP_INLINE_VISIBILITY streamsize precision(streamsize __prec);
289 _LIBCPP_INLINE_VISIBILITY streamsize width() const;
290 _LIBCPP_INLINE_VISIBILITY streamsize width(streamsize __wide);
293 locale imbue(const locale& __loc);
294 locale getloc() const;
298 long& iword(int __index);
299 void*& pword(int __index);
304 // 27.5.2.6 callbacks;
305 enum event { erase_event, imbue_event, copyfmt_event };
306 typedef void (*event_callback)(event, ios_base&, int __index);
307 void register_callback(event_callback __fn, int __index);
310 ios_base(const ios_base&); // = delete;
311 ios_base& operator=(const ios_base&); // = delete;
314 static bool sync_with_stdio(bool __sync = true);
316 _LIBCPP_INLINE_VISIBILITY iostate rdstate() const;
317 void clear(iostate __state = goodbit);
318 _LIBCPP_INLINE_VISIBILITY void setstate(iostate __state);
320 _LIBCPP_INLINE_VISIBILITY bool good() const;
321 _LIBCPP_INLINE_VISIBILITY bool eof() const;
322 _LIBCPP_INLINE_VISIBILITY bool fail() const;
323 _LIBCPP_INLINE_VISIBILITY bool bad() const;
325 _LIBCPP_INLINE_VISIBILITY iostate exceptions() const;
326 _LIBCPP_INLINE_VISIBILITY void exceptions(iostate __iostate);
328 void __set_badbit_and_consider_rethrow();
329 void __set_failbit_and_consider_rethrow();
332 _LIBCPP_INLINE_VISIBILITY
333 ios_base() {// purposefully does no initialization
336 void init(void* __sb);
337 _LIBCPP_ALWAYS_INLINE void* rdbuf() const {return __rdbuf_;}
339 _LIBCPP_ALWAYS_INLINE
340 void rdbuf(void* __sb)
346 void __call_callbacks(event);
347 void copyfmt(const ios_base&);
348 void move(ios_base&);
349 void swap(ios_base&) _NOEXCEPT;
351 _LIBCPP_ALWAYS_INLINE
352 void set_rdbuf(void* __sb)
358 // All data members must be scalars
359 fmtflags __fmtflags_;
360 streamsize __precision_;
363 iostate __exceptions_;
366 event_callback* __fn_;
368 size_t __event_size_;
370 // TODO(EricWF): Enable this for both Clang and GCC. Currently it is only
371 // enabled with clang.
372 #if defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_NO_THREADS)
373 static atomic<int> __xindex_;
375 static int __xindex_;
378 size_t __iarray_size_;
379 size_t __iarray_cap_;
381 size_t __parray_size_;
382 size_t __parray_cap_;
386 _LIBCPP_DECLARE_STRONG_ENUM(io_errc)
390 _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc)
393 struct _LIBCPP_TYPE_VIS_ONLY is_error_code_enum<io_errc> : public true_type { };
395 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
397 struct _LIBCPP_TYPE_VIS_ONLY is_error_code_enum<io_errc::__lx> : public true_type { };
401 const error_category& iostream_category() _NOEXCEPT;
403 inline _LIBCPP_INLINE_VISIBILITY
405 make_error_code(io_errc __e) _NOEXCEPT
407 return error_code(static_cast<int>(__e), iostream_category());
410 inline _LIBCPP_INLINE_VISIBILITY
412 make_error_condition(io_errc __e) _NOEXCEPT
414 return error_condition(static_cast<int>(__e), iostream_category());
417 class _LIBCPP_EXCEPTION_ABI ios_base::failure
418 : public system_error
421 explicit failure(const string& __msg, const error_code& __ec = io_errc::stream);
422 explicit failure(const char* __msg, const error_code& __ec = io_errc::stream);
423 virtual ~failure() throw();
426 class _LIBCPP_TYPE_VIS ios_base::Init
435 inline _LIBCPP_INLINE_VISIBILITY
437 ios_base::flags() const
442 inline _LIBCPP_INLINE_VISIBILITY
444 ios_base::flags(fmtflags __fmtfl)
446 fmtflags __r = __fmtflags_;
447 __fmtflags_ = __fmtfl;
451 inline _LIBCPP_INLINE_VISIBILITY
453 ios_base::setf(fmtflags __fmtfl)
455 fmtflags __r = __fmtflags_;
456 __fmtflags_ |= __fmtfl;
460 inline _LIBCPP_INLINE_VISIBILITY
462 ios_base::unsetf(fmtflags __mask)
464 __fmtflags_ &= ~__mask;
467 inline _LIBCPP_INLINE_VISIBILITY
469 ios_base::setf(fmtflags __fmtfl, fmtflags __mask)
471 fmtflags __r = __fmtflags_;
473 __fmtflags_ |= __fmtfl & __mask;
479 inline _LIBCPP_INLINE_VISIBILITY
481 ios_base::precision() const
486 inline _LIBCPP_INLINE_VISIBILITY
488 ios_base::precision(streamsize __prec)
490 streamsize __r = __precision_;
491 __precision_ = __prec;
497 inline _LIBCPP_INLINE_VISIBILITY
499 ios_base::width() const
504 inline _LIBCPP_INLINE_VISIBILITY
506 ios_base::width(streamsize __wide)
508 streamsize __r = __width_;
515 inline _LIBCPP_INLINE_VISIBILITY
517 ios_base::rdstate() const
522 inline _LIBCPP_INLINE_VISIBILITY
524 ios_base::setstate(iostate __state)
526 clear(__rdstate_ | __state);
529 inline _LIBCPP_INLINE_VISIBILITY
531 ios_base::good() const
533 return __rdstate_ == 0;
536 inline _LIBCPP_INLINE_VISIBILITY
538 ios_base::eof() const
540 return (__rdstate_ & eofbit) != 0;
543 inline _LIBCPP_INLINE_VISIBILITY
545 ios_base::fail() const
547 return (__rdstate_ & (failbit | badbit)) != 0;
550 inline _LIBCPP_INLINE_VISIBILITY
552 ios_base::bad() const
554 return (__rdstate_ & badbit) != 0;
557 inline _LIBCPP_INLINE_VISIBILITY
559 ios_base::exceptions() const
561 return __exceptions_;
564 inline _LIBCPP_INLINE_VISIBILITY
566 ios_base::exceptions(iostate __iostate)
568 __exceptions_ = __iostate;
572 template <class _CharT, class _Traits>
573 class _LIBCPP_TYPE_VIS_ONLY basic_ios
578 typedef _CharT char_type;
579 typedef _Traits traits_type;
581 typedef typename traits_type::int_type int_type;
582 typedef typename traits_type::pos_type pos_type;
583 typedef typename traits_type::off_type off_type;
585 _LIBCPP_ALWAYS_INLINE
587 operator bool() const {return !fail();}
588 _LIBCPP_ALWAYS_INLINE bool operator!() const {return fail();}
589 _LIBCPP_ALWAYS_INLINE iostate rdstate() const {return ios_base::rdstate();}
590 _LIBCPP_ALWAYS_INLINE void clear(iostate __state = goodbit) {ios_base::clear(__state);}
591 _LIBCPP_ALWAYS_INLINE void setstate(iostate __state) {ios_base::setstate(__state);}
592 _LIBCPP_ALWAYS_INLINE bool good() const {return ios_base::good();}
593 _LIBCPP_ALWAYS_INLINE bool eof() const {return ios_base::eof();}
594 _LIBCPP_ALWAYS_INLINE bool fail() const {return ios_base::fail();}
595 _LIBCPP_ALWAYS_INLINE bool bad() const {return ios_base::bad();}
597 _LIBCPP_ALWAYS_INLINE iostate exceptions() const {return ios_base::exceptions();}
598 _LIBCPP_ALWAYS_INLINE void exceptions(iostate __iostate) {ios_base::exceptions(__iostate);}
600 // 27.5.4.1 Constructor/destructor:
601 _LIBCPP_INLINE_VISIBILITY
602 explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb);
603 virtual ~basic_ios();
606 _LIBCPP_INLINE_VISIBILITY
607 basic_ostream<char_type, traits_type>* tie() const;
608 _LIBCPP_INLINE_VISIBILITY
609 basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
611 _LIBCPP_INLINE_VISIBILITY
612 basic_streambuf<char_type, traits_type>* rdbuf() const;
613 _LIBCPP_INLINE_VISIBILITY
614 basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
616 basic_ios& copyfmt(const basic_ios& __rhs);
618 _LIBCPP_INLINE_VISIBILITY
619 char_type fill() const;
620 _LIBCPP_INLINE_VISIBILITY
621 char_type fill(char_type __ch);
623 _LIBCPP_INLINE_VISIBILITY
624 locale imbue(const locale& __loc);
626 _LIBCPP_INLINE_VISIBILITY
627 char narrow(char_type __c, char __dfault) const;
628 _LIBCPP_INLINE_VISIBILITY
629 char_type widen(char __c) const;
632 _LIBCPP_ALWAYS_INLINE
633 basic_ios() {// purposefully does no initialization
635 _LIBCPP_INLINE_VISIBILITY
636 void init(basic_streambuf<char_type, traits_type>* __sb);
638 _LIBCPP_INLINE_VISIBILITY
639 void move(basic_ios& __rhs);
640 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
641 _LIBCPP_ALWAYS_INLINE
642 void move(basic_ios&& __rhs) {move(__rhs);}
644 _LIBCPP_INLINE_VISIBILITY
645 void swap(basic_ios& __rhs) _NOEXCEPT;
646 _LIBCPP_INLINE_VISIBILITY
647 void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
649 basic_ostream<char_type, traits_type>* __tie_;
650 mutable int_type __fill_;
653 template <class _CharT, class _Traits>
654 inline _LIBCPP_INLINE_VISIBILITY
655 basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb)
660 template <class _CharT, class _Traits>
661 basic_ios<_CharT, _Traits>::~basic_ios()
665 template <class _CharT, class _Traits>
666 inline _LIBCPP_INLINE_VISIBILITY
668 basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb)
670 ios_base::init(__sb);
672 __fill_ = traits_type::eof();
675 template <class _CharT, class _Traits>
676 inline _LIBCPP_INLINE_VISIBILITY
677 basic_ostream<_CharT, _Traits>*
678 basic_ios<_CharT, _Traits>::tie() const
683 template <class _CharT, class _Traits>
684 inline _LIBCPP_INLINE_VISIBILITY
685 basic_ostream<_CharT, _Traits>*
686 basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr)
688 basic_ostream<char_type, traits_type>* __r = __tie_;
693 template <class _CharT, class _Traits>
694 inline _LIBCPP_INLINE_VISIBILITY
695 basic_streambuf<_CharT, _Traits>*
696 basic_ios<_CharT, _Traits>::rdbuf() const
698 return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());
701 template <class _CharT, class _Traits>
702 inline _LIBCPP_INLINE_VISIBILITY
703 basic_streambuf<_CharT, _Traits>*
704 basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb)
706 basic_streambuf<char_type, traits_type>* __r = rdbuf();
707 ios_base::rdbuf(__sb);
711 template <class _CharT, class _Traits>
712 inline _LIBCPP_INLINE_VISIBILITY
714 basic_ios<_CharT, _Traits>::imbue(const locale& __loc)
716 locale __r = getloc();
717 ios_base::imbue(__loc);
719 rdbuf()->pubimbue(__loc);
723 template <class _CharT, class _Traits>
724 inline _LIBCPP_INLINE_VISIBILITY
726 basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const
728 return use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);
731 template <class _CharT, class _Traits>
732 inline _LIBCPP_INLINE_VISIBILITY
734 basic_ios<_CharT, _Traits>::widen(char __c) const
736 return use_facet<ctype<char_type> >(getloc()).widen(__c);
739 template <class _CharT, class _Traits>
740 inline _LIBCPP_INLINE_VISIBILITY
742 basic_ios<_CharT, _Traits>::fill() const
744 if (traits_type::eq_int_type(traits_type::eof(), __fill_))
745 __fill_ = widen(' ');
749 template <class _CharT, class _Traits>
750 inline _LIBCPP_INLINE_VISIBILITY
752 basic_ios<_CharT, _Traits>::fill(char_type __ch)
754 char_type __r = __fill_;
759 template <class _CharT, class _Traits>
760 basic_ios<_CharT, _Traits>&
761 basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs)
765 __call_callbacks(erase_event);
766 ios_base::copyfmt(__rhs);
767 __tie_ = __rhs.__tie_;
768 __fill_ = __rhs.__fill_;
769 __call_callbacks(copyfmt_event);
770 exceptions(__rhs.exceptions());
775 template <class _CharT, class _Traits>
776 inline _LIBCPP_INLINE_VISIBILITY
778 basic_ios<_CharT, _Traits>::move(basic_ios& __rhs)
780 ios_base::move(__rhs);
781 __tie_ = __rhs.__tie_;
783 __fill_ = __rhs.__fill_;
786 template <class _CharT, class _Traits>
787 inline _LIBCPP_INLINE_VISIBILITY
789 basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT
791 ios_base::swap(__rhs);
792 _VSTD::swap(__tie_, __rhs.__tie_);
793 _VSTD::swap(__fill_, __rhs.__fill_);
796 template <class _CharT, class _Traits>
797 inline _LIBCPP_INLINE_VISIBILITY
799 basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb)
801 ios_base::set_rdbuf(__sb);
804 inline _LIBCPP_INLINE_VISIBILITY
806 boolalpha(ios_base& __str)
808 __str.setf(ios_base::boolalpha);
812 inline _LIBCPP_INLINE_VISIBILITY
814 noboolalpha(ios_base& __str)
816 __str.unsetf(ios_base::boolalpha);
820 inline _LIBCPP_INLINE_VISIBILITY
822 showbase(ios_base& __str)
824 __str.setf(ios_base::showbase);
828 inline _LIBCPP_INLINE_VISIBILITY
830 noshowbase(ios_base& __str)
832 __str.unsetf(ios_base::showbase);
836 inline _LIBCPP_INLINE_VISIBILITY
838 showpoint(ios_base& __str)
840 __str.setf(ios_base::showpoint);
844 inline _LIBCPP_INLINE_VISIBILITY
846 noshowpoint(ios_base& __str)
848 __str.unsetf(ios_base::showpoint);
852 inline _LIBCPP_INLINE_VISIBILITY
854 showpos(ios_base& __str)
856 __str.setf(ios_base::showpos);
860 inline _LIBCPP_INLINE_VISIBILITY
862 noshowpos(ios_base& __str)
864 __str.unsetf(ios_base::showpos);
868 inline _LIBCPP_INLINE_VISIBILITY
870 skipws(ios_base& __str)
872 __str.setf(ios_base::skipws);
876 inline _LIBCPP_INLINE_VISIBILITY
878 noskipws(ios_base& __str)
880 __str.unsetf(ios_base::skipws);
884 inline _LIBCPP_INLINE_VISIBILITY
886 uppercase(ios_base& __str)
888 __str.setf(ios_base::uppercase);
892 inline _LIBCPP_INLINE_VISIBILITY
894 nouppercase(ios_base& __str)
896 __str.unsetf(ios_base::uppercase);
900 inline _LIBCPP_INLINE_VISIBILITY
902 unitbuf(ios_base& __str)
904 __str.setf(ios_base::unitbuf);
908 inline _LIBCPP_INLINE_VISIBILITY
910 nounitbuf(ios_base& __str)
912 __str.unsetf(ios_base::unitbuf);
916 inline _LIBCPP_INLINE_VISIBILITY
918 internal(ios_base& __str)
920 __str.setf(ios_base::internal, ios_base::adjustfield);
924 inline _LIBCPP_INLINE_VISIBILITY
926 left(ios_base& __str)
928 __str.setf(ios_base::left, ios_base::adjustfield);
932 inline _LIBCPP_INLINE_VISIBILITY
934 right(ios_base& __str)
936 __str.setf(ios_base::right, ios_base::adjustfield);
940 inline _LIBCPP_INLINE_VISIBILITY
944 __str.setf(ios_base::dec, ios_base::basefield);
948 inline _LIBCPP_INLINE_VISIBILITY
952 __str.setf(ios_base::hex, ios_base::basefield);
956 inline _LIBCPP_INLINE_VISIBILITY
960 __str.setf(ios_base::oct, ios_base::basefield);
964 inline _LIBCPP_INLINE_VISIBILITY
966 fixed(ios_base& __str)
968 __str.setf(ios_base::fixed, ios_base::floatfield);
972 inline _LIBCPP_INLINE_VISIBILITY
974 scientific(ios_base& __str)
976 __str.setf(ios_base::scientific, ios_base::floatfield);
980 inline _LIBCPP_INLINE_VISIBILITY
982 hexfloat(ios_base& __str)
984 __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
988 inline _LIBCPP_INLINE_VISIBILITY
990 defaultfloat(ios_base& __str)
992 __str.unsetf(ios_base::floatfield);
996 template <class _CharT, class _Traits>
999 typedef basic_ios<_CharT, _Traits> __stream_type;
1000 typedef typename __stream_type::fmtflags fmtflags;
1002 __stream_type& __stream_;
1003 fmtflags __fmtflags_;
1006 __save_flags(const __save_flags&);
1007 __save_flags& operator=(const __save_flags&);
1009 _LIBCPP_INLINE_VISIBILITY
1010 explicit __save_flags(__stream_type& __stream)
1011 : __stream_(__stream),
1012 __fmtflags_(__stream.flags()),
1013 __fill_(__stream.fill())
1015 _LIBCPP_INLINE_VISIBILITY
1018 __stream_.flags(__fmtflags_);
1019 __stream_.fill(__fill_);
1023 _LIBCPP_END_NAMESPACE_STD
1025 #endif // _LIBCPP_IOS