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 __has_feature(cxx_atomic)
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 #if __has_feature(cxx_atomic)
371 static atomic<int> __xindex_;
373 static int __xindex_;
376 size_t __iarray_size_;
377 size_t __iarray_cap_;
379 size_t __parray_size_;
380 size_t __parray_cap_;
384 _LIBCPP_DECLARE_STRONG_ENUM(io_errc)
388 _LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc)
391 struct _LIBCPP_TYPE_VIS_ONLY is_error_code_enum<io_errc> : public true_type { };
393 #ifdef _LIBCPP_HAS_NO_STRONG_ENUMS
395 struct _LIBCPP_TYPE_VIS_ONLY is_error_code_enum<io_errc::__lx> : public true_type { };
399 const error_category& iostream_category() _NOEXCEPT;
401 inline _LIBCPP_INLINE_VISIBILITY
403 make_error_code(io_errc __e) _NOEXCEPT
405 return error_code(static_cast<int>(__e), iostream_category());
408 inline _LIBCPP_INLINE_VISIBILITY
410 make_error_condition(io_errc __e) _NOEXCEPT
412 return error_condition(static_cast<int>(__e), iostream_category());
415 class _LIBCPP_EXCEPTION_ABI ios_base::failure
416 : public system_error
419 explicit failure(const string& __msg, const error_code& __ec = io_errc::stream);
420 explicit failure(const char* __msg, const error_code& __ec = io_errc::stream);
421 virtual ~failure() throw();
424 class _LIBCPP_TYPE_VIS ios_base::Init
433 inline _LIBCPP_INLINE_VISIBILITY
435 ios_base::flags() const
440 inline _LIBCPP_INLINE_VISIBILITY
442 ios_base::flags(fmtflags __fmtfl)
444 fmtflags __r = __fmtflags_;
445 __fmtflags_ = __fmtfl;
449 inline _LIBCPP_INLINE_VISIBILITY
451 ios_base::setf(fmtflags __fmtfl)
453 fmtflags __r = __fmtflags_;
454 __fmtflags_ |= __fmtfl;
458 inline _LIBCPP_INLINE_VISIBILITY
460 ios_base::unsetf(fmtflags __mask)
462 __fmtflags_ &= ~__mask;
465 inline _LIBCPP_INLINE_VISIBILITY
467 ios_base::setf(fmtflags __fmtfl, fmtflags __mask)
469 fmtflags __r = __fmtflags_;
471 __fmtflags_ |= __fmtfl & __mask;
477 inline _LIBCPP_INLINE_VISIBILITY
479 ios_base::precision() const
484 inline _LIBCPP_INLINE_VISIBILITY
486 ios_base::precision(streamsize __prec)
488 streamsize __r = __precision_;
489 __precision_ = __prec;
495 inline _LIBCPP_INLINE_VISIBILITY
497 ios_base::width() const
502 inline _LIBCPP_INLINE_VISIBILITY
504 ios_base::width(streamsize __wide)
506 streamsize __r = __width_;
513 inline _LIBCPP_INLINE_VISIBILITY
515 ios_base::rdstate() const
520 inline _LIBCPP_INLINE_VISIBILITY
522 ios_base::setstate(iostate __state)
524 clear(__rdstate_ | __state);
527 inline _LIBCPP_INLINE_VISIBILITY
529 ios_base::good() const
531 return __rdstate_ == 0;
534 inline _LIBCPP_INLINE_VISIBILITY
536 ios_base::eof() const
538 return (__rdstate_ & eofbit) != 0;
541 inline _LIBCPP_INLINE_VISIBILITY
543 ios_base::fail() const
545 return (__rdstate_ & (failbit | badbit)) != 0;
548 inline _LIBCPP_INLINE_VISIBILITY
550 ios_base::bad() const
552 return (__rdstate_ & badbit) != 0;
555 inline _LIBCPP_INLINE_VISIBILITY
557 ios_base::exceptions() const
559 return __exceptions_;
562 inline _LIBCPP_INLINE_VISIBILITY
564 ios_base::exceptions(iostate __iostate)
566 __exceptions_ = __iostate;
570 template <class _CharT, class _Traits>
571 class _LIBCPP_TYPE_VIS_ONLY basic_ios
576 typedef _CharT char_type;
577 typedef _Traits traits_type;
579 typedef typename traits_type::int_type int_type;
580 typedef typename traits_type::pos_type pos_type;
581 typedef typename traits_type::off_type off_type;
583 _LIBCPP_ALWAYS_INLINE
585 operator bool() const {return !fail();}
586 _LIBCPP_ALWAYS_INLINE bool operator!() const {return fail();}
587 _LIBCPP_ALWAYS_INLINE iostate rdstate() const {return ios_base::rdstate();}
588 _LIBCPP_ALWAYS_INLINE void clear(iostate __state = goodbit) {ios_base::clear(__state);}
589 _LIBCPP_ALWAYS_INLINE void setstate(iostate __state) {ios_base::setstate(__state);}
590 _LIBCPP_ALWAYS_INLINE bool good() const {return ios_base::good();}
591 _LIBCPP_ALWAYS_INLINE bool eof() const {return ios_base::eof();}
592 _LIBCPP_ALWAYS_INLINE bool fail() const {return ios_base::fail();}
593 _LIBCPP_ALWAYS_INLINE bool bad() const {return ios_base::bad();}
595 _LIBCPP_ALWAYS_INLINE iostate exceptions() const {return ios_base::exceptions();}
596 _LIBCPP_ALWAYS_INLINE void exceptions(iostate __iostate) {ios_base::exceptions(__iostate);}
598 // 27.5.4.1 Constructor/destructor:
599 _LIBCPP_INLINE_VISIBILITY
600 explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb);
601 virtual ~basic_ios();
604 _LIBCPP_INLINE_VISIBILITY
605 basic_ostream<char_type, traits_type>* tie() const;
606 _LIBCPP_INLINE_VISIBILITY
607 basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
609 _LIBCPP_INLINE_VISIBILITY
610 basic_streambuf<char_type, traits_type>* rdbuf() const;
611 _LIBCPP_INLINE_VISIBILITY
612 basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
614 basic_ios& copyfmt(const basic_ios& __rhs);
616 _LIBCPP_INLINE_VISIBILITY
617 char_type fill() const;
618 _LIBCPP_INLINE_VISIBILITY
619 char_type fill(char_type __ch);
621 _LIBCPP_INLINE_VISIBILITY
622 locale imbue(const locale& __loc);
624 _LIBCPP_INLINE_VISIBILITY
625 char narrow(char_type __c, char __dfault) const;
626 _LIBCPP_INLINE_VISIBILITY
627 char_type widen(char __c) const;
630 _LIBCPP_ALWAYS_INLINE
631 basic_ios() {// purposefully does no initialization
633 _LIBCPP_INLINE_VISIBILITY
634 void init(basic_streambuf<char_type, traits_type>* __sb);
636 _LIBCPP_INLINE_VISIBILITY
637 void move(basic_ios& __rhs);
638 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
639 _LIBCPP_ALWAYS_INLINE
640 void move(basic_ios&& __rhs) {move(__rhs);}
642 _LIBCPP_INLINE_VISIBILITY
643 void swap(basic_ios& __rhs) _NOEXCEPT;
644 _LIBCPP_INLINE_VISIBILITY
645 void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
647 basic_ostream<char_type, traits_type>* __tie_;
648 mutable int_type __fill_;
651 template <class _CharT, class _Traits>
652 inline _LIBCPP_INLINE_VISIBILITY
653 basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb)
658 template <class _CharT, class _Traits>
659 basic_ios<_CharT, _Traits>::~basic_ios()
663 template <class _CharT, class _Traits>
664 inline _LIBCPP_INLINE_VISIBILITY
666 basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb)
668 ios_base::init(__sb);
670 __fill_ = traits_type::eof();
673 template <class _CharT, class _Traits>
674 inline _LIBCPP_INLINE_VISIBILITY
675 basic_ostream<_CharT, _Traits>*
676 basic_ios<_CharT, _Traits>::tie() const
681 template <class _CharT, class _Traits>
682 inline _LIBCPP_INLINE_VISIBILITY
683 basic_ostream<_CharT, _Traits>*
684 basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr)
686 basic_ostream<char_type, traits_type>* __r = __tie_;
691 template <class _CharT, class _Traits>
692 inline _LIBCPP_INLINE_VISIBILITY
693 basic_streambuf<_CharT, _Traits>*
694 basic_ios<_CharT, _Traits>::rdbuf() const
696 return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());
699 template <class _CharT, class _Traits>
700 inline _LIBCPP_INLINE_VISIBILITY
701 basic_streambuf<_CharT, _Traits>*
702 basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb)
704 basic_streambuf<char_type, traits_type>* __r = rdbuf();
705 ios_base::rdbuf(__sb);
709 template <class _CharT, class _Traits>
710 inline _LIBCPP_INLINE_VISIBILITY
712 basic_ios<_CharT, _Traits>::imbue(const locale& __loc)
714 locale __r = getloc();
715 ios_base::imbue(__loc);
717 rdbuf()->pubimbue(__loc);
721 template <class _CharT, class _Traits>
722 inline _LIBCPP_INLINE_VISIBILITY
724 basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const
726 return use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);
729 template <class _CharT, class _Traits>
730 inline _LIBCPP_INLINE_VISIBILITY
732 basic_ios<_CharT, _Traits>::widen(char __c) const
734 return use_facet<ctype<char_type> >(getloc()).widen(__c);
737 template <class _CharT, class _Traits>
738 inline _LIBCPP_INLINE_VISIBILITY
740 basic_ios<_CharT, _Traits>::fill() const
742 if (traits_type::eq_int_type(traits_type::eof(), __fill_))
743 __fill_ = widen(' ');
747 template <class _CharT, class _Traits>
748 inline _LIBCPP_INLINE_VISIBILITY
750 basic_ios<_CharT, _Traits>::fill(char_type __ch)
752 char_type __r = __fill_;
757 template <class _CharT, class _Traits>
758 basic_ios<_CharT, _Traits>&
759 basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs)
763 __call_callbacks(erase_event);
764 ios_base::copyfmt(__rhs);
765 __tie_ = __rhs.__tie_;
766 __fill_ = __rhs.__fill_;
767 __call_callbacks(copyfmt_event);
768 exceptions(__rhs.exceptions());
773 template <class _CharT, class _Traits>
774 inline _LIBCPP_INLINE_VISIBILITY
776 basic_ios<_CharT, _Traits>::move(basic_ios& __rhs)
778 ios_base::move(__rhs);
779 __tie_ = __rhs.__tie_;
781 __fill_ = __rhs.__fill_;
784 template <class _CharT, class _Traits>
785 inline _LIBCPP_INLINE_VISIBILITY
787 basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT
789 ios_base::swap(__rhs);
790 _VSTD::swap(__tie_, __rhs.__tie_);
791 _VSTD::swap(__fill_, __rhs.__fill_);
794 template <class _CharT, class _Traits>
795 inline _LIBCPP_INLINE_VISIBILITY
797 basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb)
799 ios_base::set_rdbuf(__sb);
802 inline _LIBCPP_INLINE_VISIBILITY
804 boolalpha(ios_base& __str)
806 __str.setf(ios_base::boolalpha);
810 inline _LIBCPP_INLINE_VISIBILITY
812 noboolalpha(ios_base& __str)
814 __str.unsetf(ios_base::boolalpha);
818 inline _LIBCPP_INLINE_VISIBILITY
820 showbase(ios_base& __str)
822 __str.setf(ios_base::showbase);
826 inline _LIBCPP_INLINE_VISIBILITY
828 noshowbase(ios_base& __str)
830 __str.unsetf(ios_base::showbase);
834 inline _LIBCPP_INLINE_VISIBILITY
836 showpoint(ios_base& __str)
838 __str.setf(ios_base::showpoint);
842 inline _LIBCPP_INLINE_VISIBILITY
844 noshowpoint(ios_base& __str)
846 __str.unsetf(ios_base::showpoint);
850 inline _LIBCPP_INLINE_VISIBILITY
852 showpos(ios_base& __str)
854 __str.setf(ios_base::showpos);
858 inline _LIBCPP_INLINE_VISIBILITY
860 noshowpos(ios_base& __str)
862 __str.unsetf(ios_base::showpos);
866 inline _LIBCPP_INLINE_VISIBILITY
868 skipws(ios_base& __str)
870 __str.setf(ios_base::skipws);
874 inline _LIBCPP_INLINE_VISIBILITY
876 noskipws(ios_base& __str)
878 __str.unsetf(ios_base::skipws);
882 inline _LIBCPP_INLINE_VISIBILITY
884 uppercase(ios_base& __str)
886 __str.setf(ios_base::uppercase);
890 inline _LIBCPP_INLINE_VISIBILITY
892 nouppercase(ios_base& __str)
894 __str.unsetf(ios_base::uppercase);
898 inline _LIBCPP_INLINE_VISIBILITY
900 unitbuf(ios_base& __str)
902 __str.setf(ios_base::unitbuf);
906 inline _LIBCPP_INLINE_VISIBILITY
908 nounitbuf(ios_base& __str)
910 __str.unsetf(ios_base::unitbuf);
914 inline _LIBCPP_INLINE_VISIBILITY
916 internal(ios_base& __str)
918 __str.setf(ios_base::internal, ios_base::adjustfield);
922 inline _LIBCPP_INLINE_VISIBILITY
924 left(ios_base& __str)
926 __str.setf(ios_base::left, ios_base::adjustfield);
930 inline _LIBCPP_INLINE_VISIBILITY
932 right(ios_base& __str)
934 __str.setf(ios_base::right, ios_base::adjustfield);
938 inline _LIBCPP_INLINE_VISIBILITY
942 __str.setf(ios_base::dec, ios_base::basefield);
946 inline _LIBCPP_INLINE_VISIBILITY
950 __str.setf(ios_base::hex, ios_base::basefield);
954 inline _LIBCPP_INLINE_VISIBILITY
958 __str.setf(ios_base::oct, ios_base::basefield);
962 inline _LIBCPP_INLINE_VISIBILITY
964 fixed(ios_base& __str)
966 __str.setf(ios_base::fixed, ios_base::floatfield);
970 inline _LIBCPP_INLINE_VISIBILITY
972 scientific(ios_base& __str)
974 __str.setf(ios_base::scientific, ios_base::floatfield);
978 inline _LIBCPP_INLINE_VISIBILITY
980 hexfloat(ios_base& __str)
982 __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
986 inline _LIBCPP_INLINE_VISIBILITY
988 defaultfloat(ios_base& __str)
990 __str.unsetf(ios_base::floatfield);
994 template <class _CharT, class _Traits>
997 typedef basic_ios<_CharT, _Traits> __stream_type;
998 typedef typename __stream_type::fmtflags fmtflags;
1000 __stream_type& __stream_;
1001 fmtflags __fmtflags_;
1004 __save_flags(const __save_flags&);
1005 __save_flags& operator=(const __save_flags&);
1007 _LIBCPP_INLINE_VISIBILITY
1008 explicit __save_flags(__stream_type& __stream)
1009 : __stream_(__stream),
1010 __fmtflags_(__stream.flags()),
1011 __fill_(__stream.fill())
1013 _LIBCPP_INLINE_VISIBILITY
1016 __stream_.flags(__fmtflags_);
1017 __stream_.fill(__fill_);
1021 _LIBCPP_END_NAMESPACE_STD
1023 #endif // _LIBCPP_IOS