xref: /llvm-project-15.0.7/libcxx/include/ios (revision a462f5cc) 
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
19namespace std
20{
21
22typedef OFF_T streamoff;
23typedef SZ_T streamsize;
24template <class stateT> class fpos;
25
26class ios_base
27{
28public:
29    class failure;
30
31    typedef T1 fmtflags;
32    static const fmtflags boolalpha;
33    static const fmtflags dec;
34    static const fmtflags fixed;
35    static const fmtflags hex;
36    static const fmtflags internal;
37    static const fmtflags left;
38    static const fmtflags oct;
39    static const fmtflags right;
40    static const fmtflags scientific;
41    static const fmtflags showbase;
42    static const fmtflags showpoint;
43    static const fmtflags showpos;
44    static const fmtflags skipws;
45    static const fmtflags unitbuf;
46    static const fmtflags uppercase;
47    static const fmtflags adjustfield;
48    static const fmtflags basefield;
49    static const fmtflags floatfield;
50
51    typedef T2 iostate;
52    static const iostate badbit;
53    static const iostate eofbit;
54    static const iostate failbit;
55    static const iostate goodbit;
56
57    typedef T3 openmode;
58    static const openmode app;
59    static const openmode ate;
60    static const openmode binary;
61    static const openmode in;
62    static const openmode out;
63    static const openmode trunc;
64
65    typedef T4 seekdir;
66    static const seekdir beg;
67    static const seekdir cur;
68    static const 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;
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
159protected:
160    basic_ios();
161    void init(basic_streambuf<charT,traits>* sb);
162    void move(basic_ios& rhs);
163    void swap(basic_ios& rhs);
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);
207error_condition make_error_condition(io_errc e);
208storage-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#pragma GCC system_header
220
221_LIBCPP_BEGIN_NAMESPACE_STD
222
223typedef ptrdiff_t streamsize;
224
225class _LIBCPP_VISIBLE ios_base
226{
227public:
228    class failure;
229
230    typedef unsigned int fmtflags;
231    static const fmtflags boolalpha   = 0x0001;
232    static const fmtflags dec         = 0x0002;
233    static const fmtflags fixed       = 0x0004;
234    static const fmtflags hex         = 0x0008;
235    static const fmtflags internal    = 0x0010;
236    static const fmtflags left        = 0x0020;
237    static const fmtflags oct         = 0x0040;
238    static const fmtflags right       = 0x0080;
239    static const fmtflags scientific  = 0x0100;
240    static const fmtflags showbase    = 0x0200;
241    static const fmtflags showpoint   = 0x0400;
242    static const fmtflags showpos     = 0x0800;
243    static const fmtflags skipws      = 0x1000;
244    static const fmtflags unitbuf     = 0x2000;
245    static const fmtflags uppercase   = 0x4000;
246    static const fmtflags adjustfield = left | right | internal;
247    static const fmtflags basefield   = dec | oct | hex;
248    static const fmtflags floatfield  = scientific | fixed;
249
250    typedef unsigned int iostate;
251    typedef iostate      io_state;
252    static const iostate badbit  = 0x1;
253    static const iostate eofbit  = 0x2;
254    static const iostate failbit = 0x4;
255    static const iostate goodbit = 0x0;
256
257    typedef unsigned int openmode;
258    typedef openmode     open_mode;
259    static const openmode app    = 0x01;
260    static const openmode ate    = 0x02;
261    static const openmode binary = 0x04;
262    static const openmode in     = 0x08;
263    static const openmode out    = 0x10;
264    static const openmode trunc  = 0x20;
265
266    enum seekdir {beg, cur, end};
267    typedef seekdir seek_dir;
268
269    typedef _STD::streamoff streamoff;
270    typedef _STD::streampos streampos;
271
272    class Init;
273
274    // 27.5.2.2 fmtflags state:
275    _LIBCPP_INLINE_VISIBILITY fmtflags flags() const;
276    _LIBCPP_INLINE_VISIBILITY fmtflags flags(fmtflags __fmtfl);
277    _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl);
278    _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl, fmtflags __mask);
279    _LIBCPP_INLINE_VISIBILITY void unsetf(fmtflags __mask);
280
281    _LIBCPP_INLINE_VISIBILITY streamsize precision() const;
282    _LIBCPP_INLINE_VISIBILITY streamsize precision(streamsize __prec);
283    _LIBCPP_INLINE_VISIBILITY streamsize width() const;
284    _LIBCPP_INLINE_VISIBILITY streamsize width(streamsize __wide);
285
286    // 27.5.2.3 locales:
287    locale imbue(const locale& __loc);
288    locale getloc() const;
289
290    // 27.5.2.5 storage:
291    static int xalloc();
292    long& iword(int __index);
293    void*& pword(int __index);
294
295    // destructor
296    virtual ~ios_base();
297
298    // 27.5.2.6 callbacks;
299    enum event { erase_event, imbue_event, copyfmt_event };
300    typedef void (*event_callback)(event, ios_base&, int __index);
301    void register_callback(event_callback __fn, int __index);
302
303private:
304    ios_base(const ios_base&); // = delete;
305    ios_base& operator=(const ios_base&); // = delete;
306
307public:
308    static bool sync_with_stdio(bool __sync = true);
309
310    _LIBCPP_INLINE_VISIBILITY iostate rdstate() const;
311    void clear(iostate __state = goodbit);
312    _LIBCPP_INLINE_VISIBILITY void setstate(iostate __state);
313
314    _LIBCPP_INLINE_VISIBILITY bool good() const;
315    _LIBCPP_INLINE_VISIBILITY bool eof() const;
316    _LIBCPP_INLINE_VISIBILITY bool fail() const;
317    _LIBCPP_INLINE_VISIBILITY bool bad() const;
318
319    _LIBCPP_INLINE_VISIBILITY iostate exceptions() const;
320    _LIBCPP_INLINE_VISIBILITY void exceptions(iostate __except);
321
322    void __set_badbit_and_consider_rethrow();
323    void __set_failbit_and_consider_rethrow();
324
325protected:
326    _LIBCPP_INLINE_VISIBILITY
327    ios_base() {// purposefully does no initialization
328               }
329
330    void init(void* __sb);
331    _LIBCPP_ALWAYS_INLINE void* rdbuf() const {return __rdbuf_;}
332
333    _LIBCPP_ALWAYS_INLINE
334    void rdbuf(void* __sb)
335    {
336        __rdbuf_ = __sb;
337        clear();
338    }
339
340    void __call_callbacks(event);
341    void copyfmt(const ios_base&);
342    void move(ios_base&);
343    void swap(ios_base&);
344
345    _LIBCPP_ALWAYS_INLINE
346    void set_rdbuf(void* __sb)
347    {
348        __rdbuf_ = __sb;
349    }
350
351private:
352    // All data members must be scalars
353    fmtflags        __fmtflags_;
354    streamsize      __precision_;
355    streamsize      __width_;
356    iostate         __rdstate_;
357    iostate         __exceptions_;
358    void*           __rdbuf_;
359    void*           __loc_;
360    event_callback* __fn_;
361    int*            __index_;
362    size_t          __event_size_;
363    size_t          __event_cap_;
364    static int      __xindex_;
365    long*           __iarray_;
366    size_t          __iarray_size_;
367    size_t          __iarray_cap_;
368    void**          __parray_;
369    size_t          __parray_size_;
370    size_t          __parray_cap_;
371};
372
373//enum class io_errc
374struct _LIBCPP_VISIBLE io_errc
375{
376enum _ {
377    stream = 1
378};
379    _ __v_;
380
381    _LIBCPP_ALWAYS_INLINE io_errc(_ __v) : __v_(__v) {}
382    _LIBCPP_ALWAYS_INLINE operator int() const {return __v_;}
383};
384
385template <>
386struct _LIBCPP_VISIBLE is_error_code_enum<io_errc> : public true_type { };
387template <>
388struct _LIBCPP_VISIBLE is_error_code_enum<io_errc::_> : public true_type { };
389
390_LIBCPP_VISIBLE
391const error_category& iostream_category();
392
393inline _LIBCPP_INLINE_VISIBILITY
394error_code
395make_error_code(io_errc __e)
396{
397    return error_code(static_cast<int>(__e), iostream_category());
398}
399
400inline _LIBCPP_INLINE_VISIBILITY
401error_condition
402make_error_condition(io_errc __e)
403{
404    return error_condition(static_cast<int>(__e), iostream_category());
405}
406
407class _LIBCPP_EXCEPTION_ABI ios_base::failure
408    : public system_error
409{
410public:
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
416class _LIBCPP_VISIBLE ios_base::Init
417{
418public:
419    Init();
420    ~Init();
421};
422
423// fmtflags
424
425inline _LIBCPP_INLINE_VISIBILITY
426ios_base::fmtflags
427ios_base::flags() const
428{
429    return __fmtflags_;
430}
431
432inline _LIBCPP_INLINE_VISIBILITY
433ios_base::fmtflags
434ios_base::flags(fmtflags __fmtfl)
435{
436    fmtflags __r = __fmtflags_;
437    __fmtflags_ = __fmtfl;
438    return __r;
439}
440
441inline _LIBCPP_INLINE_VISIBILITY
442ios_base::fmtflags
443ios_base::setf(fmtflags __fmtfl)
444{
445    fmtflags __r = __fmtflags_;
446    __fmtflags_ |= __fmtfl;
447    return __r;
448}
449
450inline _LIBCPP_INLINE_VISIBILITY
451void
452ios_base::unsetf(fmtflags __mask)
453{
454    __fmtflags_ &= ~__mask;
455}
456
457inline _LIBCPP_INLINE_VISIBILITY
458ios_base::fmtflags
459ios_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
469inline _LIBCPP_INLINE_VISIBILITY
470streamsize
471ios_base::precision() const
472{
473    return __precision_;
474}
475
476inline _LIBCPP_INLINE_VISIBILITY
477streamsize
478ios_base::precision(streamsize __prec)
479{
480    streamsize __r = __precision_;
481    __precision_ = __prec;
482    return __r;
483}
484
485// width
486
487inline _LIBCPP_INLINE_VISIBILITY
488streamsize
489ios_base::width() const
490{
491    return __width_;
492}
493
494inline _LIBCPP_INLINE_VISIBILITY
495streamsize
496ios_base::width(streamsize __wide)
497{
498    streamsize __r = __width_;
499    __width_ = __wide;
500    return __r;
501}
502
503// iostate
504
505inline _LIBCPP_INLINE_VISIBILITY
506ios_base::iostate
507ios_base::rdstate() const
508{
509    return __rdstate_;
510}
511
512inline _LIBCPP_INLINE_VISIBILITY
513void
514ios_base::setstate(iostate __state)
515{
516    clear(__rdstate_ | __state);
517}
518
519inline _LIBCPP_INLINE_VISIBILITY
520bool
521ios_base::good() const
522{
523    return __rdstate_ == 0;
524}
525
526inline _LIBCPP_INLINE_VISIBILITY
527bool
528ios_base::eof() const
529{
530    return __rdstate_ & eofbit;
531}
532
533inline _LIBCPP_INLINE_VISIBILITY
534bool
535ios_base::fail() const
536{
537    return __rdstate_ & (failbit | badbit);
538}
539
540inline _LIBCPP_INLINE_VISIBILITY
541bool
542ios_base::bad() const
543{
544    return __rdstate_ & badbit;
545}
546
547inline _LIBCPP_INLINE_VISIBILITY
548ios_base::iostate
549ios_base::exceptions() const
550{
551    return __exceptions_;
552}
553
554inline _LIBCPP_INLINE_VISIBILITY
555void
556ios_base::exceptions(iostate __except)
557{
558    __exceptions_ = __except;
559    clear(__rdstate_);
560}
561
562template <class _CharT, class _Traits>
563class _LIBCPP_VISIBLE basic_ios
564    : public ios_base
565{
566public:
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 // explicit
576        operator bool() const {return !fail();}
577    _LIBCPP_ALWAYS_INLINE bool operator!() const    {return  fail();}
578    _LIBCPP_ALWAYS_INLINE iostate rdstate() const   {return ios_base::rdstate();}
579    _LIBCPP_ALWAYS_INLINE void clear(iostate __state = goodbit) {ios_base::clear(__state);}
580    _LIBCPP_ALWAYS_INLINE void setstate(iostate __state) {ios_base::setstate(__state);}
581    _LIBCPP_ALWAYS_INLINE bool good() const {return ios_base::good();}
582    _LIBCPP_ALWAYS_INLINE bool eof() const  {return ios_base::eof();}
583    _LIBCPP_ALWAYS_INLINE bool fail() const {return ios_base::fail();}
584    _LIBCPP_ALWAYS_INLINE bool bad() const  {return ios_base::bad();}
585
586    _LIBCPP_ALWAYS_INLINE iostate exceptions() const {return ios_base::exceptions();}
587    _LIBCPP_ALWAYS_INLINE void exceptions(iostate __except) {ios_base::exceptions(__except);}
588
589    // 27.5.4.1 Constructor/destructor:
590    _LIBCPP_INLINE_VISIBILITY
591    explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb);
592    virtual ~basic_ios();
593
594    // 27.5.4.2 Members:
595    _LIBCPP_INLINE_VISIBILITY
596    basic_ostream<char_type, traits_type>* tie() const;
597    _LIBCPP_INLINE_VISIBILITY
598    basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
599
600    _LIBCPP_INLINE_VISIBILITY
601    basic_streambuf<char_type, traits_type>* rdbuf() const;
602    _LIBCPP_INLINE_VISIBILITY
603    basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
604
605    basic_ios& copyfmt(const basic_ios& __rhs);
606
607    _LIBCPP_INLINE_VISIBILITY
608    char_type fill() const;
609    _LIBCPP_INLINE_VISIBILITY
610    char_type fill(char_type __ch);
611
612    _LIBCPP_INLINE_VISIBILITY
613    locale imbue(const locale& __loc);
614
615    _LIBCPP_INLINE_VISIBILITY
616    char narrow(char_type __c, char __dfault) const;
617    _LIBCPP_INLINE_VISIBILITY
618    char_type widen(char __c) const;
619
620protected:
621    _LIBCPP_ALWAYS_INLINE
622    basic_ios() {// purposefully does no initialization
623                }
624    _LIBCPP_INLINE_VISIBILITY
625    void init(basic_streambuf<char_type, traits_type>* __sb);
626
627    _LIBCPP_INLINE_VISIBILITY
628    void move(basic_ios& __rhs);
629#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
630    _LIBCPP_ALWAYS_INLINE
631    void move(basic_ios&& __rhs) {move(__rhs);}
632#endif
633    _LIBCPP_INLINE_VISIBILITY
634    void swap(basic_ios& __rhs);
635    _LIBCPP_INLINE_VISIBILITY
636    void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
637private:
638    basic_ostream<char_type, traits_type>* __tie_;
639    char_type __fill_;
640};
641
642template <class _CharT, class _Traits>
643inline _LIBCPP_INLINE_VISIBILITY
644basic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb)
645{
646    init(__sb);
647}
648
649template <class _CharT, class _Traits>
650basic_ios<_CharT, _Traits>::~basic_ios()
651{
652}
653
654template <class _CharT, class _Traits>
655inline _LIBCPP_INLINE_VISIBILITY
656void
657basic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb)
658{
659    ios_base::init(__sb);
660    __tie_ = 0;
661    __fill_ = widen(' ');
662}
663
664template <class _CharT, class _Traits>
665inline _LIBCPP_INLINE_VISIBILITY
666basic_ostream<_CharT, _Traits>*
667basic_ios<_CharT, _Traits>::tie() const
668{
669    return __tie_;
670}
671
672template <class _CharT, class _Traits>
673inline _LIBCPP_INLINE_VISIBILITY
674basic_ostream<_CharT, _Traits>*
675basic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr)
676{
677    basic_ostream<char_type, traits_type>* __r = __tie_;
678    __tie_ = __tiestr;
679    return __r;
680}
681
682template <class _CharT, class _Traits>
683inline _LIBCPP_INLINE_VISIBILITY
684basic_streambuf<_CharT, _Traits>*
685basic_ios<_CharT, _Traits>::rdbuf() const
686{
687    return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());
688}
689
690template <class _CharT, class _Traits>
691inline _LIBCPP_INLINE_VISIBILITY
692basic_streambuf<_CharT, _Traits>*
693basic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb)
694{
695    basic_streambuf<char_type, traits_type>* __r = rdbuf();
696    ios_base::rdbuf(__sb);
697    return __r;
698}
699
700template <class _CharT, class _Traits>
701inline _LIBCPP_INLINE_VISIBILITY
702locale
703basic_ios<_CharT, _Traits>::imbue(const locale& __loc)
704{
705    locale __r = getloc();
706    ios_base::imbue(__loc);
707    if (rdbuf())
708        rdbuf()->pubimbue(__loc);
709    return __r;
710}
711
712template <class _CharT, class _Traits>
713inline _LIBCPP_INLINE_VISIBILITY
714char
715basic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const
716{
717    return use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);
718}
719
720template <class _CharT, class _Traits>
721inline _LIBCPP_INLINE_VISIBILITY
722_CharT
723basic_ios<_CharT, _Traits>::widen(char __c) const
724{
725    return use_facet<ctype<char_type> >(getloc()).widen(__c);
726}
727
728template <class _CharT, class _Traits>
729inline _LIBCPP_INLINE_VISIBILITY
730_CharT
731basic_ios<_CharT, _Traits>::fill() const
732{
733    return __fill_;
734}
735
736template <class _CharT, class _Traits>
737inline _LIBCPP_INLINE_VISIBILITY
738_CharT
739basic_ios<_CharT, _Traits>::fill(char_type __ch)
740{
741    char_type __r = __fill_;
742    __fill_ = __ch;
743    return __r;
744}
745
746template <class _CharT, class _Traits>
747basic_ios<_CharT, _Traits>&
748basic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs)
749{
750    if (this != &__rhs)
751    {
752        __call_callbacks(erase_event);
753        ios_base::copyfmt(__rhs);
754        __tie_ = __rhs.__tie_;
755        __fill_ = __rhs.__fill_;
756        __call_callbacks(copyfmt_event);
757        exceptions(__rhs.exceptions());
758    }
759    return *this;
760}
761
762template <class _CharT, class _Traits>
763inline _LIBCPP_INLINE_VISIBILITY
764void
765basic_ios<_CharT, _Traits>::move(basic_ios& __rhs)
766{
767    ios_base::move(__rhs);
768    __tie_ = __rhs.__tie_;
769    __rhs.__tie_ = 0;
770    __fill_ = __rhs.__fill_;
771}
772
773template <class _CharT, class _Traits>
774inline _LIBCPP_INLINE_VISIBILITY
775void
776basic_ios<_CharT, _Traits>::swap(basic_ios& __rhs)
777{
778    ios_base::swap(__rhs);
779    _STD::swap(__tie_, __rhs.__tie_);
780    _STD::swap(__fill_, __rhs.__fill_);
781}
782
783template <class _CharT, class _Traits>
784inline _LIBCPP_INLINE_VISIBILITY
785void
786basic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb)
787{
788    ios_base::set_rdbuf(__sb);
789}
790
791inline _LIBCPP_INLINE_VISIBILITY
792ios_base&
793boolalpha(ios_base& __str)
794{
795    __str.setf(ios_base::boolalpha);
796    return __str;
797}
798
799inline _LIBCPP_INLINE_VISIBILITY
800ios_base&
801noboolalpha(ios_base& __str)
802{
803    __str.unsetf(ios_base::boolalpha);
804    return __str;
805}
806
807inline _LIBCPP_INLINE_VISIBILITY
808ios_base&
809showbase(ios_base& __str)
810{
811    __str.setf(ios_base::showbase);
812    return __str;
813}
814
815inline _LIBCPP_INLINE_VISIBILITY
816ios_base&
817noshowbase(ios_base& __str)
818{
819    __str.unsetf(ios_base::showbase);
820    return __str;
821}
822
823inline _LIBCPP_INLINE_VISIBILITY
824ios_base&
825showpoint(ios_base& __str)
826{
827    __str.setf(ios_base::showpoint);
828    return __str;
829}
830
831inline _LIBCPP_INLINE_VISIBILITY
832ios_base&
833noshowpoint(ios_base& __str)
834{
835    __str.unsetf(ios_base::showpoint);
836    return __str;
837}
838
839inline _LIBCPP_INLINE_VISIBILITY
840ios_base&
841showpos(ios_base& __str)
842{
843    __str.setf(ios_base::showpos);
844    return __str;
845}
846
847inline _LIBCPP_INLINE_VISIBILITY
848ios_base&
849noshowpos(ios_base& __str)
850{
851    __str.unsetf(ios_base::showpos);
852    return __str;
853}
854
855inline _LIBCPP_INLINE_VISIBILITY
856ios_base&
857skipws(ios_base& __str)
858{
859    __str.setf(ios_base::skipws);
860    return __str;
861}
862
863inline _LIBCPP_INLINE_VISIBILITY
864ios_base&
865noskipws(ios_base& __str)
866{
867    __str.unsetf(ios_base::skipws);
868    return __str;
869}
870
871inline _LIBCPP_INLINE_VISIBILITY
872ios_base&
873uppercase(ios_base& __str)
874{
875    __str.setf(ios_base::uppercase);
876    return __str;
877}
878
879inline _LIBCPP_INLINE_VISIBILITY
880ios_base&
881nouppercase(ios_base& __str)
882{
883    __str.unsetf(ios_base::uppercase);
884    return __str;
885}
886
887inline _LIBCPP_INLINE_VISIBILITY
888ios_base&
889unitbuf(ios_base& __str)
890{
891    __str.setf(ios_base::unitbuf);
892    return __str;
893}
894
895inline _LIBCPP_INLINE_VISIBILITY
896ios_base&
897nounitbuf(ios_base& __str)
898{
899    __str.unsetf(ios_base::unitbuf);
900    return __str;
901}
902
903inline _LIBCPP_INLINE_VISIBILITY
904ios_base&
905internal(ios_base& __str)
906{
907    __str.setf(ios_base::internal, ios_base::adjustfield);
908    return __str;
909}
910
911inline _LIBCPP_INLINE_VISIBILITY
912ios_base&
913left(ios_base& __str)
914{
915    __str.setf(ios_base::left, ios_base::adjustfield);
916    return __str;
917}
918
919inline _LIBCPP_INLINE_VISIBILITY
920ios_base&
921right(ios_base& __str)
922{
923    __str.setf(ios_base::right, ios_base::adjustfield);
924    return __str;
925}
926
927inline _LIBCPP_INLINE_VISIBILITY
928ios_base&
929dec(ios_base& __str)
930{
931    __str.setf(ios_base::dec, ios_base::basefield);
932    return __str;
933}
934
935inline _LIBCPP_INLINE_VISIBILITY
936ios_base&
937hex(ios_base& __str)
938{
939    __str.setf(ios_base::hex, ios_base::basefield);
940    return __str;
941}
942
943inline _LIBCPP_INLINE_VISIBILITY
944ios_base&
945oct(ios_base& __str)
946{
947    __str.setf(ios_base::oct, ios_base::basefield);
948    return __str;
949}
950
951inline _LIBCPP_INLINE_VISIBILITY
952ios_base&
953fixed(ios_base& __str)
954{
955    __str.setf(ios_base::fixed, ios_base::floatfield);
956    return __str;
957}
958
959inline _LIBCPP_INLINE_VISIBILITY
960ios_base&
961scientific(ios_base& __str)
962{
963    __str.setf(ios_base::scientific, ios_base::floatfield);
964    return __str;
965}
966
967inline _LIBCPP_INLINE_VISIBILITY
968ios_base&
969hexfloat(ios_base& __str)
970{
971    __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
972    return __str;
973}
974
975inline _LIBCPP_INLINE_VISIBILITY
976ios_base&
977defaultfloat(ios_base& __str)
978{
979    __str.unsetf(ios_base::floatfield);
980    return __str;
981}
982
983_LIBCPP_END_NAMESPACE_STD
984
985#endif  // _LIBCPP_IOS
986