xref: /freebsd/contrib/llvm-project/libcxx/include/ios (revision bdd1243df58e60e85101c09001d9812a789b6bc4)
10b57cec5SDimitry Andric// -*- C++ -*-
2349cc55cSDimitry Andric//===----------------------------------------------------------------------===//
30b57cec5SDimitry Andric//
40b57cec5SDimitry Andric// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
50b57cec5SDimitry Andric// See https://llvm.org/LICENSE.txt for license information.
60b57cec5SDimitry Andric// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
70b57cec5SDimitry Andric//
80b57cec5SDimitry Andric//===----------------------------------------------------------------------===//
90b57cec5SDimitry Andric
100b57cec5SDimitry Andric#ifndef _LIBCPP_IOS
110b57cec5SDimitry Andric#define _LIBCPP_IOS
120b57cec5SDimitry Andric
130b57cec5SDimitry Andric/*
140b57cec5SDimitry Andric    ios synopsis
150b57cec5SDimitry Andric
160b57cec5SDimitry Andric#include <iosfwd>
170b57cec5SDimitry Andric
180b57cec5SDimitry Andricnamespace std
190b57cec5SDimitry Andric{
200b57cec5SDimitry Andric
210b57cec5SDimitry Andrictypedef OFF_T streamoff;
220b57cec5SDimitry Andrictypedef SZ_T streamsize;
230b57cec5SDimitry Andrictemplate <class stateT> class fpos;
240b57cec5SDimitry Andric
250b57cec5SDimitry Andricclass ios_base
260b57cec5SDimitry Andric{
270b57cec5SDimitry Andricpublic:
280b57cec5SDimitry Andric    class failure;
290b57cec5SDimitry Andric
300b57cec5SDimitry Andric    typedef T1 fmtflags;
310b57cec5SDimitry Andric    static constexpr fmtflags boolalpha;
320b57cec5SDimitry Andric    static constexpr fmtflags dec;
330b57cec5SDimitry Andric    static constexpr fmtflags fixed;
340b57cec5SDimitry Andric    static constexpr fmtflags hex;
350b57cec5SDimitry Andric    static constexpr fmtflags internal;
360b57cec5SDimitry Andric    static constexpr fmtflags left;
370b57cec5SDimitry Andric    static constexpr fmtflags oct;
380b57cec5SDimitry Andric    static constexpr fmtflags right;
390b57cec5SDimitry Andric    static constexpr fmtflags scientific;
400b57cec5SDimitry Andric    static constexpr fmtflags showbase;
410b57cec5SDimitry Andric    static constexpr fmtflags showpoint;
420b57cec5SDimitry Andric    static constexpr fmtflags showpos;
430b57cec5SDimitry Andric    static constexpr fmtflags skipws;
440b57cec5SDimitry Andric    static constexpr fmtflags unitbuf;
450b57cec5SDimitry Andric    static constexpr fmtflags uppercase;
460b57cec5SDimitry Andric    static constexpr fmtflags adjustfield;
470b57cec5SDimitry Andric    static constexpr fmtflags basefield;
480b57cec5SDimitry Andric    static constexpr fmtflags floatfield;
490b57cec5SDimitry Andric
500b57cec5SDimitry Andric    typedef T2 iostate;
510b57cec5SDimitry Andric    static constexpr iostate badbit;
520b57cec5SDimitry Andric    static constexpr iostate eofbit;
530b57cec5SDimitry Andric    static constexpr iostate failbit;
540b57cec5SDimitry Andric    static constexpr iostate goodbit;
550b57cec5SDimitry Andric
560b57cec5SDimitry Andric    typedef T3 openmode;
570b57cec5SDimitry Andric    static constexpr openmode app;
580b57cec5SDimitry Andric    static constexpr openmode ate;
590b57cec5SDimitry Andric    static constexpr openmode binary;
600b57cec5SDimitry Andric    static constexpr openmode in;
610b57cec5SDimitry Andric    static constexpr openmode out;
620b57cec5SDimitry Andric    static constexpr openmode trunc;
630b57cec5SDimitry Andric
640b57cec5SDimitry Andric    typedef T4 seekdir;
650b57cec5SDimitry Andric    static constexpr seekdir beg;
660b57cec5SDimitry Andric    static constexpr seekdir cur;
670b57cec5SDimitry Andric    static constexpr seekdir end;
680b57cec5SDimitry Andric
690b57cec5SDimitry Andric    class Init;
700b57cec5SDimitry Andric
710b57cec5SDimitry Andric    // 27.5.2.2 fmtflags state:
720b57cec5SDimitry Andric    fmtflags flags() const;
730b57cec5SDimitry Andric    fmtflags flags(fmtflags fmtfl);
740b57cec5SDimitry Andric    fmtflags setf(fmtflags fmtfl);
750b57cec5SDimitry Andric    fmtflags setf(fmtflags fmtfl, fmtflags mask);
760b57cec5SDimitry Andric    void unsetf(fmtflags mask);
770b57cec5SDimitry Andric
780b57cec5SDimitry Andric    streamsize precision() const;
790b57cec5SDimitry Andric    streamsize precision(streamsize prec);
800b57cec5SDimitry Andric    streamsize width() const;
810b57cec5SDimitry Andric    streamsize width(streamsize wide);
820b57cec5SDimitry Andric
830b57cec5SDimitry Andric    // 27.5.2.3 locales:
840b57cec5SDimitry Andric    locale imbue(const locale& loc);
850b57cec5SDimitry Andric    locale getloc() const;
860b57cec5SDimitry Andric
870b57cec5SDimitry Andric    // 27.5.2.5 storage:
880b57cec5SDimitry Andric    static int xalloc();
890b57cec5SDimitry Andric    long& iword(int index);
900b57cec5SDimitry Andric    void*& pword(int index);
910b57cec5SDimitry Andric
920b57cec5SDimitry Andric    // destructor
930b57cec5SDimitry Andric    virtual ~ios_base();
940b57cec5SDimitry Andric
950b57cec5SDimitry Andric    // 27.5.2.6 callbacks;
960b57cec5SDimitry Andric    enum event { erase_event, imbue_event, copyfmt_event };
970b57cec5SDimitry Andric    typedef void (*event_callback)(event, ios_base&, int index);
980b57cec5SDimitry Andric    void register_callback(event_callback fn, int index);
990b57cec5SDimitry Andric
1000b57cec5SDimitry Andric    ios_base(const ios_base&) = delete;
1010b57cec5SDimitry Andric    ios_base& operator=(const ios_base&) = delete;
1020b57cec5SDimitry Andric
1030b57cec5SDimitry Andric    static bool sync_with_stdio(bool sync = true);
1040b57cec5SDimitry Andric
1050b57cec5SDimitry Andricprotected:
1060b57cec5SDimitry Andric    ios_base();
1070b57cec5SDimitry Andric};
1080b57cec5SDimitry Andric
1090b57cec5SDimitry Andrictemplate <class charT, class traits = char_traits<charT> >
1100b57cec5SDimitry Andricclass basic_ios
1110b57cec5SDimitry Andric    : public ios_base
1120b57cec5SDimitry Andric{
1130b57cec5SDimitry Andricpublic:
1140b57cec5SDimitry Andric    // types:
1150b57cec5SDimitry Andric    typedef charT char_type;
1160b57cec5SDimitry Andric    typedef typename traits::int_type int_type;  // removed in C++17
1170b57cec5SDimitry Andric    typedef typename traits::pos_type pos_type;  // removed in C++17
1180b57cec5SDimitry Andric    typedef typename traits::off_type off_type;  // removed in C++17
1190b57cec5SDimitry Andric    typedef traits traits_type;
1200b57cec5SDimitry Andric
1210b57cec5SDimitry Andric    operator unspecified-bool-type() const;
1220b57cec5SDimitry Andric    bool operator!() const;
1230b57cec5SDimitry Andric    iostate rdstate() const;
1240b57cec5SDimitry Andric    void clear(iostate state = goodbit);
1250b57cec5SDimitry Andric    void setstate(iostate state);
1260b57cec5SDimitry Andric    bool good() const;
1270b57cec5SDimitry Andric    bool eof() const;
1280b57cec5SDimitry Andric    bool fail() const;
1290b57cec5SDimitry Andric    bool bad() const;
1300b57cec5SDimitry Andric
1310b57cec5SDimitry Andric    iostate exceptions() const;
1320b57cec5SDimitry Andric    void exceptions(iostate except);
1330b57cec5SDimitry Andric
1340b57cec5SDimitry Andric    // 27.5.4.1 Constructor/destructor:
1350b57cec5SDimitry Andric    explicit basic_ios(basic_streambuf<charT,traits>* sb);
1360b57cec5SDimitry Andric    virtual ~basic_ios();
1370b57cec5SDimitry Andric
1380b57cec5SDimitry Andric    // 27.5.4.2 Members:
1390b57cec5SDimitry Andric    basic_ostream<charT,traits>* tie() const;
1400b57cec5SDimitry Andric    basic_ostream<charT,traits>* tie(basic_ostream<charT,traits>* tiestr);
1410b57cec5SDimitry Andric
1420b57cec5SDimitry Andric    basic_streambuf<charT,traits>* rdbuf() const;
1430b57cec5SDimitry Andric    basic_streambuf<charT,traits>* rdbuf(basic_streambuf<charT,traits>* sb);
1440b57cec5SDimitry Andric
1450b57cec5SDimitry Andric    basic_ios& copyfmt(const basic_ios& rhs);
1460b57cec5SDimitry Andric
1470b57cec5SDimitry Andric    char_type fill() const;
1480b57cec5SDimitry Andric    char_type fill(char_type ch);
1490b57cec5SDimitry Andric
1500b57cec5SDimitry Andric    locale imbue(const locale& loc);
1510b57cec5SDimitry Andric
1520b57cec5SDimitry Andric    char narrow(char_type c, char dfault) const;
1530b57cec5SDimitry Andric    char_type widen(char c) const;
1540b57cec5SDimitry Andric
1550b57cec5SDimitry Andric    basic_ios(const basic_ios& ) = delete;
1560b57cec5SDimitry Andric    basic_ios& operator=(const basic_ios&) = delete;
1570b57cec5SDimitry Andric
1580b57cec5SDimitry Andricprotected:
1590b57cec5SDimitry Andric    basic_ios();
1600b57cec5SDimitry Andric    void init(basic_streambuf<charT,traits>* sb);
1610b57cec5SDimitry Andric    void move(basic_ios& rhs);
1620b57cec5SDimitry Andric    void swap(basic_ios& rhs) noexcept;
1630b57cec5SDimitry Andric    void set_rdbuf(basic_streambuf<charT, traits>* sb);
1640b57cec5SDimitry Andric};
1650b57cec5SDimitry Andric
1660b57cec5SDimitry Andric// 27.5.5, manipulators:
1670b57cec5SDimitry Andricios_base& boolalpha (ios_base& str);
1680b57cec5SDimitry Andricios_base& noboolalpha(ios_base& str);
1690b57cec5SDimitry Andricios_base& showbase (ios_base& str);
1700b57cec5SDimitry Andricios_base& noshowbase (ios_base& str);
1710b57cec5SDimitry Andricios_base& showpoint (ios_base& str);
1720b57cec5SDimitry Andricios_base& noshowpoint(ios_base& str);
1730b57cec5SDimitry Andricios_base& showpos (ios_base& str);
1740b57cec5SDimitry Andricios_base& noshowpos (ios_base& str);
1750b57cec5SDimitry Andricios_base& skipws (ios_base& str);
1760b57cec5SDimitry Andricios_base& noskipws (ios_base& str);
1770b57cec5SDimitry Andricios_base& uppercase (ios_base& str);
1780b57cec5SDimitry Andricios_base& nouppercase(ios_base& str);
1790b57cec5SDimitry Andricios_base& unitbuf (ios_base& str);
1800b57cec5SDimitry Andricios_base& nounitbuf (ios_base& str);
1810b57cec5SDimitry Andric
1820b57cec5SDimitry Andric// 27.5.5.2 adjustfield:
1830b57cec5SDimitry Andricios_base& internal (ios_base& str);
1840b57cec5SDimitry Andricios_base& left (ios_base& str);
1850b57cec5SDimitry Andricios_base& right (ios_base& str);
1860b57cec5SDimitry Andric
1870b57cec5SDimitry Andric// 27.5.5.3 basefield:
1880b57cec5SDimitry Andricios_base& dec (ios_base& str);
1890b57cec5SDimitry Andricios_base& hex (ios_base& str);
1900b57cec5SDimitry Andricios_base& oct (ios_base& str);
1910b57cec5SDimitry Andric
1920b57cec5SDimitry Andric// 27.5.5.4 floatfield:
1930b57cec5SDimitry Andricios_base& fixed (ios_base& str);
1940b57cec5SDimitry Andricios_base& scientific (ios_base& str);
1950b57cec5SDimitry Andricios_base& hexfloat (ios_base& str);
1960b57cec5SDimitry Andricios_base& defaultfloat(ios_base& str);
1970b57cec5SDimitry Andric
1980b57cec5SDimitry Andric// 27.5.5.5 error reporting:
1990b57cec5SDimitry Andricenum class io_errc
2000b57cec5SDimitry Andric{
2010b57cec5SDimitry Andric    stream = 1
2020b57cec5SDimitry Andric};
2030b57cec5SDimitry Andric
2040b57cec5SDimitry Andricconcept_map ErrorCodeEnum<io_errc> { };
2050b57cec5SDimitry Andricerror_code make_error_code(io_errc e) noexcept;
2060b57cec5SDimitry Andricerror_condition make_error_condition(io_errc e) noexcept;
2070b57cec5SDimitry Andricstorage-class-specifier const error_category& iostream_category() noexcept;
2080b57cec5SDimitry Andric
2090b57cec5SDimitry Andric}  // std
2100b57cec5SDimitry Andric
2110b57cec5SDimitry Andric*/
2120b57cec5SDimitry Andric
2130b57cec5SDimitry Andric#include <__config>
21481ad6265SDimitry Andric
21581ad6265SDimitry Andric#if defined(_LIBCPP_HAS_NO_LOCALIZATION)
21681ad6265SDimitry Andric#   error "The iostreams library is not supported since libc++ has been configured without support for localization."
21781ad6265SDimitry Andric#endif
21881ad6265SDimitry Andric
21981ad6265SDimitry Andric#include <__assert> // all public C++ headers provide the assertion handler
22081ad6265SDimitry Andric#include <__ios/fpos.h>
2210b57cec5SDimitry Andric#include <__locale>
22281ad6265SDimitry Andric#include <__utility/swap.h>
2230b57cec5SDimitry Andric#include <system_error>
22404eeddc0SDimitry Andric#include <version>
2250b57cec5SDimitry Andric
22681ad6265SDimitry Andric// standard-mandated includes
227*bdd1243dSDimitry Andric
228*bdd1243dSDimitry Andric// [ios.syn]
22981ad6265SDimitry Andric#include <iosfwd>
23081ad6265SDimitry Andric
2310b57cec5SDimitry Andric#if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER)
2320b57cec5SDimitry Andric#include <atomic>     // for __xindex_
2330b57cec5SDimitry Andric#endif
2340b57cec5SDimitry Andric
2350b57cec5SDimitry Andric#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
2360b57cec5SDimitry Andric#  pragma GCC system_header
2370b57cec5SDimitry Andric#endif
2380b57cec5SDimitry Andric
2390b57cec5SDimitry Andric_LIBCPP_BEGIN_NAMESPACE_STD
2400b57cec5SDimitry Andric
2410b57cec5SDimitry Andrictypedef ptrdiff_t streamsize;
2420b57cec5SDimitry Andric
2430b57cec5SDimitry Andricclass _LIBCPP_TYPE_VIS ios_base
2440b57cec5SDimitry Andric{
2450b57cec5SDimitry Andricpublic:
2460b57cec5SDimitry Andric    class _LIBCPP_EXCEPTION_ABI failure;
2470b57cec5SDimitry Andric
2480b57cec5SDimitry Andric    typedef unsigned int fmtflags;
2490b57cec5SDimitry Andric    static const fmtflags boolalpha   = 0x0001;
2500b57cec5SDimitry Andric    static const fmtflags dec         = 0x0002;
2510b57cec5SDimitry Andric    static const fmtflags fixed       = 0x0004;
2520b57cec5SDimitry Andric    static const fmtflags hex         = 0x0008;
2530b57cec5SDimitry Andric    static const fmtflags internal    = 0x0010;
2540b57cec5SDimitry Andric    static const fmtflags left        = 0x0020;
2550b57cec5SDimitry Andric    static const fmtflags oct         = 0x0040;
2560b57cec5SDimitry Andric    static const fmtflags right       = 0x0080;
2570b57cec5SDimitry Andric    static const fmtflags scientific  = 0x0100;
2580b57cec5SDimitry Andric    static const fmtflags showbase    = 0x0200;
2590b57cec5SDimitry Andric    static const fmtflags showpoint   = 0x0400;
2600b57cec5SDimitry Andric    static const fmtflags showpos     = 0x0800;
2610b57cec5SDimitry Andric    static const fmtflags skipws      = 0x1000;
2620b57cec5SDimitry Andric    static const fmtflags unitbuf     = 0x2000;
2630b57cec5SDimitry Andric    static const fmtflags uppercase   = 0x4000;
2640b57cec5SDimitry Andric    static const fmtflags adjustfield = left | right | internal;
2650b57cec5SDimitry Andric    static const fmtflags basefield   = dec | oct | hex;
2660b57cec5SDimitry Andric    static const fmtflags floatfield  = scientific | fixed;
2670b57cec5SDimitry Andric
2680b57cec5SDimitry Andric    typedef unsigned int iostate;
2690b57cec5SDimitry Andric    static const iostate badbit  = 0x1;
2700b57cec5SDimitry Andric    static const iostate eofbit  = 0x2;
2710b57cec5SDimitry Andric    static const iostate failbit = 0x4;
2720b57cec5SDimitry Andric    static const iostate goodbit = 0x0;
2730b57cec5SDimitry Andric
2740b57cec5SDimitry Andric    typedef unsigned int openmode;
2750b57cec5SDimitry Andric    static const openmode app    = 0x01;
2760b57cec5SDimitry Andric    static const openmode ate    = 0x02;
2770b57cec5SDimitry Andric    static const openmode binary = 0x04;
2780b57cec5SDimitry Andric    static const openmode in     = 0x08;
2790b57cec5SDimitry Andric    static const openmode out    = 0x10;
2800b57cec5SDimitry Andric    static const openmode trunc  = 0x20;
2810b57cec5SDimitry Andric
2820b57cec5SDimitry Andric    enum seekdir {beg, cur, end};
2830b57cec5SDimitry Andric
2840b57cec5SDimitry Andric#if _LIBCPP_STD_VER <= 14
2850b57cec5SDimitry Andric    typedef iostate      io_state;
2860b57cec5SDimitry Andric    typedef openmode     open_mode;
2870b57cec5SDimitry Andric    typedef seekdir      seek_dir;
2880b57cec5SDimitry Andric
2890b57cec5SDimitry Andric    typedef _VSTD::streamoff streamoff;
2900b57cec5SDimitry Andric    typedef _VSTD::streampos streampos;
2910b57cec5SDimitry Andric#endif
2920b57cec5SDimitry Andric
2930b57cec5SDimitry Andric    class _LIBCPP_TYPE_VIS Init;
2940b57cec5SDimitry Andric
2950b57cec5SDimitry Andric    // 27.5.2.2 fmtflags state:
2960b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY fmtflags flags() const;
2970b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY fmtflags flags(fmtflags __fmtfl);
2980b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl);
2990b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY fmtflags setf(fmtflags __fmtfl, fmtflags __mask);
3000b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void unsetf(fmtflags __mask);
3010b57cec5SDimitry Andric
3020b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY streamsize precision() const;
3030b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY streamsize precision(streamsize __prec);
3040b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY streamsize width() const;
3050b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY streamsize width(streamsize __wide);
3060b57cec5SDimitry Andric
3070b57cec5SDimitry Andric    // 27.5.2.3 locales:
3080b57cec5SDimitry Andric    locale imbue(const locale& __loc);
3090b57cec5SDimitry Andric    locale getloc() const;
3100b57cec5SDimitry Andric
3110b57cec5SDimitry Andric    // 27.5.2.5 storage:
3120b57cec5SDimitry Andric    static int xalloc();
3130b57cec5SDimitry Andric    long& iword(int __index);
3140b57cec5SDimitry Andric    void*& pword(int __index);
3150b57cec5SDimitry Andric
3160b57cec5SDimitry Andric    // destructor
3170b57cec5SDimitry Andric    virtual ~ios_base();
3180b57cec5SDimitry Andric
3190b57cec5SDimitry Andric    // 27.5.2.6 callbacks;
3200b57cec5SDimitry Andric    enum event { erase_event, imbue_event, copyfmt_event };
3210b57cec5SDimitry Andric    typedef void (*event_callback)(event, ios_base&, int __index);
3220b57cec5SDimitry Andric    void register_callback(event_callback __fn, int __index);
3230b57cec5SDimitry Andric
3240eae32dcSDimitry Andric    ios_base(const ios_base&) = delete;
3250eae32dcSDimitry Andric    ios_base& operator=(const ios_base&) = delete;
3260b57cec5SDimitry Andric
3270b57cec5SDimitry Andric    static bool sync_with_stdio(bool __sync = true);
3280b57cec5SDimitry Andric
3290b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY iostate rdstate() const;
3300b57cec5SDimitry Andric    void clear(iostate __state = goodbit);
3310b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void setstate(iostate __state);
3320b57cec5SDimitry Andric
3330b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool good() const;
3340b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool eof() const;
3350b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool fail() const;
3360b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool bad() const;
3370b57cec5SDimitry Andric
3380b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY iostate exceptions() const;
3390b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void exceptions(iostate __iostate);
3400b57cec5SDimitry Andric
3410b57cec5SDimitry Andric    void __set_badbit_and_consider_rethrow();
3420b57cec5SDimitry Andric    void __set_failbit_and_consider_rethrow();
3430b57cec5SDimitry Andric
3440b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
3450b57cec5SDimitry Andric    void __setstate_nothrow(iostate __state)
3460b57cec5SDimitry Andric    {
3470b57cec5SDimitry Andric        if (__rdbuf_)
3480b57cec5SDimitry Andric            __rdstate_ |= __state;
3490b57cec5SDimitry Andric        else
3500b57cec5SDimitry Andric            __rdstate_ |= __state | ios_base::badbit;
3510b57cec5SDimitry Andric    }
3520b57cec5SDimitry Andric
3530b57cec5SDimitry Andricprotected:
3540b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
3550b57cec5SDimitry Andric    ios_base() {// purposefully does no initialization
3560b57cec5SDimitry Andric               }
3570b57cec5SDimitry Andric
3580b57cec5SDimitry Andric    void init(void* __sb);
3590b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void* rdbuf() const {return __rdbuf_;}
3600b57cec5SDimitry Andric
3610b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
3620b57cec5SDimitry Andric    void rdbuf(void* __sb)
3630b57cec5SDimitry Andric    {
3640b57cec5SDimitry Andric        __rdbuf_ = __sb;
3650b57cec5SDimitry Andric        clear();
3660b57cec5SDimitry Andric    }
3670b57cec5SDimitry Andric
3680b57cec5SDimitry Andric    void __call_callbacks(event);
3690b57cec5SDimitry Andric    void copyfmt(const ios_base&);
3700b57cec5SDimitry Andric    void move(ios_base&);
3710b57cec5SDimitry Andric    void swap(ios_base&) _NOEXCEPT;
3720b57cec5SDimitry Andric
3730b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
3740b57cec5SDimitry Andric    void set_rdbuf(void* __sb)
3750b57cec5SDimitry Andric    {
3760b57cec5SDimitry Andric        __rdbuf_ = __sb;
3770b57cec5SDimitry Andric    }
3780b57cec5SDimitry Andric
3790b57cec5SDimitry Andricprivate:
3800b57cec5SDimitry Andric    // All data members must be scalars
3810b57cec5SDimitry Andric    fmtflags        __fmtflags_;
3820b57cec5SDimitry Andric    streamsize      __precision_;
3830b57cec5SDimitry Andric    streamsize      __width_;
3840b57cec5SDimitry Andric    iostate         __rdstate_;
3850b57cec5SDimitry Andric    iostate         __exceptions_;
3860b57cec5SDimitry Andric    void*           __rdbuf_;
3870b57cec5SDimitry Andric    void*           __loc_;
3880b57cec5SDimitry Andric    event_callback* __fn_;
3890b57cec5SDimitry Andric    int*            __index_;
3900b57cec5SDimitry Andric    size_t          __event_size_;
3910b57cec5SDimitry Andric    size_t          __event_cap_;
3920b57cec5SDimitry Andric// TODO(EricWF): Enable this for both Clang and GCC. Currently it is only
3930b57cec5SDimitry Andric// enabled with clang.
3940b57cec5SDimitry Andric#if defined(_LIBCPP_HAS_C_ATOMIC_IMP) && !defined(_LIBCPP_HAS_NO_THREADS)
3950b57cec5SDimitry Andric    static atomic<int> __xindex_;
3960b57cec5SDimitry Andric#else
3970b57cec5SDimitry Andric    static int      __xindex_;
3980b57cec5SDimitry Andric#endif
3990b57cec5SDimitry Andric    long*           __iarray_;
4000b57cec5SDimitry Andric    size_t          __iarray_size_;
4010b57cec5SDimitry Andric    size_t          __iarray_cap_;
4020b57cec5SDimitry Andric    void**          __parray_;
4030b57cec5SDimitry Andric    size_t          __parray_size_;
4040b57cec5SDimitry Andric    size_t          __parray_cap_;
4050b57cec5SDimitry Andric};
4060b57cec5SDimitry Andric
4070b57cec5SDimitry Andric//enum class io_errc
4080b57cec5SDimitry Andric_LIBCPP_DECLARE_STRONG_ENUM(io_errc)
4090b57cec5SDimitry Andric{
4100b57cec5SDimitry Andric    stream = 1
4110b57cec5SDimitry Andric};
4120b57cec5SDimitry Andric_LIBCPP_DECLARE_STRONG_ENUM_EPILOG(io_errc)
4130b57cec5SDimitry Andric
4140b57cec5SDimitry Andrictemplate <>
4150b57cec5SDimitry Andricstruct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc> : public true_type { };
4160b57cec5SDimitry Andric
41781ad6265SDimitry Andric#ifdef _LIBCPP_CXX03_LANG
4180b57cec5SDimitry Andrictemplate <>
4190b57cec5SDimitry Andricstruct _LIBCPP_TEMPLATE_VIS is_error_code_enum<io_errc::__lx> : public true_type { };
4200b57cec5SDimitry Andric#endif
4210b57cec5SDimitry Andric
4220b57cec5SDimitry Andric_LIBCPP_FUNC_VIS
4230b57cec5SDimitry Andricconst error_category& iostream_category() _NOEXCEPT;
4240b57cec5SDimitry Andric
4250b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
4260b57cec5SDimitry Andricerror_code
4270b57cec5SDimitry Andricmake_error_code(io_errc __e) _NOEXCEPT
4280b57cec5SDimitry Andric{
4290b57cec5SDimitry Andric    return error_code(static_cast<int>(__e), iostream_category());
4300b57cec5SDimitry Andric}
4310b57cec5SDimitry Andric
4320b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
4330b57cec5SDimitry Andricerror_condition
4340b57cec5SDimitry Andricmake_error_condition(io_errc __e) _NOEXCEPT
4350b57cec5SDimitry Andric{
4360b57cec5SDimitry Andric    return error_condition(static_cast<int>(__e), iostream_category());
4370b57cec5SDimitry Andric}
4380b57cec5SDimitry Andric
4390b57cec5SDimitry Andricclass _LIBCPP_EXCEPTION_ABI ios_base::failure
4400b57cec5SDimitry Andric    : public system_error
4410b57cec5SDimitry Andric{
4420b57cec5SDimitry Andricpublic:
4430b57cec5SDimitry Andric    explicit failure(const string& __msg, const error_code& __ec = io_errc::stream);
4440b57cec5SDimitry Andric    explicit failure(const char* __msg, const error_code& __ec = io_errc::stream);
4459ec406dcSDimitry Andric    failure(const failure&) _NOEXCEPT = default;
446*bdd1243dSDimitry Andric    ~failure() _NOEXCEPT override;
4470b57cec5SDimitry Andric};
4480b57cec5SDimitry Andric
4490b57cec5SDimitry Andric_LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY
4500b57cec5SDimitry Andricvoid __throw_failure(char const* __msg) {
4510b57cec5SDimitry Andric#ifndef _LIBCPP_NO_EXCEPTIONS
4520b57cec5SDimitry Andric    throw ios_base::failure(__msg);
4530b57cec5SDimitry Andric#else
4540b57cec5SDimitry Andric    ((void)__msg);
4550b57cec5SDimitry Andric    _VSTD::abort();
4560b57cec5SDimitry Andric#endif
4570b57cec5SDimitry Andric}
4580b57cec5SDimitry Andric
4590b57cec5SDimitry Andricclass _LIBCPP_TYPE_VIS ios_base::Init
4600b57cec5SDimitry Andric{
4610b57cec5SDimitry Andricpublic:
4620b57cec5SDimitry Andric    Init();
4630b57cec5SDimitry Andric    ~Init();
4640b57cec5SDimitry Andric};
4650b57cec5SDimitry Andric
4660b57cec5SDimitry Andric// fmtflags
4670b57cec5SDimitry Andric
4680b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
4690b57cec5SDimitry Andricios_base::fmtflags
4700b57cec5SDimitry Andricios_base::flags() const
4710b57cec5SDimitry Andric{
4720b57cec5SDimitry Andric    return __fmtflags_;
4730b57cec5SDimitry Andric}
4740b57cec5SDimitry Andric
4750b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
4760b57cec5SDimitry Andricios_base::fmtflags
4770b57cec5SDimitry Andricios_base::flags(fmtflags __fmtfl)
4780b57cec5SDimitry Andric{
4790b57cec5SDimitry Andric    fmtflags __r = __fmtflags_;
4800b57cec5SDimitry Andric    __fmtflags_ = __fmtfl;
4810b57cec5SDimitry Andric    return __r;
4820b57cec5SDimitry Andric}
4830b57cec5SDimitry Andric
4840b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
4850b57cec5SDimitry Andricios_base::fmtflags
4860b57cec5SDimitry Andricios_base::setf(fmtflags __fmtfl)
4870b57cec5SDimitry Andric{
4880b57cec5SDimitry Andric    fmtflags __r = __fmtflags_;
4890b57cec5SDimitry Andric    __fmtflags_ |= __fmtfl;
4900b57cec5SDimitry Andric    return __r;
4910b57cec5SDimitry Andric}
4920b57cec5SDimitry Andric
4930b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
4940b57cec5SDimitry Andricvoid
4950b57cec5SDimitry Andricios_base::unsetf(fmtflags __mask)
4960b57cec5SDimitry Andric{
4970b57cec5SDimitry Andric    __fmtflags_ &= ~__mask;
4980b57cec5SDimitry Andric}
4990b57cec5SDimitry Andric
5000b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5010b57cec5SDimitry Andricios_base::fmtflags
5020b57cec5SDimitry Andricios_base::setf(fmtflags __fmtfl, fmtflags __mask)
5030b57cec5SDimitry Andric{
5040b57cec5SDimitry Andric    fmtflags __r = __fmtflags_;
5050b57cec5SDimitry Andric    unsetf(__mask);
5060b57cec5SDimitry Andric    __fmtflags_ |= __fmtfl & __mask;
5070b57cec5SDimitry Andric    return __r;
5080b57cec5SDimitry Andric}
5090b57cec5SDimitry Andric
5100b57cec5SDimitry Andric// precision
5110b57cec5SDimitry Andric
5120b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5130b57cec5SDimitry Andricstreamsize
5140b57cec5SDimitry Andricios_base::precision() const
5150b57cec5SDimitry Andric{
5160b57cec5SDimitry Andric    return __precision_;
5170b57cec5SDimitry Andric}
5180b57cec5SDimitry Andric
5190b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5200b57cec5SDimitry Andricstreamsize
5210b57cec5SDimitry Andricios_base::precision(streamsize __prec)
5220b57cec5SDimitry Andric{
5230b57cec5SDimitry Andric    streamsize __r = __precision_;
5240b57cec5SDimitry Andric    __precision_ = __prec;
5250b57cec5SDimitry Andric    return __r;
5260b57cec5SDimitry Andric}
5270b57cec5SDimitry Andric
5280b57cec5SDimitry Andric// width
5290b57cec5SDimitry Andric
5300b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5310b57cec5SDimitry Andricstreamsize
5320b57cec5SDimitry Andricios_base::width() const
5330b57cec5SDimitry Andric{
5340b57cec5SDimitry Andric    return __width_;
5350b57cec5SDimitry Andric}
5360b57cec5SDimitry Andric
5370b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5380b57cec5SDimitry Andricstreamsize
5390b57cec5SDimitry Andricios_base::width(streamsize __wide)
5400b57cec5SDimitry Andric{
5410b57cec5SDimitry Andric    streamsize __r = __width_;
5420b57cec5SDimitry Andric    __width_ = __wide;
5430b57cec5SDimitry Andric    return __r;
5440b57cec5SDimitry Andric}
5450b57cec5SDimitry Andric
5460b57cec5SDimitry Andric// iostate
5470b57cec5SDimitry Andric
5480b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5490b57cec5SDimitry Andricios_base::iostate
5500b57cec5SDimitry Andricios_base::rdstate() const
5510b57cec5SDimitry Andric{
5520b57cec5SDimitry Andric    return __rdstate_;
5530b57cec5SDimitry Andric}
5540b57cec5SDimitry Andric
5550b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5560b57cec5SDimitry Andricvoid
5570b57cec5SDimitry Andricios_base::setstate(iostate __state)
5580b57cec5SDimitry Andric{
5590b57cec5SDimitry Andric    clear(__rdstate_ | __state);
5600b57cec5SDimitry Andric}
5610b57cec5SDimitry Andric
5620b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5630b57cec5SDimitry Andricbool
5640b57cec5SDimitry Andricios_base::good() const
5650b57cec5SDimitry Andric{
5660b57cec5SDimitry Andric    return __rdstate_ == 0;
5670b57cec5SDimitry Andric}
5680b57cec5SDimitry Andric
5690b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5700b57cec5SDimitry Andricbool
5710b57cec5SDimitry Andricios_base::eof() const
5720b57cec5SDimitry Andric{
5730b57cec5SDimitry Andric    return (__rdstate_ & eofbit) != 0;
5740b57cec5SDimitry Andric}
5750b57cec5SDimitry Andric
5760b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5770b57cec5SDimitry Andricbool
5780b57cec5SDimitry Andricios_base::fail() const
5790b57cec5SDimitry Andric{
5800b57cec5SDimitry Andric    return (__rdstate_ & (failbit | badbit)) != 0;
5810b57cec5SDimitry Andric}
5820b57cec5SDimitry Andric
5830b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5840b57cec5SDimitry Andricbool
5850b57cec5SDimitry Andricios_base::bad() const
5860b57cec5SDimitry Andric{
5870b57cec5SDimitry Andric    return (__rdstate_ & badbit) != 0;
5880b57cec5SDimitry Andric}
5890b57cec5SDimitry Andric
5900b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5910b57cec5SDimitry Andricios_base::iostate
5920b57cec5SDimitry Andricios_base::exceptions() const
5930b57cec5SDimitry Andric{
5940b57cec5SDimitry Andric    return __exceptions_;
5950b57cec5SDimitry Andric}
5960b57cec5SDimitry Andric
5970b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
5980b57cec5SDimitry Andricvoid
5990b57cec5SDimitry Andricios_base::exceptions(iostate __iostate)
6000b57cec5SDimitry Andric{
6010b57cec5SDimitry Andric    __exceptions_ = __iostate;
6020b57cec5SDimitry Andric    clear(__rdstate_);
6030b57cec5SDimitry Andric}
6040b57cec5SDimitry Andric
6050b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
6060b57cec5SDimitry Andricclass _LIBCPP_TEMPLATE_VIS basic_ios
6070b57cec5SDimitry Andric    : public ios_base
6080b57cec5SDimitry Andric{
6090b57cec5SDimitry Andricpublic:
6100b57cec5SDimitry Andric    // types:
6110b57cec5SDimitry Andric    typedef _CharT char_type;
6120b57cec5SDimitry Andric    typedef _Traits traits_type;
6130b57cec5SDimitry Andric
6140b57cec5SDimitry Andric    typedef typename traits_type::int_type int_type;
6150b57cec5SDimitry Andric    typedef typename traits_type::pos_type pos_type;
6160b57cec5SDimitry Andric    typedef typename traits_type::off_type off_type;
6170b57cec5SDimitry Andric
6180b57cec5SDimitry Andric    static_assert((is_same<_CharT, typename traits_type::char_type>::value),
6190b57cec5SDimitry Andric                  "traits_type::char_type must be the same type as CharT");
6200b57cec5SDimitry Andric
6216e75b2fbSDimitry Andric#ifdef _LIBCPP_CXX03_LANG
6226e75b2fbSDimitry Andric    // Preserve the ability to compare with literal 0,
6236e75b2fbSDimitry Andric    // and implicitly convert to bool, but not implicitly convert to int.
6246e75b2fbSDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6256e75b2fbSDimitry Andric    operator void*() const {return fail() ? nullptr : (void*)this;}
6266e75b2fbSDimitry Andric#else
6270b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
628fe6060f1SDimitry Andric    explicit operator bool() const {return !fail();}
6296e75b2fbSDimitry Andric#endif
6300b57cec5SDimitry Andric
6310b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool operator!() const    {return  fail();}
6320b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY iostate rdstate() const   {return ios_base::rdstate();}
6330b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void clear(iostate __state = goodbit) {ios_base::clear(__state);}
6340b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void setstate(iostate __state) {ios_base::setstate(__state);}
6350b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool good() const {return ios_base::good();}
6360b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool eof() const  {return ios_base::eof();}
6370b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool fail() const {return ios_base::fail();}
6380b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY bool bad() const  {return ios_base::bad();}
6390b57cec5SDimitry Andric
6400b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY iostate exceptions() const {return ios_base::exceptions();}
6410b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY void exceptions(iostate __iostate) {ios_base::exceptions(__iostate);}
6420b57cec5SDimitry Andric
6430b57cec5SDimitry Andric    // 27.5.4.1 Constructor/destructor:
6440b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6450b57cec5SDimitry Andric    explicit basic_ios(basic_streambuf<char_type,traits_type>* __sb);
646*bdd1243dSDimitry Andric    ~basic_ios() override;
6470b57cec5SDimitry Andric
6480b57cec5SDimitry Andric    // 27.5.4.2 Members:
6490b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6500b57cec5SDimitry Andric    basic_ostream<char_type, traits_type>* tie() const;
6510b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6520b57cec5SDimitry Andric    basic_ostream<char_type, traits_type>* tie(basic_ostream<char_type, traits_type>* __tiestr);
6530b57cec5SDimitry Andric
6540b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6550b57cec5SDimitry Andric    basic_streambuf<char_type, traits_type>* rdbuf() const;
6560b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6570b57cec5SDimitry Andric    basic_streambuf<char_type, traits_type>* rdbuf(basic_streambuf<char_type, traits_type>* __sb);
6580b57cec5SDimitry Andric
6590b57cec5SDimitry Andric    basic_ios& copyfmt(const basic_ios& __rhs);
6600b57cec5SDimitry Andric
6610b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6620b57cec5SDimitry Andric    char_type fill() const;
6630b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6640b57cec5SDimitry Andric    char_type fill(char_type __ch);
6650b57cec5SDimitry Andric
6660b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6670b57cec5SDimitry Andric    locale imbue(const locale& __loc);
6680b57cec5SDimitry Andric
6690b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6700b57cec5SDimitry Andric    char narrow(char_type __c, char __dfault) const;
6710b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6720b57cec5SDimitry Andric    char_type widen(char __c) const;
6730b57cec5SDimitry Andric
6740b57cec5SDimitry Andricprotected:
6750b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6760b57cec5SDimitry Andric    basic_ios() {// purposefully does no initialization
6770b57cec5SDimitry Andric                }
6780b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6790b57cec5SDimitry Andric    void init(basic_streambuf<char_type, traits_type>* __sb);
6800b57cec5SDimitry Andric
6810b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6820b57cec5SDimitry Andric    void move(basic_ios& __rhs);
6830b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6840b57cec5SDimitry Andric    void move(basic_ios&& __rhs) {move(__rhs);}
6850b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6860b57cec5SDimitry Andric    void swap(basic_ios& __rhs) _NOEXCEPT;
6870b57cec5SDimitry Andric    _LIBCPP_INLINE_VISIBILITY
6880b57cec5SDimitry Andric    void set_rdbuf(basic_streambuf<char_type, traits_type>* __sb);
6890b57cec5SDimitry Andricprivate:
6900b57cec5SDimitry Andric    basic_ostream<char_type, traits_type>* __tie_;
6910b57cec5SDimitry Andric    mutable int_type __fill_;
6920b57cec5SDimitry Andric};
6930b57cec5SDimitry Andric
6940b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
6950b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
6960b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::basic_ios(basic_streambuf<char_type,traits_type>* __sb)
6970b57cec5SDimitry Andric{
6980b57cec5SDimitry Andric    init(__sb);
6990b57cec5SDimitry Andric}
7000b57cec5SDimitry Andric
7010b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7020b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::~basic_ios()
7030b57cec5SDimitry Andric{
7040b57cec5SDimitry Andric}
7050b57cec5SDimitry Andric
7060b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7070b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7080b57cec5SDimitry Andricvoid
7090b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::init(basic_streambuf<char_type, traits_type>* __sb)
7100b57cec5SDimitry Andric{
7110b57cec5SDimitry Andric    ios_base::init(__sb);
712e8d8bef9SDimitry Andric    __tie_ = nullptr;
7130b57cec5SDimitry Andric    __fill_ = traits_type::eof();
7140b57cec5SDimitry Andric}
7150b57cec5SDimitry Andric
7160b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7170b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7180b57cec5SDimitry Andricbasic_ostream<_CharT, _Traits>*
7190b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::tie() const
7200b57cec5SDimitry Andric{
7210b57cec5SDimitry Andric    return __tie_;
7220b57cec5SDimitry Andric}
7230b57cec5SDimitry Andric
7240b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7250b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7260b57cec5SDimitry Andricbasic_ostream<_CharT, _Traits>*
7270b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::tie(basic_ostream<char_type, traits_type>* __tiestr)
7280b57cec5SDimitry Andric{
7290b57cec5SDimitry Andric    basic_ostream<char_type, traits_type>* __r = __tie_;
7300b57cec5SDimitry Andric    __tie_ = __tiestr;
7310b57cec5SDimitry Andric    return __r;
7320b57cec5SDimitry Andric}
7330b57cec5SDimitry Andric
7340b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7350b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7360b57cec5SDimitry Andricbasic_streambuf<_CharT, _Traits>*
7370b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::rdbuf() const
7380b57cec5SDimitry Andric{
7390b57cec5SDimitry Andric    return static_cast<basic_streambuf<char_type, traits_type>*>(ios_base::rdbuf());
7400b57cec5SDimitry Andric}
7410b57cec5SDimitry Andric
7420b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7430b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7440b57cec5SDimitry Andricbasic_streambuf<_CharT, _Traits>*
7450b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::rdbuf(basic_streambuf<char_type, traits_type>* __sb)
7460b57cec5SDimitry Andric{
7470b57cec5SDimitry Andric    basic_streambuf<char_type, traits_type>* __r = rdbuf();
7480b57cec5SDimitry Andric    ios_base::rdbuf(__sb);
7490b57cec5SDimitry Andric    return __r;
7500b57cec5SDimitry Andric}
7510b57cec5SDimitry Andric
7520b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7530b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7540b57cec5SDimitry Andriclocale
7550b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::imbue(const locale& __loc)
7560b57cec5SDimitry Andric{
7570b57cec5SDimitry Andric    locale __r = getloc();
7580b57cec5SDimitry Andric    ios_base::imbue(__loc);
7590b57cec5SDimitry Andric    if (rdbuf())
7600b57cec5SDimitry Andric        rdbuf()->pubimbue(__loc);
7610b57cec5SDimitry Andric    return __r;
7620b57cec5SDimitry Andric}
7630b57cec5SDimitry Andric
7640b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7650b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7660b57cec5SDimitry Andricchar
7670b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::narrow(char_type __c, char __dfault) const
7680b57cec5SDimitry Andric{
769*bdd1243dSDimitry Andric    return std::use_facet<ctype<char_type> >(getloc()).narrow(__c, __dfault);
7700b57cec5SDimitry Andric}
7710b57cec5SDimitry Andric
7720b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7730b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7740b57cec5SDimitry Andric_CharT
7750b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::widen(char __c) const
7760b57cec5SDimitry Andric{
777*bdd1243dSDimitry Andric    return std::use_facet<ctype<char_type> >(getloc()).widen(__c);
7780b57cec5SDimitry Andric}
7790b57cec5SDimitry Andric
7800b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7810b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7820b57cec5SDimitry Andric_CharT
7830b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::fill() const
7840b57cec5SDimitry Andric{
7850b57cec5SDimitry Andric    if (traits_type::eq_int_type(traits_type::eof(), __fill_))
7860b57cec5SDimitry Andric        __fill_ = widen(' ');
7870b57cec5SDimitry Andric    return __fill_;
7880b57cec5SDimitry Andric}
7890b57cec5SDimitry Andric
7900b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
7910b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
7920b57cec5SDimitry Andric_CharT
7930b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::fill(char_type __ch)
7940b57cec5SDimitry Andric{
79581ad6265SDimitry Andric    if (traits_type::eq_int_type(traits_type::eof(), __fill_))
79681ad6265SDimitry Andric        __fill_ = widen(' ');
7970b57cec5SDimitry Andric    char_type __r = __fill_;
7980b57cec5SDimitry Andric    __fill_ = __ch;
7990b57cec5SDimitry Andric    return __r;
8000b57cec5SDimitry Andric}
8010b57cec5SDimitry Andric
8020b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
8030b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>&
8040b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::copyfmt(const basic_ios& __rhs)
8050b57cec5SDimitry Andric{
8060b57cec5SDimitry Andric    if (this != &__rhs)
8070b57cec5SDimitry Andric    {
8080b57cec5SDimitry Andric        __call_callbacks(erase_event);
8090b57cec5SDimitry Andric        ios_base::copyfmt(__rhs);
8100b57cec5SDimitry Andric        __tie_ = __rhs.__tie_;
8110b57cec5SDimitry Andric        __fill_ = __rhs.__fill_;
8120b57cec5SDimitry Andric        __call_callbacks(copyfmt_event);
8130b57cec5SDimitry Andric        exceptions(__rhs.exceptions());
8140b57cec5SDimitry Andric    }
8150b57cec5SDimitry Andric    return *this;
8160b57cec5SDimitry Andric}
8170b57cec5SDimitry Andric
8180b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
8190b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
8200b57cec5SDimitry Andricvoid
8210b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::move(basic_ios& __rhs)
8220b57cec5SDimitry Andric{
8230b57cec5SDimitry Andric    ios_base::move(__rhs);
8240b57cec5SDimitry Andric    __tie_ = __rhs.__tie_;
825e8d8bef9SDimitry Andric    __rhs.__tie_ = nullptr;
8260b57cec5SDimitry Andric    __fill_ = __rhs.__fill_;
8270b57cec5SDimitry Andric}
8280b57cec5SDimitry Andric
8290b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
8300b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
8310b57cec5SDimitry Andricvoid
8320b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::swap(basic_ios& __rhs) _NOEXCEPT
8330b57cec5SDimitry Andric{
8340b57cec5SDimitry Andric    ios_base::swap(__rhs);
8350b57cec5SDimitry Andric    _VSTD::swap(__tie_, __rhs.__tie_);
8360b57cec5SDimitry Andric    _VSTD::swap(__fill_, __rhs.__fill_);
8370b57cec5SDimitry Andric}
8380b57cec5SDimitry Andric
8390b57cec5SDimitry Andrictemplate <class _CharT, class _Traits>
8400b57cec5SDimitry Andricinline _LIBCPP_INLINE_VISIBILITY
8410b57cec5SDimitry Andricvoid
8420b57cec5SDimitry Andricbasic_ios<_CharT, _Traits>::set_rdbuf(basic_streambuf<char_type, traits_type>* __sb)
8430b57cec5SDimitry Andric{
8440b57cec5SDimitry Andric    ios_base::set_rdbuf(__sb);
8450b57cec5SDimitry Andric}
8460b57cec5SDimitry Andric
847*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8480b57cec5SDimitry Andricios_base&
8490b57cec5SDimitry Andricboolalpha(ios_base& __str)
8500b57cec5SDimitry Andric{
8510b57cec5SDimitry Andric    __str.setf(ios_base::boolalpha);
8520b57cec5SDimitry Andric    return __str;
8530b57cec5SDimitry Andric}
8540b57cec5SDimitry Andric
855*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8560b57cec5SDimitry Andricios_base&
8570b57cec5SDimitry Andricnoboolalpha(ios_base& __str)
8580b57cec5SDimitry Andric{
8590b57cec5SDimitry Andric    __str.unsetf(ios_base::boolalpha);
8600b57cec5SDimitry Andric    return __str;
8610b57cec5SDimitry Andric}
8620b57cec5SDimitry Andric
863*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8640b57cec5SDimitry Andricios_base&
8650b57cec5SDimitry Andricshowbase(ios_base& __str)
8660b57cec5SDimitry Andric{
8670b57cec5SDimitry Andric    __str.setf(ios_base::showbase);
8680b57cec5SDimitry Andric    return __str;
8690b57cec5SDimitry Andric}
8700b57cec5SDimitry Andric
871*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8720b57cec5SDimitry Andricios_base&
8730b57cec5SDimitry Andricnoshowbase(ios_base& __str)
8740b57cec5SDimitry Andric{
8750b57cec5SDimitry Andric    __str.unsetf(ios_base::showbase);
8760b57cec5SDimitry Andric    return __str;
8770b57cec5SDimitry Andric}
8780b57cec5SDimitry Andric
879*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8800b57cec5SDimitry Andricios_base&
8810b57cec5SDimitry Andricshowpoint(ios_base& __str)
8820b57cec5SDimitry Andric{
8830b57cec5SDimitry Andric    __str.setf(ios_base::showpoint);
8840b57cec5SDimitry Andric    return __str;
8850b57cec5SDimitry Andric}
8860b57cec5SDimitry Andric
887*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8880b57cec5SDimitry Andricios_base&
8890b57cec5SDimitry Andricnoshowpoint(ios_base& __str)
8900b57cec5SDimitry Andric{
8910b57cec5SDimitry Andric    __str.unsetf(ios_base::showpoint);
8920b57cec5SDimitry Andric    return __str;
8930b57cec5SDimitry Andric}
8940b57cec5SDimitry Andric
895*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
8960b57cec5SDimitry Andricios_base&
8970b57cec5SDimitry Andricshowpos(ios_base& __str)
8980b57cec5SDimitry Andric{
8990b57cec5SDimitry Andric    __str.setf(ios_base::showpos);
9000b57cec5SDimitry Andric    return __str;
9010b57cec5SDimitry Andric}
9020b57cec5SDimitry Andric
903*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9040b57cec5SDimitry Andricios_base&
9050b57cec5SDimitry Andricnoshowpos(ios_base& __str)
9060b57cec5SDimitry Andric{
9070b57cec5SDimitry Andric    __str.unsetf(ios_base::showpos);
9080b57cec5SDimitry Andric    return __str;
9090b57cec5SDimitry Andric}
9100b57cec5SDimitry Andric
911*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9120b57cec5SDimitry Andricios_base&
9130b57cec5SDimitry Andricskipws(ios_base& __str)
9140b57cec5SDimitry Andric{
9150b57cec5SDimitry Andric    __str.setf(ios_base::skipws);
9160b57cec5SDimitry Andric    return __str;
9170b57cec5SDimitry Andric}
9180b57cec5SDimitry Andric
919*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9200b57cec5SDimitry Andricios_base&
9210b57cec5SDimitry Andricnoskipws(ios_base& __str)
9220b57cec5SDimitry Andric{
9230b57cec5SDimitry Andric    __str.unsetf(ios_base::skipws);
9240b57cec5SDimitry Andric    return __str;
9250b57cec5SDimitry Andric}
9260b57cec5SDimitry Andric
927*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9280b57cec5SDimitry Andricios_base&
9290b57cec5SDimitry Andricuppercase(ios_base& __str)
9300b57cec5SDimitry Andric{
9310b57cec5SDimitry Andric    __str.setf(ios_base::uppercase);
9320b57cec5SDimitry Andric    return __str;
9330b57cec5SDimitry Andric}
9340b57cec5SDimitry Andric
935*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9360b57cec5SDimitry Andricios_base&
9370b57cec5SDimitry Andricnouppercase(ios_base& __str)
9380b57cec5SDimitry Andric{
9390b57cec5SDimitry Andric    __str.unsetf(ios_base::uppercase);
9400b57cec5SDimitry Andric    return __str;
9410b57cec5SDimitry Andric}
9420b57cec5SDimitry Andric
943*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9440b57cec5SDimitry Andricios_base&
9450b57cec5SDimitry Andricunitbuf(ios_base& __str)
9460b57cec5SDimitry Andric{
9470b57cec5SDimitry Andric    __str.setf(ios_base::unitbuf);
9480b57cec5SDimitry Andric    return __str;
9490b57cec5SDimitry Andric}
9500b57cec5SDimitry Andric
951*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9520b57cec5SDimitry Andricios_base&
9530b57cec5SDimitry Andricnounitbuf(ios_base& __str)
9540b57cec5SDimitry Andric{
9550b57cec5SDimitry Andric    __str.unsetf(ios_base::unitbuf);
9560b57cec5SDimitry Andric    return __str;
9570b57cec5SDimitry Andric}
9580b57cec5SDimitry Andric
959*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9600b57cec5SDimitry Andricios_base&
9610b57cec5SDimitry Andricinternal(ios_base& __str)
9620b57cec5SDimitry Andric{
9630b57cec5SDimitry Andric    __str.setf(ios_base::internal, ios_base::adjustfield);
9640b57cec5SDimitry Andric    return __str;
9650b57cec5SDimitry Andric}
9660b57cec5SDimitry Andric
967*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9680b57cec5SDimitry Andricios_base&
9690b57cec5SDimitry Andricleft(ios_base& __str)
9700b57cec5SDimitry Andric{
9710b57cec5SDimitry Andric    __str.setf(ios_base::left, ios_base::adjustfield);
9720b57cec5SDimitry Andric    return __str;
9730b57cec5SDimitry Andric}
9740b57cec5SDimitry Andric
975*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9760b57cec5SDimitry Andricios_base&
9770b57cec5SDimitry Andricright(ios_base& __str)
9780b57cec5SDimitry Andric{
9790b57cec5SDimitry Andric    __str.setf(ios_base::right, ios_base::adjustfield);
9800b57cec5SDimitry Andric    return __str;
9810b57cec5SDimitry Andric}
9820b57cec5SDimitry Andric
983*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9840b57cec5SDimitry Andricios_base&
9850b57cec5SDimitry Andricdec(ios_base& __str)
9860b57cec5SDimitry Andric{
9870b57cec5SDimitry Andric    __str.setf(ios_base::dec, ios_base::basefield);
9880b57cec5SDimitry Andric    return __str;
9890b57cec5SDimitry Andric}
9900b57cec5SDimitry Andric
991*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
9920b57cec5SDimitry Andricios_base&
9930b57cec5SDimitry Andrichex(ios_base& __str)
9940b57cec5SDimitry Andric{
9950b57cec5SDimitry Andric    __str.setf(ios_base::hex, ios_base::basefield);
9960b57cec5SDimitry Andric    return __str;
9970b57cec5SDimitry Andric}
9980b57cec5SDimitry Andric
999*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
10000b57cec5SDimitry Andricios_base&
10010b57cec5SDimitry Andricoct(ios_base& __str)
10020b57cec5SDimitry Andric{
10030b57cec5SDimitry Andric    __str.setf(ios_base::oct, ios_base::basefield);
10040b57cec5SDimitry Andric    return __str;
10050b57cec5SDimitry Andric}
10060b57cec5SDimitry Andric
1007*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
10080b57cec5SDimitry Andricios_base&
10090b57cec5SDimitry Andricfixed(ios_base& __str)
10100b57cec5SDimitry Andric{
10110b57cec5SDimitry Andric    __str.setf(ios_base::fixed, ios_base::floatfield);
10120b57cec5SDimitry Andric    return __str;
10130b57cec5SDimitry Andric}
10140b57cec5SDimitry Andric
1015*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
10160b57cec5SDimitry Andricios_base&
10170b57cec5SDimitry Andricscientific(ios_base& __str)
10180b57cec5SDimitry Andric{
10190b57cec5SDimitry Andric    __str.setf(ios_base::scientific, ios_base::floatfield);
10200b57cec5SDimitry Andric    return __str;
10210b57cec5SDimitry Andric}
10220b57cec5SDimitry Andric
1023*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
10240b57cec5SDimitry Andricios_base&
10250b57cec5SDimitry Andrichexfloat(ios_base& __str)
10260b57cec5SDimitry Andric{
10270b57cec5SDimitry Andric    __str.setf(ios_base::fixed | ios_base::scientific, ios_base::floatfield);
10280b57cec5SDimitry Andric    return __str;
10290b57cec5SDimitry Andric}
10300b57cec5SDimitry Andric
1031*bdd1243dSDimitry Andric_LIBCPP_HIDE_FROM_ABI inline
10320b57cec5SDimitry Andricios_base&
10330b57cec5SDimitry Andricdefaultfloat(ios_base& __str)
10340b57cec5SDimitry Andric{
10350b57cec5SDimitry Andric    __str.unsetf(ios_base::floatfield);
10360b57cec5SDimitry Andric    return __str;
10370b57cec5SDimitry Andric}
10380b57cec5SDimitry Andric
10390b57cec5SDimitry Andric_LIBCPP_END_NAMESPACE_STD
10400b57cec5SDimitry Andric
1041*bdd1243dSDimitry Andric#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20
1042*bdd1243dSDimitry Andric#  include <concepts>
1043*bdd1243dSDimitry Andric#  include <cstddef>
1044*bdd1243dSDimitry Andric#  include <cstdlib>
1045*bdd1243dSDimitry Andric#  include <cstring>
1046*bdd1243dSDimitry Andric#  include <initializer_list>
1047*bdd1243dSDimitry Andric#  include <limits>
1048*bdd1243dSDimitry Andric#  include <new>
1049*bdd1243dSDimitry Andric#  include <stdexcept>
1050*bdd1243dSDimitry Andric#  include <type_traits>
1051*bdd1243dSDimitry Andric#  include <typeinfo>
1052*bdd1243dSDimitry Andric#endif
1053*bdd1243dSDimitry Andric
10540b57cec5SDimitry Andric#endif // _LIBCPP_IOS
1055