39 #pragma GCC system_header
45 namespace std _GLIBCXX_VISIBILITY(default)
47 _GLIBCXX_BEGIN_NAMESPACE_VERSION
55 _S_boolalpha = 1L << 0,
59 _S_internal = 1L << 4,
63 _S_scientific = 1L << 8,
64 _S_showbase = 1L << 9,
65 _S_showpoint = 1L << 10,
66 _S_showpos = 1L << 11,
68 _S_unitbuf = 1L << 13,
69 _S_uppercase = 1L << 14,
70 _S_adjustfield = _S_left | _S_right | _S_internal,
71 _S_basefield = _S_dec | _S_oct | _S_hex,
72 _S_floatfield = _S_scientific | _S_fixed,
73 _S_ios_fmtflags_end = 1L << 16
76 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
77 operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
78 {
return _Ios_Fmtflags(static_cast<int>(__a) & static_cast<int>(__b)); }
80 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
81 operator|(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
82 {
return _Ios_Fmtflags(static_cast<int>(__a) | static_cast<int>(__b)); }
84 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
85 operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
86 {
return _Ios_Fmtflags(static_cast<int>(__a) ^ static_cast<int>(__b)); }
88 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
90 {
return _Ios_Fmtflags(~static_cast<int>(__a)); }
92 inline const _Ios_Fmtflags&
93 operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
94 {
return __a = __a | __b; }
96 inline const _Ios_Fmtflags&
97 operator&=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
98 {
return __a = __a & __b; }
100 inline const _Ios_Fmtflags&
101 operator^=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
102 {
return __a = __a ^ __b; }
113 _S_ios_openmode_end = 1L << 16
116 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
117 operator&(_Ios_Openmode __a, _Ios_Openmode __b)
118 {
return _Ios_Openmode(static_cast<int>(__a) & static_cast<int>(__b)); }
120 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
121 operator|(_Ios_Openmode __a, _Ios_Openmode __b)
122 {
return _Ios_Openmode(static_cast<int>(__a) | static_cast<int>(__b)); }
124 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
125 operator^(_Ios_Openmode __a, _Ios_Openmode __b)
126 {
return _Ios_Openmode(static_cast<int>(__a) ^ static_cast<int>(__b)); }
128 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
130 {
return _Ios_Openmode(~static_cast<int>(__a)); }
132 inline const _Ios_Openmode&
133 operator|=(_Ios_Openmode& __a, _Ios_Openmode __b)
134 {
return __a = __a | __b; }
136 inline const _Ios_Openmode&
137 operator&=(_Ios_Openmode& __a, _Ios_Openmode __b)
138 {
return __a = __a & __b; }
140 inline const _Ios_Openmode&
141 operator^=(_Ios_Openmode& __a, _Ios_Openmode __b)
142 {
return __a = __a ^ __b; }
150 _S_failbit = 1L << 2,
151 _S_ios_iostate_end = 1L << 16
154 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
155 operator&(_Ios_Iostate __a, _Ios_Iostate __b)
156 {
return _Ios_Iostate(static_cast<int>(__a) & static_cast<int>(__b)); }
158 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
159 operator|(_Ios_Iostate __a, _Ios_Iostate __b)
160 {
return _Ios_Iostate(static_cast<int>(__a) | static_cast<int>(__b)); }
162 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
163 operator^(_Ios_Iostate __a, _Ios_Iostate __b)
164 {
return _Ios_Iostate(static_cast<int>(__a) ^ static_cast<int>(__b)); }
166 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
168 {
return _Ios_Iostate(~static_cast<int>(__a)); }
170 inline const _Ios_Iostate&
171 operator|=(_Ios_Iostate& __a, _Ios_Iostate __b)
172 {
return __a = __a | __b; }
174 inline const _Ios_Iostate&
175 operator&=(_Ios_Iostate& __a, _Ios_Iostate __b)
176 {
return __a = __a & __b; }
178 inline const _Ios_Iostate&
179 operator^=(_Ios_Iostate& __a, _Ios_Iostate __b)
180 {
return __a = __a ^ __b; }
186 _S_cur = _GLIBCXX_STDIO_SEEK_CUR,
187 _S_end = _GLIBCXX_STDIO_SEEK_END,
188 _S_ios_seekdir_end = 1L << 16
217 failure(
const string& __str)
throw();
225 what()
const throw();
263 static const fmtflags
dec = _S_dec;
266 static const fmtflags
fixed = _S_fixed;
269 static const fmtflags
hex = _S_hex;
274 static const fmtflags
internal = _S_internal;
278 static const fmtflags
left = _S_left;
281 static const fmtflags
oct = _S_oct;
285 static const fmtflags
right = _S_right;
302 static const fmtflags
skipws = _S_skipws;
366 static const openmode
app = _S_app;
369 static const openmode
ate = _S_ate;
377 static const openmode
in = _S_in;
380 static const openmode
out = _S_out;
383 static const openmode
trunc = _S_trunc;
398 static const seekdir
beg = _S_beg;
401 static const seekdir
cur = _S_cur;
404 static const seekdir
end = _S_end;
407 typedef int io_state;
408 typedef int open_mode;
409 typedef int seek_dir;
457 iostate _M_exception;
458 iostate _M_streambuf_state;
462 struct _Callback_list
465 _Callback_list* _M_next;
468 _Atomic_word _M_refcount;
471 _Callback_list* __cb)
472 : _M_next(__cb), _M_fn(__fn), _M_index(__index), _M_refcount(0) { }
475 _M_add_reference() { __gnu_cxx::__atomic_add_dispatch(&_M_refcount, 1); }
479 _M_remove_reference()
482 _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&_M_refcount);
483 int __res = __gnu_cxx::__exchange_and_add_dispatch(&_M_refcount, -1);
486 _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&_M_refcount);
492 _Callback_list* _M_callbacks;
495 _M_call_callbacks(
event __ev)
throw();
498 _M_dispose_callbacks(
void) throw();
505 _Words() : _M_pword(0), _M_iword(0) { }
513 enum { _S_local_word_size = 8 };
514 _Words _M_local_word[_S_local_word_size];
521 _M_grow_words(
int __index,
bool __iword);
524 locale _M_ios_locale;
537 friend class ios_base;
543 static _Atomic_word _S_refcount;
544 static bool _S_synced_with_stdio;
566 fmtflags __old = _M_flags;
582 fmtflags __old = _M_flags;
597 setf(fmtflags __fmtfl, fmtflags __mask)
599 fmtflags __old = _M_flags;
601 _M_flags |= (__fmtfl & __mask);
613 { _M_flags &= ~__mask; }
624 {
return _M_precision; }
635 _M_precision = __prec;
698 {
return _M_ios_locale; }
709 {
return _M_ios_locale; }
745 _Words& __word = (__ix < _M_word_size)
746 ? _M_word[__ix] : _M_grow_words(__ix,
true);
747 return __word._M_iword;
766 _Words& __word = (__ix < _M_word_size)
767 ? _M_word[__ix] : _M_grow_words(__ix,
false);
768 return __word._M_pword;
791 operator=(const ios_base&);
974 _GLIBCXX_END_NAMESPACE_VERSION
bitset< _Nb > operator|(const bitset< _Nb > &__x, const bitset< _Nb > &__y) _GLIBCXX_NOEXCEPT
Global bitwise operations on bitsets.
ios_base & nounitbuf(ios_base &__base)
Calls base.unsetf(ios_base::unitbuf).
static const fmtflags internal
Adds fill characters at a designated internal point in certain generated output, or identical to righ...
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
static const seekdir beg
Request a seek relative to the beginning of the stream.
const locale & _M_getloc() const
Locale access.
static const openmode app
Seek to end before each write.
static const seekdir end
Request a seek relative to the current end of the sequence.
fmtflags setf(fmtflags __fmtfl)
Setting new format flags.
static const fmtflags dec
Converts integer input or generates integer output in decimal base.
static const fmtflags basefield
A mask of dec|oct|hex. Useful for the 2-arg form of setf.
static bool sync_with_stdio(bool __sync=true)
Interaction with the standard C I/O objects.
Base class for all library exceptions.
static const fmtflags showbase
Generates a prefix indicating the numeric base of generated integer output.
static const fmtflags fixed
Generate floating-point output in fixed-point notation.
static int xalloc()
Access to unique indices.
_Ios_Openmode openmode
This is a bitmask type.
ios_base & noboolalpha(ios_base &__base)
Calls base.unsetf(ios_base::boolalpha).
static const fmtflags boolalpha
Insert/extract bool in alphabetic rather than numeric format.
bitset< _Nb > operator^(const bitset< _Nb > &__x, const bitset< _Nb > &__y) _GLIBCXX_NOEXCEPT
Global bitwise operations on bitsets.
static const fmtflags showpoint
Generates a decimal-point character unconditionally in generated floating-point output.
ios_base & noshowbase(ios_base &__base)
Calls base.unsetf(ios_base::showbase).
bitset< _Nb > operator~() const _GLIBCXX_NOEXCEPT
See the no-argument flip().
static const fmtflags uppercase
Replaces certain lowercase letters with their uppercase equivalents in generated output.
void unsetf(fmtflags __mask)
Clearing format flags.
streamsize precision() const
Flags access.
static const fmtflags right
Adds fill characters on the left (initial positions) of certain generated output. (I...
_Ios_Iostate iostate
This is a bitmask type.
static const openmode ate
Open and seek to end immediately after opening.
void *& pword(int __ix)
Access to void pointer array.
bitset< _Nb > operator&(const bitset< _Nb > &__x, const bitset< _Nb > &__y) _GLIBCXX_NOEXCEPT
Global bitwise operations on bitsets.
static const iostate badbit
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error fro...
static const fmtflags oct
Converts integer input or generates integer output in octal base.
static const fmtflags unitbuf
Flushes output after each output operation.
static const fmtflags left
Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.)
_Ios_Fmtflags fmtflags
This is a bitmask type.
static const openmode out
Open for output. Default for ofstream and fstream.
These are thrown to indicate problems with io.27.4.2.1.1 Class ios_base::failure. ...
event
The set of events that may be passed to an event callback.
locale imbue(const locale &__loc)
Setting a new locale.
fmtflags setf(fmtflags __fmtfl, fmtflags __mask)
Setting new format flags.
long & iword(int __ix)
Access to integer array.
static const iostate goodbit
Indicates all is well.
static const openmode in
Open for input. Default for ifstream and fstream.
static const fmtflags skipws
Skips leading white space before certain input operations.
ios_base & noshowpoint(ios_base &__base)
Calls base.unsetf(ios_base::showpoint).
static const openmode trunc
Open for input. Default for ofstream.
static const seekdir cur
Request a seek relative to the current position within the sequence.
fmtflags flags() const
Access to format flags.
static const fmtflags floatfield
A mask of scientific|fixed. Useful for the 2-arg form of setf.
Class representing stream positions.
ios_base & nouppercase(ios_base &__base)
Calls base.unsetf(ios_base::uppercase).
_Siter_base< _Iterator >::iterator_type __base(_Iterator __it)
streamsize width() const
Flags access.
ios_base & noshowpos(ios_base &__base)
Calls base.unsetf(ios_base::showpos).
ios_base & noskipws(ios_base &__base)
Calls base.unsetf(ios_base::skipws).
_Ios_Seekdir seekdir
This is an enumerated type.
void(* event_callback)(event __e, ios_base &__b, int __i)
The type of an event callback function.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
streamsize precision(streamsize __prec)
Changing flags.
fmtflags flags(fmtflags __fmtfl)
Setting new format flags all at once.
static const iostate eofbit
Indicates that an input operation reached the end of an input sequence.
static const fmtflags adjustfield
A mask of left|right|internal. Useful for the 2-arg form of setf.
locale getloc() const
Locale access.
void register_callback(event_callback __fn, int __index)
Add the callback __fn with parameter __index.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
streamsize width(streamsize __wide)
Changing flags.
virtual const char * what() const
Container class for localization functionality.The locale class is first a class wrapper for C librar...
static const fmtflags showpos
Generates a + sign in non-negative generated numeric output.
static const fmtflags hex
Converts integer input or generates integer output in hexadecimal base.
static const openmode binary
Perform input and output in binary mode (as opposed to text mode). This is probably not what you thin...
long long streamoff
Type used by fpos, char_traits<char>, and char_traits<wchar_t>.
static const fmtflags scientific
Generates floating-point output in scientific notation.