37 #pragma GCC system_header
43 #if __cplusplus < 201103L
49 namespace std _GLIBCXX_VISIBILITY(default)
51 _GLIBCXX_BEGIN_NAMESPACE_VERSION
59 _S_boolalpha = 1L << 0,
63 _S_internal = 1L << 4,
67 _S_scientific = 1L << 8,
68 _S_showbase = 1L << 9,
69 _S_showpoint = 1L << 10,
70 _S_showpos = 1L << 11,
72 _S_unitbuf = 1L << 13,
73 _S_uppercase = 1L << 14,
74 _S_adjustfield = _S_left | _S_right | _S_internal,
75 _S_basefield = _S_dec | _S_oct | _S_hex,
76 _S_floatfield = _S_scientific | _S_fixed,
77 _S_ios_fmtflags_end = 1L << 16,
78 _S_ios_fmtflags_max = __INT_MAX__,
79 _S_ios_fmtflags_min = ~__INT_MAX__
82 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
83 operator&(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
84 {
return _Ios_Fmtflags(static_cast<int>(__a) & static_cast<int>(__b)); }
86 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
87 operator|(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
88 {
return _Ios_Fmtflags(static_cast<int>(__a) | static_cast<int>(__b)); }
90 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
91 operator^(_Ios_Fmtflags __a, _Ios_Fmtflags __b)
92 {
return _Ios_Fmtflags(static_cast<int>(__a) ^ static_cast<int>(__b)); }
94 inline _GLIBCXX_CONSTEXPR _Ios_Fmtflags
95 operator~(_Ios_Fmtflags __a)
96 {
return _Ios_Fmtflags(~static_cast<int>(__a)); }
98 inline const _Ios_Fmtflags&
99 operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
100 {
return __a = __a | __b; }
102 inline const _Ios_Fmtflags&
103 operator&=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
104 {
return __a = __a & __b; }
106 inline const _Ios_Fmtflags&
107 operator^=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b)
108 {
return __a = __a ^ __b; }
119 _S_ios_openmode_end = 1L << 16,
120 _S_ios_openmode_max = __INT_MAX__,
121 _S_ios_openmode_min = ~__INT_MAX__
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
129 operator|(_Ios_Openmode __a, _Ios_Openmode __b)
130 {
return _Ios_Openmode(static_cast<int>(__a) | static_cast<int>(__b)); }
132 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
133 operator^(_Ios_Openmode __a, _Ios_Openmode __b)
134 {
return _Ios_Openmode(static_cast<int>(__a) ^ static_cast<int>(__b)); }
136 inline _GLIBCXX_CONSTEXPR _Ios_Openmode
137 operator~(_Ios_Openmode __a)
138 {
return _Ios_Openmode(~static_cast<int>(__a)); }
140 inline const _Ios_Openmode&
141 operator|=(_Ios_Openmode& __a, _Ios_Openmode __b)
142 {
return __a = __a | __b; }
144 inline const _Ios_Openmode&
145 operator&=(_Ios_Openmode& __a, _Ios_Openmode __b)
146 {
return __a = __a & __b; }
148 inline const _Ios_Openmode&
149 operator^=(_Ios_Openmode& __a, _Ios_Openmode __b)
150 {
return __a = __a ^ __b; }
158 _S_failbit = 1L << 2,
159 _S_ios_iostate_end = 1L << 16,
160 _S_ios_iostate_max = __INT_MAX__,
161 _S_ios_iostate_min = ~__INT_MAX__
164 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
165 operator&(_Ios_Iostate __a, _Ios_Iostate __b)
166 {
return _Ios_Iostate(static_cast<int>(__a) & static_cast<int>(__b)); }
168 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
169 operator|(_Ios_Iostate __a, _Ios_Iostate __b)
170 {
return _Ios_Iostate(static_cast<int>(__a) | static_cast<int>(__b)); }
172 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
173 operator^(_Ios_Iostate __a, _Ios_Iostate __b)
174 {
return _Ios_Iostate(static_cast<int>(__a) ^ static_cast<int>(__b)); }
176 inline _GLIBCXX_CONSTEXPR _Ios_Iostate
177 operator~(_Ios_Iostate __a)
178 {
return _Ios_Iostate(~static_cast<int>(__a)); }
180 inline const _Ios_Iostate&
181 operator|=(_Ios_Iostate& __a, _Ios_Iostate __b)
182 {
return __a = __a | __b; }
184 inline const _Ios_Iostate&
185 operator&=(_Ios_Iostate& __a, _Ios_Iostate __b)
186 {
return __a = __a & __b; }
188 inline const _Ios_Iostate&
189 operator^=(_Ios_Iostate& __a, _Ios_Iostate __b)
190 {
return __a = __a ^ __b; }
196 _S_cur = _GLIBCXX_STDIO_SEEK_CUR,
197 _S_end = _GLIBCXX_STDIO_SEEK_END,
198 _S_ios_seekdir_end = 1L << 16
201 #if __cplusplus >= 201103L
207 const error_category& iostream_category() noexcept;
210 make_error_code(
io_errc __e) noexcept
211 {
return error_code(static_cast<int>(__e), iostream_category()); }
213 inline error_condition
215 {
return error_condition(static_cast<int>(__e), iostream_category()); }
230 #if _GLIBCXX_USE_CXX11_ABI
231 #if __cplusplus < 201103L
254 #if _GLIBCXX_USE_CXX11_ABI
255 class _GLIBCXX_ABI_TAG_CXX11 failure :
public system_error
259 failure(
const string& __str);
261 #if __cplusplus >= 201103L
266 failure(
const char*,
const error_code& = io_errc::stream);
273 what()
const throw();
282 failure(
const string& __str)
throw();
290 what()
const throw();
292 #if __cplusplus >= 201103L
297 failure(
const string& __s,
const error_code&) noexcept
303 : failure(
string(__s))
347 static const fmtflags
dec = _S_dec;
350 static const fmtflags
fixed = _S_fixed;
353 static const fmtflags
hex = _S_hex;
358 static const fmtflags
internal = _S_internal;
362 static const fmtflags
left = _S_left;
365 static const fmtflags
oct = _S_oct;
369 static const fmtflags
right = _S_right;
386 static const fmtflags
skipws = _S_skipws;
450 static const openmode
app = _S_app;
453 static const openmode
ate = _S_ate;
461 static const openmode
in = _S_in;
464 static const openmode
out = _S_out;
467 static const openmode
trunc = _S_trunc;
482 static const seekdir
beg = _S_beg;
485 static const seekdir
cur = _S_cur;
488 static const seekdir
end = _S_end;
490 #if __cplusplus <= 201402L
493 _GLIBCXX_DEPRECATED_SUGGEST(
"std::iostate");
494 typedef int open_mode
495 _GLIBCXX_DEPRECATED_SUGGEST(
"std::openmode");
497 _GLIBCXX_DEPRECATED_SUGGEST(
"std::seekdir");
500 _GLIBCXX_DEPRECATED_SUGGEST(
"std::streampos");
502 _GLIBCXX_DEPRECATED_SUGGEST(
"std::streamoff");
548 iostate _M_exception;
549 iostate _M_streambuf_state;
553 struct _Callback_list
556 _Callback_list* _M_next;
559 _Atomic_word _M_refcount;
562 _Callback_list* __cb)
563 : _M_next(__cb), _M_fn(__fn), _M_index(__index), _M_refcount(0) { }
566 _M_add_reference() { __gnu_cxx::__atomic_add_dispatch(&_M_refcount, 1); }
570 _M_remove_reference()
573 _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&_M_refcount);
574 int __res = __gnu_cxx::__exchange_and_add_dispatch(&_M_refcount, -1);
577 _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&_M_refcount);
583 _Callback_list* _M_callbacks;
586 _M_call_callbacks(
event __ev)
throw();
589 _M_dispose_callbacks(
void) throw();
596 _Words() : _M_pword(0), _M_iword(0) { }
604 enum { _S_local_word_size = 8 };
605 _Words _M_local_word[_S_local_word_size];
612 _M_grow_words(
int __index,
bool __iword);
615 locale _M_ios_locale;
628 friend class ios_base;
633 #if __cplusplus >= 201103L
634 Init(
const Init&) =
default;
635 Init& operator=(
const Init&) =
default;
639 static _Atomic_word _S_refcount;
640 static bool _S_synced_with_stdio;
662 fmtflags __old = _M_flags;
678 fmtflags __old = _M_flags;
693 setf(fmtflags __fmtfl, fmtflags __mask)
695 fmtflags __old = _M_flags;
697 _M_flags |= (__fmtfl & __mask);
709 { _M_flags &= ~__mask; }
720 {
return _M_precision; }
731 _M_precision = __prec;
794 {
return _M_ios_locale; }
805 {
return _M_ios_locale; }
841 _Words& __word = ((unsigned)__ix < (
unsigned)_M_word_size)
842 ? _M_word[__ix] : _M_grow_words(__ix,
true);
843 return __word._M_iword;
862 _Words& __word = ((unsigned)__ix < (
unsigned)_M_word_size)
863 ? _M_word[__ix] : _M_grow_words(__ix,
false);
864 return __word._M_pword;
881 #if __cplusplus < 201103L
894 operator=(
const ios_base&) =
delete;
1085 #if __cplusplus >= 201103L
1106 _GLIBCXX_END_NAMESPACE_VERSION
fmtflags flags(fmtflags __fmtfl)
Setting new format flags all at once.
static const fmtflags skipws
Skips leading white space before certain input operations.
static const iostate badbit
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error fro...
static const iostate eofbit
Indicates that an input operation reached the end of an input sequence.
static const fmtflags boolalpha
Insert/extract bool in alphabetic rather than numeric format.
bitset< _Nb > operator&(const bitset< _Nb > &__x, const bitset< _Nb > &__y) noexcept
Global bitwise operations on bitsets.
_Ios_Fmtflags fmtflags
This is a bitmask type.
long & iword(int __ix)
Access to integer array.
void *& pword(int __ix)
Access to void pointer array.
ios_base & defaultfloat(ios_base &__base)
Calls base.unsetf(ios_base::floatfield)
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.)
Class representing stream positions.
ios_base & unitbuf(ios_base &__base)
Calls base.setf(ios_base::unitbuf).
ios_base & uppercase(ios_base &__base)
Calls base.setf(ios_base::uppercase).
ios_base & left(ios_base &__base)
Calls base.setf(ios_base::left, ios_base::adjustfield).
streamsize precision() const
Flags access.
ios_base & boolalpha(ios_base &__base)
Calls base.setf(ios_base::boolalpha).
static const fmtflags unitbuf
Flushes output after each output operation.
ios_base & dec(ios_base &__base)
Calls base.setf(ios_base::dec, ios_base::basefield).
ios_base & showbase(ios_base &__base)
Calls base.setf(ios_base::showbase).
static const iostate goodbit
Indicates all is well.
static const fmtflags uppercase
Replaces certain lowercase letters with their uppercase equivalents in generated output.
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
ios_base & right(ios_base &__base)
Calls base.setf(ios_base::right, ios_base::adjustfield).
fmtflags flags() const
Access to format flags.
ios_base & noshowpos(ios_base &__base)
Calls base.unsetf(ios_base::showpos).
streamsize precision(streamsize __prec)
Changing flags.
static const fmtflags showpoint
Generates a decimal-point character unconditionally in generated floating-point output.
static const openmode app
Seek to end before each write.
static const fmtflags scientific
Generates floating-point output in scientific notation.
streamsize width(streamsize __wide)
Changing flags.
static const seekdir beg
Request a seek relative to the beginning of the stream.
ios_base & nouppercase(ios_base &__base)
Calls base.unsetf(ios_base::uppercase).
locale imbue(const locale &__loc)
Setting a new locale.
static const openmode binary
Perform input and output in binary mode (as opposed to text mode). This is probably not what you thin...
event
The set of events that may be passed to an event callback.
static const fmtflags fixed
Generate floating-point output in fixed-point notation.
ios_base & showpos(ios_base &__base)
Calls base.setf(ios_base::showpos).
static const openmode in
Open for input. Default for ifstream and fstream.
void unsetf(fmtflags __mask)
Clearing format flags.
ios_base & skipws(ios_base &__base)
Calls base.setf(ios_base::skipws).
virtual const char * what() const
bitset< _Nb > operator^(const bitset< _Nb > &__x, const bitset< _Nb > &__y) noexcept
Global bitwise operations on bitsets.
long long streamoff
Type used by fpos, char_traits<char>, and char_traits<wchar_t>.
static const fmtflags basefield
A mask of dec|oct|hex. Useful for the 2-arg form of setf.
Container class for localization functionality.The locale class is first a class wrapper for C librar...
static int xalloc()
Access to unique indices.
locale getloc() const
Locale access.
static const seekdir end
Request a seek relative to the current end of the sequence.
ios_base & nounitbuf(ios_base &__base)
Calls base.unsetf(ios_base::unitbuf).
ios_base & hex(ios_base &__base)
Calls base.setf(ios_base::hex, ios_base::basefield).
ios_base & noshowpoint(ios_base &__base)
Calls base.unsetf(ios_base::showpoint).
static const fmtflags hex
Converts integer input or generates integer output in hexadecimal base.
error_condition make_error_condition(future_errc __errc) noexcept
Overload for make_error_condition.
static const fmtflags floatfield
A mask of scientific|fixed. Useful for the 2-arg form of setf.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
streamsize width() const
Flags access.
_Ios_Iostate iostate
This is a bitmask type.
constexpr _Iterator __base(_Iterator __it)
static const openmode out
Open for output. Default for ofstream and fstream.
static const fmtflags right
Adds fill characters on the left (initial positions) of certain generated output. (I...
static const fmtflags adjustfield
A mask of left|right|internal. Useful for the 2-arg form of setf.
One of two subclasses of exception.
const locale & _M_getloc() const
Locale access.
fmtflags setf(fmtflags __fmtfl, fmtflags __mask)
Setting new format flags.
ios_base & noshowbase(ios_base &__base)
Calls base.unsetf(ios_base::showbase).
Base class for all library exceptions.
ios_base & fixed(ios_base &__base)
Calls base.setf(ios_base::fixed, ios_base::floatfield).
static const fmtflags oct
Converts integer input or generates integer output in octal base.
static const openmode trunc
Truncate an existing stream when opening. Default for ofstream.
void register_callback(event_callback __fn, int __index)
Add the callback __fn with parameter __index.
ios_base & hexfloat(ios_base &__base)
Calls base.setf(ios_base::fixed|ios_basescientific, ios_base::floatfield)
ios_base & showpoint(ios_base &__base)
Calls base.setf(ios_base::showpoint).
static const fmtflags internal
Adds fill characters at a designated internal point in certain generated output, or identical to righ...
fmtflags setf(fmtflags __fmtfl)
Setting new format flags.
ios_base & scientific(ios_base &__base)
Calls base.setf(ios_base::scientific, ios_base::floatfield).
static const fmtflags showpos
Generates a + sign in non-negative generated numeric output.
static const fmtflags showbase
Generates a prefix indicating the numeric base of generated integer output.
bitset< _Nb > operator|(const bitset< _Nb > &__x, const bitset< _Nb > &__y) noexcept
Global bitwise operations on bitsets.
_Ios_Seekdir seekdir
This is an enumerated type.
An exception type that includes an error_code value.
static const fmtflags dec
Converts integer input or generates integer output in decimal base.
ios_base & noskipws(ios_base &__base)
Calls base.unsetf(ios_base::skipws).
static const openmode ate
Open and seek to end immediately after opening.
static const seekdir cur
Request a seek relative to the current position within the sequence.
_Ios_Openmode openmode
This is a bitmask type.
void(* event_callback)(event __e, ios_base &__b, int __i)
The type of an event callback function.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
ios_base & oct(ios_base &__base)
Calls base.setf(ios_base::oct, ios_base::basefield).
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
static bool sync_with_stdio(bool __sync=true)
Interaction with the standard C I/O objects.
ios_base & noboolalpha(ios_base &__base)
Calls base.unsetf(ios_base::boolalpha).