31 #define _BASIC_IOS_H 1
33 #pragma GCC system_header
41 namespace std _GLIBCXX_VISIBILITY(default)
43 _GLIBCXX_BEGIN_NAMESPACE_VERSION
45 template<
typename _Facet>
47 __check_facet(
const _Facet* __f)
66 template<
typename _CharT,
typename _Traits>
96 basic_ostream<_CharT, _Traits>* _M_tie;
97 mutable char_type _M_fill;
98 mutable bool _M_fill_init;
99 basic_streambuf<_CharT, _Traits>* _M_streambuf;
102 const __ctype_type* _M_ctype;
116 #if __cplusplus >= 201103L
117 explicit operator bool()
const
118 {
return !this->
fail(); }
120 operator void*()
const
126 {
return this->
fail(); }
138 {
return _M_streambuf_state; }
168 _M_streambuf_state |= __state;
170 __throw_exception_again;
181 {
return this->
rdstate() == 0; }
223 {
return _M_exception; }
259 _M_exception = __except;
260 this->
clear(_M_streambuf_state);
271 :
ios_base(), _M_tie(0), _M_fill(), _M_fill_init(false), _M_streambuf(0),
272 _M_ctype(0), _M_num_put(0), _M_num_get(0)
273 { this->
init(__sb); }
294 basic_ostream<_CharT, _Traits>*
306 basic_ostream<_CharT, _Traits>*
307 tie(basic_ostream<_CharT, _Traits>* __tiestr)
309 basic_ostream<_CharT, _Traits>* __old = _M_tie;
320 basic_streambuf<_CharT, _Traits>*
322 {
return _M_streambuf; }
346 basic_streambuf<_CharT, _Traits>*
347 rdbuf(basic_streambuf<_CharT, _Traits>* __sb);
374 _M_fill = this->
widen(
' ');
392 char_type __old = this->
fill();
430 narrow(char_type __c,
char __dfault)
const
431 {
return __check_facet(_M_ctype).narrow(__c, __dfault); }
450 {
return __check_facet(_M_ctype).widen(__c); }
461 :
ios_base(), _M_tie(0), _M_fill(char_type()), _M_fill_init(false),
462 _M_streambuf(0), _M_ctype(0), _M_num_put(0), _M_num_get(0)
472 init(basic_streambuf<_CharT, _Traits>* __sb);
474 #if __cplusplus >= 201103L
481 ios_base::_M_move(__rhs);
482 _M_cache_locale(_M_ios_locale);
483 this->
tie(__rhs.
tie(
nullptr));
484 _M_fill = __rhs._M_fill;
485 _M_fill_init = __rhs._M_fill_init;
486 _M_streambuf =
nullptr;
491 { this->move(__rhs); }
496 ios_base::_M_swap(__rhs);
497 _M_cache_locale(_M_ios_locale);
498 __rhs._M_cache_locale(__rhs._M_ios_locale);
501 std::swap(_M_fill_init, __rhs._M_fill_init);
505 set_rdbuf(basic_streambuf<_CharT, _Traits>* __sb)
506 { _M_streambuf = __sb; }
510 _M_cache_locale(
const locale& __loc);
513 _GLIBCXX_END_NAMESPACE_VERSION
516 #include <bits/basic_ios.tcc>
void swap(_Tp &, _Tp &) noexcept(__and_< is_nothrow_move_constructible< _Tp >, is_nothrow_move_assignable< _Tp >>::value)
Swaps two values.
iostate rdstate() const
Returns the error state of the stream buffer.
void setstate(iostate __state)
Sets additional flags in the error state.
Container class for localization functionality.The locale class is first a class wrapper for C librar...
_Traits::int_type int_type
Primary class template num_get.This facet encapsulates the code to parse and return a number from a s...
ctype< _CharT > __ctype_type
Primary class template ctype facet.This template class defines classification and conversion function...
bool good() const
Fast error checking.
bool bad() const
Fast error checking.
void exceptions(iostate __except)
Throwing exceptions on errors.
bool operator!() const
The quick-and-easy status check.
num_get< _CharT, istreambuf_iterator< _CharT, _Traits > > __num_get_type
_Ios_Iostate iostate
This is a bitmask type.
locale imbue(const locale &__loc)
Moves to a new locale.
char_type fill(char_type __ch)
Sets a new empty character.
_Traits::off_type off_type
num_put< _CharT, ostreambuf_iterator< _CharT, _Traits > > __num_put_type
char narrow(char_type __c, char __dfault) const
Squeezes characters.
virtual ~basic_ios()
Empty.
Template class basic_ios, virtual base class for all stream classes.
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
bool fail() const
Fast error checking.
static const iostate eofbit
Indicates that an input operation reached the end of an input sequence.
void init(basic_streambuf< _CharT, _Traits > *__sb)
All setup is performed here.
char_type fill() const
Retrieves the empty character.
iostate exceptions() const
Throwing exceptions on errors.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
bool eof() const
Fast error checking.
Primary class template num_put.This facet encapsulates the code to convert a number to a string...
basic_streambuf< _CharT, _Traits > * rdbuf() const
Accessing the underlying buffer.
basic_ostream< _CharT, _Traits > * tie(basic_ostream< _CharT, _Traits > *__tiestr)
Ties this stream to an output stream.
basic_ios(basic_streambuf< _CharT, _Traits > *__sb)
Constructor performs initialization.
static const iostate goodbit
Indicates all is well.
basic_ios & copyfmt(const basic_ios &__rhs)
Copies fields of __rhs into this.
_Traits::pos_type pos_type
basic_ostream< _CharT, _Traits > * tie() const
Fetches the current tied stream.
ISO C++ entities toplevel namespace is std.
char_type widen(char __c) const
Widens characters.
static const iostate badbit
Indicates a loss of integrity in an input or output sequence (such as an irrecoverable read error fro...
void clear(iostate __state=goodbit)
[Re]sets the error state.