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>
67 class basic_ios :
public ios_base
98 mutable bool _M_fill_init;
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); }
322 {
return _M_streambuf; }
374 _M_fill = this->
widen(
' ');
431 {
return __check_facet(_M_ctype).narrow(__c, __dfault); }
450 {
return __check_facet(_M_ctype).widen(__c); }
462 _M_streambuf(0), _M_ctype(0), _M_num_put(0), _M_num_get(0)
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);
499 std::swap(_M_tie, __rhs._M_tie);
500 std::swap(_M_fill, __rhs._M_fill);
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
bool good() const
Fast error checking.
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.
Primary class template num_get.This facet encapsulates the code to parse and return a number from a s...
char_type fill() const
Retrieves the empty character.
static const iostate goodbit
Indicates all is well.
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
locale imbue(const locale &__loc)
Moves to a new locale.
num_put< _CharT, ostreambuf_iterator< _CharT, _Traits > > __num_put_type
Primary class template ctype facet.This template class defines classification and conversion function...
_Traits::off_type off_type
basic_ostream< _CharT, _Traits > * tie(basic_ostream< _CharT, _Traits > *__tiestr)
Ties this stream to an output stream.
basic_ostream< _CharT, _Traits > * tie() const
Fetches the current tied stream.
iostate rdstate() const
Returns the error state of the stream buffer.
bool fail() const
Fast error checking.
bool operator!() const
The quick-and-easy status check.
void exceptions(iostate __except)
Throwing exceptions on errors.
void clear(iostate __state=goodbit)
[Re]sets the error state.
virtual ~basic_ios()
Empty.
bool eof() const
Fast error checking.
iostate exceptions() const
Throwing exceptions on errors.
char_type widen(char __c) const
Widens characters.
char_type fill(char_type __ch)
Sets a new empty character.
bool bad() const
Fast error checking.
_Traits::pos_type pos_type
Container class for localization functionality.The locale class is first a class wrapper for C librar...
The actual work of input and output (interface).
char narrow(char_type __c, char __dfault) const
Squeezes characters.
basic_ios & copyfmt(const basic_ios &__rhs)
Copies fields of __rhs into this.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
_Ios_Iostate iostate
This is a bitmask type.
num_get< _CharT, istreambuf_iterator< _CharT, _Traits > > __num_get_type
basic_ios(basic_streambuf< _CharT, _Traits > *__sb)
Constructor performs initialization.
basic_streambuf< _CharT, _Traits > * rdbuf() const
Accessing the underlying buffer.
Primary class template num_put.This facet encapsulates the code to convert a number to a string...
_Traits::int_type int_type
Template class basic_ios, virtual base class for all stream classes.
Template class basic_ostream.
void setstate(iostate __state)
Sets additional flags in the error state.
void init(basic_streambuf< _CharT, _Traits > *__sb)
All setup is performed here.
The ctype<char> specialization.This class defines classification and conversion functions for the cha...
ctype< _CharT > __ctype_type