33 #ifndef _GLIBCXX_ISTREAM
34 #define _GLIBCXX_ISTREAM 1
36 #pragma GCC system_header
41 namespace std _GLIBCXX_VISIBILITY(default)
43 _GLIBCXX_BEGIN_NAMESPACE_VERSION
57 template<
typename _CharT,
typename _Traits>
58 class basic_istream :
virtual public basic_ios<_CharT, _Traits>
62 typedef _CharT char_type;
63 typedef typename _Traits::int_type int_type;
64 typedef typename _Traits::pos_type pos_type;
65 typedef typename _Traits::off_type off_type;
66 typedef _Traits traits_type;
69 typedef basic_streambuf<_CharT, _Traits> __streambuf_type;
70 typedef basic_ios<_CharT, _Traits> __ios_type;
71 typedef basic_istream<_CharT, _Traits> __istream_type;
72 typedef num_get<_CharT, istreambuf_iterator<_CharT, _Traits> >
74 typedef ctype<_CharT> __ctype_type;
121 {
return __pf(*
this); }
169 {
return _M_extract(__n); }
176 {
return _M_extract(__n); }
183 {
return _M_extract(__n); }
187 {
return _M_extract(__n); }
191 {
return _M_extract(__n); }
193 #ifdef _GLIBCXX_USE_LONG_LONG
196 {
return _M_extract(__n); }
200 {
return _M_extract(__n); }
215 {
return _M_extract(__f); }
219 {
return _M_extract(__f); }
223 {
return _M_extract(__f); }
236 {
return _M_extract(__p); }
343 get(char_type* __s,
streamsize __n, char_type __delim);
355 {
return this->
get(__s, __n, this->
widen(
'\n')); }
377 get(__streambuf_type& __sb, char_type __delim);
388 {
return this->
get(__sb, this->
widen(
'\n')); }
602 seekg(off_type, ios_base::seekdir);
610 #if __cplusplus >= 201103L
611 basic_istream(
const basic_istream&) =
delete;
613 basic_istream(basic_istream&& __rhs)
625 operator=(basic_istream&& __rhs)
632 swap(basic_istream& __rhs)
634 __ios_type::swap(__rhs);
639 template<
typename _ValueT>
641 _M_extract(_ValueT& __v);
660 #ifdef _GLIBCXX_USE_WCHAR_T
662 basic_istream<wchar_t>&
667 basic_istream<wchar_t>&
672 basic_istream<wchar_t>&
685 template<
typename _CharT,
typename _Traits>
697 typedef typename _Traits::int_type __int_type;
731 #if __cplusplus >= 201103L
734 operator bool()
const
750 template<
typename _CharT,
typename _Traits>
754 template<
class _Traits>
757 {
return (__in >> reinterpret_cast<char&>(__c)); }
759 template<
class _Traits>
760 inline basic_istream<char, _Traits>&
762 {
return (__in >> reinterpret_cast<char&>(__c)); }
792 template<
typename _CharT,
typename _Traits>
793 basic_istream<_CharT, _Traits>&
794 operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s);
799 operator>>(basic_istream<char>& __in,
char* __s);
801 template<
class _Traits>
802 inline basic_istream<char, _Traits>&
804 {
return (__in >> reinterpret_cast<char*>(__s)); }
806 template<
class _Traits>
807 inline basic_istream<char, _Traits>&
809 {
return (__in >> reinterpret_cast<char*>(__s)); }
823 template<
typename _CharT,
typename _Traits>
825 :
public basic_istream<_CharT, _Traits>,
826 public basic_ostream<_CharT, _Traits>
832 typedef _CharT char_type;
833 typedef typename _Traits::int_type int_type;
834 typedef typename _Traits::pos_type pos_type;
835 typedef typename _Traits::off_type off_type;
836 typedef _Traits traits_type;
839 typedef basic_istream<_CharT, _Traits> __istream_type;
840 typedef basic_ostream<_CharT, _Traits> __ostream_type;
860 : __istream_type(), __ostream_type() { }
862 #if __cplusplus >= 201103L
863 basic_iostream(
const basic_iostream&) =
delete;
865 basic_iostream(basic_iostream&& __rhs)
866 : __istream_type(std::move(__rhs)), __ostream_type(*this)
874 operator=(basic_iostream&& __rhs)
881 swap(basic_iostream& __rhs)
882 { __istream_type::swap(__rhs); }
906 template<
typename _CharT,
typename _Traits>
907 basic_istream<_CharT, _Traits>&
908 ws(basic_istream<_CharT, _Traits>& __is);
910 #if __cplusplus >= 201103L
911 template<
typename _Ch,
typename _Up>
912 basic_istream<_Ch, _Up>&
913 __is_convertible_to_basic_istream_test(basic_istream<_Ch, _Up>*);
915 template<
typename _Tp,
typename =
void>
916 struct __is_convertible_to_basic_istream_impl
918 using __istream_type = void;
921 template<
typename _Tp>
922 using __do_is_convertible_to_basic_istream_impl =
923 decltype(__is_convertible_to_basic_istream_test
924 (declval<
typename remove_reference<_Tp>::type*>()));
926 template<
typename _Tp>
927 struct __is_convertible_to_basic_istream_impl
929 __void_t<__do_is_convertible_to_basic_istream_impl<_Tp>>>
931 using __istream_type =
932 __do_is_convertible_to_basic_istream_impl<_Tp>;
935 template<
typename _Tp>
936 struct __is_convertible_to_basic_istream
937 : __is_convertible_to_basic_istream_impl<_Tp>
940 using type = __not_<is_void<
941 typename __is_convertible_to_basic_istream_impl<_Tp>::__istream_type>>;
942 constexpr
static bool value = type::value;
945 template<
typename _Istream,
typename _Tp,
typename =
void>
948 template<
typename _Istream,
typename _Tp>
949 struct __is_extractable<_Istream, _Tp,
950 __void_t<decltype(declval<_Istream&>()
954 template<
typename _Istream>
955 using __rvalue_istream_type =
956 typename __is_convertible_to_basic_istream<
957 _Istream>::__istream_type;
972 template<
typename _Istream,
typename _Tp>
974 typename enable_if<__and_<__not_<is_lvalue_reference<_Istream>>,
975 __is_convertible_to_basic_istream<_Istream>,
977 __rvalue_istream_type<_Istream>,
979 __rvalue_istream_type<_Istream>>::type
982 __rvalue_istream_type<_Istream> __ret_is = __is;
983 __ret_is >> std::forward<_Tp>(__x);
988 _GLIBCXX_END_NAMESPACE_VERSION
basic_istream< _CharT, _Traits > & ws(basic_istream< _CharT, _Traits > &__is)
Quick and easy way to eat whitespace.
__istream_type & operator>>(ios_base &(*__pf)(ios_base &))
Interface for manipulators.
__istream_type & operator>>(unsigned long &__n)
Integer arithmetic extractors.
__istream_type & operator>>(__istream_type &(*__pf)(__istream_type &))
Interface for manipulators.
streamsize readsome(char_type *__s, streamsize __n)
Extraction until the buffer is exhausted, but no more.
__istream_type & operator>>(unsigned int &__n)
Integer arithmetic extractors.
__istream_type & operator>>(bool &__n)
Integer arithmetic extractors.
__istream_type & putback(char_type __c)
Unextracting a single character.
Primary class template ctype facet.This template class defines classification and conversion function...
Performs setup work for input streams.
__istream_type & operator>>(__ios_type &(*__pf)(__ios_type &))
Interface for manipulators.
__istream_type & read(char_type *__s, streamsize __n)
Extraction without delimiters.
std::basic_istream< _CharT, _Traits > & operator>>(std::basic_istream< _CharT, _Traits > &__is, bitset< _Nb > &__x)
Global I/O operators for bitsets.
__istream_type & operator>>(unsigned long long &__n)
Integer arithmetic extractors.
__istream_type & getline(char_type *__s, streamsize __n)
String extraction.
_Traits traits_type
Easy access to dependent types.
streamsize gcount() const
Character counting.
char_type widen(char __c) const
Widens characters.
__istream_type & seekg(pos_type)
Changing the current read position.
int_type peek()
Looking ahead in the stream.
basic_istream(__streambuf_type *__sb)
Base constructor.
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
__istream_type & unget()
Unextracting the previous character.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
pos_type tellg()
Getting the current read position.
basic_iostream(basic_streambuf< _CharT, _Traits > *__sb)
Constructor does nothing.
__istream_type & operator>>(unsigned short &__n)
Integer arithmetic extractors.
int sync()
Synchronizing the stream buffer.
__istream_type & getline(char_type *__s, streamsize __n, char_type __delim)
String extraction.
Template class basic_iostream.
virtual ~basic_istream()
Base destructor.
__istream_type & operator>>(double &__f)
Floating point arithmetic extractors.
__istream_type & operator>>(long &__n)
Integer arithmetic extractors.
virtual ~basic_iostream()
Destructor does nothing.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
__istream_type & ignore()
Simple extraction.
__istream_type & operator>>(long double &__f)
Floating point arithmetic extractors.
__istream_type & operator>>(void *&__p)
Basic arithmetic extractors.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
void init(basic_streambuf< _CharT, _Traits > *__sb)
All setup is performed here.
__istream_type & operator>>(long long &__n)
Integer arithmetic extractors.
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
__istream_type & operator>>(float &__f)
Floating point arithmetic extractors.