33 #ifndef _GLIBCXX_SSTREAM
34 #define _GLIBCXX_SSTREAM 1
36 #pragma GCC system_header
42 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
43 # define _GLIBCXX_LVAL_REF_QUAL &
45 # define _GLIBCXX_LVAL_REF_QUAL
48 namespace std _GLIBCXX_VISIBILITY(default)
50 _GLIBCXX_BEGIN_NAMESPACE_VERSION
51 _GLIBCXX_BEGIN_NAMESPACE_CXX11
71 template<
typename _CharT,
typename _Traits,
typename _Alloc>
72 class basic_stringbuf :
public basic_streambuf<_CharT, _Traits>
74 struct __xfer_bufptrs;
76 #if __cplusplus >= 201103L
85 typedef _CharT char_type;
86 typedef _Traits traits_type;
89 typedef _Alloc allocator_type;
90 typedef typename traits_type::int_type int_type;
91 typedef typename traits_type::pos_type pos_type;
92 typedef typename traits_type::off_type off_type;
94 typedef basic_streambuf<char_type, traits_type> __streambuf_type;
95 typedef basic_string<char_type, _Traits, _Alloc> __string_type;
96 typedef typename __string_type::size_type __size_type;
142 _M_string(__str.
data(), __str.
size(), __str.get_allocator())
143 { _M_stringbuf_init(__mode); }
145 #if __cplusplus >= 201103L
150 { __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0); }
152 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
159 const allocator_type& __a)
160 : __streambuf_type(),
_M_mode(__mode), _M_string(__a)
167 : __streambuf_type(),
_M_mode(__mode), _M_string(std::
move(__s))
168 { _M_stringbuf_init(__mode); }
170 template<
typename _SAlloc>
172 const allocator_type& __a)
176 template<
typename _SAlloc>
179 const allocator_type& __a)
180 : __streambuf_type(),
_M_mode(__mode),
181 _M_string(__s.
data(), __s.
size(), __a)
182 { _M_stringbuf_init(__mode); }
184 template<
typename _SAlloc>
194 { __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0); }
196 allocator_type get_allocator() const noexcept
208 __xfer_bufptrs __st{__rhs,
this};
209 const __streambuf_type&
__base = __rhs;
214 __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0);
222 __xfer_bufptrs __r_st{__rhs,
this};
223 __streambuf_type& __base = __rhs;
224 __streambuf_type::swap(__base);
225 __rhs.pubimbue(this->
pubimbue(__rhs.getloc()));
226 std::swap(_M_mode, __rhs._M_mode);
227 std::swap(_M_string, __rhs._M_string);
242 str() const _GLIBCXX_LVAL_REF_QUAL
245 if (char_type* __hi = _M_high_mark())
246 __ret.
assign(this->pbase(), __hi);
252 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
254 template<__allocator_like _SAlloc>
256 str(
const _SAlloc& __sa)
const
259 return { __sv.data(), __sv.size(), __sa };
266 if (char_type* __hi = _M_high_mark())
269 _M_string._M_set_length(_M_high_mark() - this->
pbase());
273 _M_sync(_M_string.
data(), 0, 0);
277 basic_string_view<char_type, traits_type>
278 view() const noexcept
280 if (char_type* __hi = _M_high_mark())
281 return { this->
pbase(), __hi };
300 _M_stringbuf_init(_M_mode);
303 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
305 template<__allocator_like _SAlloc>
306 requires (!is_same_v<_SAlloc, _Alloc>)
310 _M_string.
assign(__s.data(), __s.size());
311 _M_stringbuf_init(_M_mode);
316 str(__string_type&& __s)
319 _M_stringbuf_init(_M_mode);
329 __size_type __len = 0;
331 __len = _M_string.size();
332 _M_sync(const_cast<char_type*>(_M_string.
data()), 0, __len);
351 pbackfail(int_type __c = traits_type::eof());
354 overflow(int_type __c = traits_type::eof());
367 virtual __streambuf_type*
381 _M_sync(__s, __n, 0);
387 seekoff(off_type __off, ios_base::seekdir __way,
398 _M_sync(char_type* __base, __size_type __i, __size_type __o);
405 if (char_type* __pptr = this->
pptr())
407 char_type* __egptr = this->
egptr();
408 if (!__egptr || __pptr > __egptr)
413 this->
setg(__pptr, __pptr, __pptr);
421 _M_pbump(char_type* __pbeg, char_type* __pend, off_type __off);
429 _M_high_mark() const _GLIBCXX_NOEXCEPT
431 if (char_type* __pptr = this->
pptr())
433 char_type* __egptr = this->
egptr();
434 if (!__egptr || __pptr > __egptr)
442 #if __cplusplus >= 201103L
443 #if _GLIBCXX_USE_CXX11_ABI
446 struct __xfer_bufptrs
449 : _M_to{__to}, _M_goff{-1, -1, -1}, _M_poff{-1, -1, -1}
451 const _CharT*
const __str = __from._M_string.data();
452 const _CharT* __end =
nullptr;
455 _M_goff[0] = __from.eback() - __str;
456 _M_goff[1] = __from.gptr() - __str;
457 _M_goff[2] = __from.egptr() - __str;
458 __end = __from.egptr();
462 _M_poff[0] = __from.pbase() - __str;
463 _M_poff[1] = __from.pptr() - __from.pbase();
464 _M_poff[2] = __from.epptr() - __str;
465 if (!__end || __from.pptr() > __end)
466 __end = __from.pptr();
475 __mut_from._M_string._M_length(__end - __str);
481 char_type* __str =
const_cast<char_type*
>(_M_to->_M_string.data());
482 if (_M_goff[0] != -1)
483 _M_to->setg(__str+_M_goff[0], __str+_M_goff[1], __str+_M_goff[2]);
484 if (_M_poff[0] != -1)
485 _M_to->_M_pbump(__str+_M_poff[0], __str+_M_poff[2], _M_poff[1]);
494 struct __xfer_bufptrs
503 : __streambuf_type(static_cast<const __streambuf_type&>(__rhs)),
504 _M_mode(__rhs._M_mode), _M_string(std::
move(__rhs._M_string))
507 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
512 : __streambuf_type(static_cast<const __streambuf_type&>(__rhs)),
513 _M_mode(__rhs._M_mode), _M_string(std::
move(__rhs._M_string), __a)
535 template<
typename _CharT,
typename _Traits,
typename _Alloc>
536 class basic_istringstream :
public basic_istream<_CharT, _Traits>
540 typedef _CharT char_type;
541 typedef _Traits traits_type;
544 typedef _Alloc allocator_type;
545 typedef typename traits_type::int_type int_type;
546 typedef typename traits_type::pos_type pos_type;
547 typedef typename traits_type::off_type off_type;
550 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
551 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
552 typedef basic_istream<char_type, traits_type> __istream_type;
555 __stringbuf_type _M_stringbuf;
571 { this->
init(&_M_stringbuf); }
588 { this->
init(&_M_stringbuf); }
607 { this->
init(&_M_stringbuf); }
618 #if __cplusplus >= 201103L
622 : __istream_type(std::move(__rhs)),
623 _M_stringbuf(std::move(__rhs._M_stringbuf))
624 { __istream_type::set_rdbuf(&_M_stringbuf); }
626 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
628 : __istream_type(), _M_stringbuf(__mode | ios_base::
in, __a)
634 : __istream_type(), _M_stringbuf(std::move(__str), __mode | ios_base::
in)
637 template<
typename _SAlloc>
639 const allocator_type& __a)
643 template<
typename _SAlloc>
646 const allocator_type& __a)
647 : __istream_type(), _M_stringbuf(__str, __mode | ios_base::
in, __a)
650 template<
typename _SAlloc>
666 __istream_type::operator=(
std::move(__rhs));
667 _M_stringbuf =
std::move(__rhs._M_stringbuf);
674 __istream_type::swap(__rhs);
675 _M_stringbuf.swap(__rhs._M_stringbuf);
688 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
695 str() const _GLIBCXX_LVAL_REF_QUAL
696 {
return _M_stringbuf.str(); }
698 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
700 template<__allocator_like _SAlloc>
702 str(
const _SAlloc& __sa)
const
703 {
return _M_stringbuf.str(__sa); }
708 {
return std::move(_M_stringbuf).str(); }
710 basic_string_view<char_type, traits_type>
711 view() const noexcept
712 {
return _M_stringbuf.view(); }
723 { _M_stringbuf.str(__s); }
725 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
727 template<__allocator_like _SAlloc>
728 requires (!is_same_v<_SAlloc, _Alloc>)
731 { _M_stringbuf.str(__s); }
735 str(__string_type&& __s)
756 template <
typename _CharT,
typename _Traits,
typename _Alloc>
757 class basic_ostringstream :
public basic_ostream<_CharT, _Traits>
761 typedef _CharT char_type;
762 typedef _Traits traits_type;
765 typedef _Alloc allocator_type;
766 typedef typename traits_type::int_type int_type;
767 typedef typename traits_type::pos_type pos_type;
768 typedef typename traits_type::off_type off_type;
771 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
772 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
773 typedef basic_ostream<char_type, traits_type> __ostream_type;
776 __stringbuf_type _M_stringbuf;
792 { this->
init(&_M_stringbuf); }
809 { this->
init(&_M_stringbuf); }
828 { this->
init(&_M_stringbuf); }
839 #if __cplusplus >= 201103L
843 : __ostream_type(std::move(__rhs)),
844 _M_stringbuf(std::move(__rhs._M_stringbuf))
845 { __ostream_type::set_rdbuf(&_M_stringbuf); }
847 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
849 : __ostream_type(), _M_stringbuf(__mode | ios_base::
out, __a)
855 : __ostream_type(), _M_stringbuf(std::move(__str), __mode | ios_base::
out)
858 template<
typename _SAlloc>
860 const allocator_type& __a)
864 template<
typename _SAlloc>
867 const allocator_type& __a)
868 : __ostream_type(), _M_stringbuf(__str, __mode | ios_base::
out, __a)
871 template<
typename _SAlloc>
887 __ostream_type::operator=(
std::move(__rhs));
888 _M_stringbuf =
std::move(__rhs._M_stringbuf);
895 __ostream_type::swap(__rhs);
896 _M_stringbuf.swap(__rhs._M_stringbuf);
909 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
916 str() const _GLIBCXX_LVAL_REF_QUAL
917 {
return _M_stringbuf.str(); }
919 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
921 template<__allocator_like _SAlloc>
923 str(
const _SAlloc& __sa)
const
924 {
return _M_stringbuf.str(__sa); }
929 {
return std::move(_M_stringbuf).str(); }
931 basic_string_view<char_type, traits_type>
932 view() const noexcept
933 {
return _M_stringbuf.view(); }
944 { _M_stringbuf.str(__s); }
946 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
948 template<__allocator_like _SAlloc>
949 requires (!is_same_v<_SAlloc, _Alloc>)
952 { _M_stringbuf.str(__s); }
956 str(__string_type&& __s)
977 template <
typename _CharT,
typename _Traits,
typename _Alloc>
978 class basic_stringstream :
public basic_iostream<_CharT, _Traits>
982 typedef _CharT char_type;
983 typedef _Traits traits_type;
986 typedef _Alloc allocator_type;
987 typedef typename traits_type::int_type int_type;
988 typedef typename traits_type::pos_type pos_type;
989 typedef typename traits_type::off_type off_type;
992 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
993 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
994 typedef basic_iostream<char_type, traits_type> __iostream_type;
997 __stringbuf_type _M_stringbuf;
1013 { this->
init(&_M_stringbuf); }
1028 { this->
init(&_M_stringbuf); }
1045 { this->
init(&_M_stringbuf); }
1056 #if __cplusplus >= 201103L
1060 : __iostream_type(std::move(__rhs)),
1061 _M_stringbuf(std::move(__rhs._M_stringbuf))
1062 { __iostream_type::set_rdbuf(&_M_stringbuf); }
1064 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
1066 : __iostream_type(), _M_stringbuf(__mode, __a)
1067 { this->
init(&_M_stringbuf); }
1073 : __iostream_type(), _M_stringbuf(std::move(__str), __mode)
1076 template<
typename _SAlloc>
1078 const allocator_type& __a)
1082 template<
typename _SAlloc>
1085 const allocator_type& __a)
1086 : __iostream_type(), _M_stringbuf(__str, __mode, __a)
1089 template<
typename _SAlloc>
1106 __iostream_type::operator=(
std::move(__rhs));
1107 _M_stringbuf =
std::move(__rhs._M_stringbuf);
1114 __iostream_type::swap(__rhs);
1115 _M_stringbuf.swap(__rhs._M_stringbuf);
1128 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
1135 str() const _GLIBCXX_LVAL_REF_QUAL
1136 {
return _M_stringbuf.str(); }
1138 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
1140 template<__allocator_like _SAlloc>
1142 str(
const _SAlloc& __sa)
const
1143 {
return _M_stringbuf.str(__sa); }
1148 {
return std::move(_M_stringbuf).str(); }
1150 basic_string_view<char_type, traits_type>
1151 view() const noexcept
1152 {
return _M_stringbuf.view(); }
1163 { _M_stringbuf.str(__s); }
1165 #if __cplusplus > 201703L && _GLIBCXX_USE_CXX11_ABI
1167 template<__allocator_like _SAlloc>
1168 requires (!is_same_v<_SAlloc, _Alloc>)
1171 { _M_stringbuf.str(__s); }
1175 str(__string_type&& __s)
1180 #if __cplusplus >= 201103L
1182 template <
class _CharT,
class _Traits,
class _Allocator>
1186 noexcept(noexcept(__x.swap(__y)))
1190 template <
class _CharT,
class _Traits,
class _Allocator>
1197 template <
class _CharT,
class _Traits,
class _Allocator>
1204 template <
class _CharT,
class _Traits,
class _Allocator>
1211 _GLIBCXX_END_NAMESPACE_CXX11
1212 _GLIBCXX_END_NAMESPACE_VERSION
1215 #undef _GLIBCXX_LVAL_REF_QUAL
__string_type str() const
Copying out the string buffer.
void str(const __string_type &__s)
Setting a new buffer.
~basic_istringstream()
The destructor does nothing.
__detected_or_t< false_type, __pocs, _Alloc > propagate_on_container_swap
How the allocator is propagated on swap.
constexpr std::remove_reference< _Tp >::type && move(_Tp &&__t) noexcept
Convert a value to an rvalue.
__string_type str() const
Copying out the string buffer.
basic_stringbuf(ios_base::openmode __mode)
Starts with an empty string buffer.
static const openmode app
Seek to end before each write.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
__string_type str() const
Copying out the string buffer.
static const openmode out
Open for output. Default for ofstream and fstream.
void init(basic_streambuf< _CharT, _Traits > *__sb)
All setup is performed here.
basic_stringstream(ios_base::openmode __m)
Starts with an empty string buffer.
basic_stringstream()
Default constructor starts with an empty string buffer.
~basic_ostringstream()
The destructor does nothing.
basic_stringbuf(const __string_type &__str, ios_base::openmode __mode=ios_base::in|ios_base::out)
Starts with an existing string buffer.
virtual __streambuf_type * setbuf(char_type *__s, streamsize __n)
Manipulates the buffer.
Controlling input for std::string.
constexpr auto data(_Container &__cont) noexcept(noexcept(__cont.data())) -> decltype(__cont.data())
Return the data pointer of a container.
~basic_stringstream()
The destructor does nothing.
virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream positions.
char_type * gptr() const
Access to the get area.
__string_type str() const
Copying out the string buffer.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
Controlling output for std::string.
virtual pos_type seekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream positions.
void str(const __string_type &__s)
Setting a new buffer.
const _CharT * data() const noexcept
Return const pointer to contents.
basic_stringbuf()
Starts with an empty string buffer.
char_type * pbase() const
Access to the put area.
locale pubimbue(const locale &__loc)
Entry point for imbue().
basic_ostringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::out)
Starts with an existing string buffer.
Controlling input and output for std::string.
char_type * egptr() const
Access to the get area.
char_type * eback() const
Access to the get area.
Template class basic_istream.
basic_ostringstream()
Default constructor starts with an empty string buffer.
basic_istringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::in)
Starts with an existing string buffer.
ios_base::openmode _M_mode
Place to stash in || out || in | out settings for current stringbuf.
char_type * pptr() const
Access to the put area.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
Uniform interface to all allocator types.
constexpr _Iterator __base(_Iterator __it)
The actual work of input and output (interface).
basic_ostringstream(ios_base::openmode __mode)
Starts with an empty string buffer.
allocator_type get_allocator() const noexcept
Return copy of allocator used to construct this string.
basic_istringstream()
Default constructor starts with an empty string buffer.
Template class basic_ostream.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
_Ios_Openmode openmode
This is a bitmask type.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
basic_istringstream(ios_base::openmode __mode)
Starts with an empty string buffer.
The actual work of input and output (for std::string).
virtual streamsize showmanyc()
Investigating the data available.
Template class basic_iostream.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
__detected_or_t< typename is_empty< _Alloc >::type, __equal, _Alloc > is_always_equal
Whether all instances of the allocator type compare equal.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
void str(const __string_type &__s)
Setting a new buffer.
basic_stringstream(const __string_type &__str, ios_base::openmode __m=ios_base::out|ios_base::in)
Starts with an existing string buffer.
virtual int_type underflow()
Fetches more data from the controlled sequence.
void setg(char_type *__gbeg, char_type *__gnext, char_type *__gend)
Setting the three read area pointers.
constexpr auto size(const _Container &__cont) noexcept(noexcept(__cont.size())) -> decltype(__cont.size())
Return the size of a container.
static const openmode ate
Open and seek to end immediately after opening.
void str(const __string_type &__s)
Setting a new buffer.
auto_ptr & operator=(auto_ptr &__a)
auto_ptr assignment operator.
static const openmode in
Open for input. Default for ifstream and fstream.