33 #ifndef _GLIBCXX_SSTREAM
34 #define _GLIBCXX_SSTREAM 1
36 #pragma GCC system_header
41 namespace std _GLIBCXX_VISIBILITY(default)
43 _GLIBCXX_BEGIN_NAMESPACE_VERSION
44 _GLIBCXX_BEGIN_NAMESPACE_CXX11
64 template<
typename _CharT,
typename _Traits,
typename _Alloc>
65 class basic_stringbuf :
public basic_streambuf<_CharT, _Traits>
67 struct __xfer_bufptrs;
70 typedef _CharT char_type;
71 typedef _Traits traits_type;
74 typedef _Alloc allocator_type;
75 typedef typename traits_type::int_type int_type;
76 typedef typename traits_type::pos_type pos_type;
77 typedef typename traits_type::off_type off_type;
79 typedef basic_streambuf<char_type, traits_type> __streambuf_type;
80 typedef basic_string<char_type, _Traits, _Alloc> __string_type;
81 typedef typename __string_type::size_type __size_type;
127 _M_string(__str.data(), __str.size(), __str.get_allocator())
128 { _M_stringbuf_init(__mode); }
130 #if __cplusplus >= 201103L
135 { __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0); }
145 __xfer_bufptrs __st{__rhs,
this};
146 const __streambuf_type&
__base = __rhs;
147 __streambuf_type::operator=(__base);
151 __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0);
159 __xfer_bufptrs __r_st{__rhs,
this};
160 __streambuf_type& __base = __rhs;
161 __streambuf_type::swap(__base);
162 __rhs.pubimbue(this->
pubimbue(__rhs.getloc()));
163 std::swap(_M_mode, __rhs._M_mode);
164 std::swap(_M_string, __rhs._M_string);
207 _M_stringbuf_init(_M_mode);
213 _M_stringbuf_init(ios_base::openmode __mode)
216 __size_type __len = 0;
218 __len = _M_string.
size();
219 _M_sync(const_cast<char_type*>(_M_string.
data()), 0, __len);
238 pbackfail(int_type __c = traits_type::eof());
241 overflow(int_type __c = traits_type::eof());
254 virtual __streambuf_type*
268 _M_sync(__s, __n, 0);
274 seekoff(off_type __off, ios_base::seekdir __way,
285 _M_sync(char_type* __base, __size_type __i, __size_type __o);
305 _M_pbump(char_type* __pbeg, char_type* __pend, off_type __off);
308 #if __cplusplus >= 201103L
309 #if _GLIBCXX_USE_CXX11_ABI
312 struct __xfer_bufptrs
315 : _M_to{__to}, _M_goff{-1, -1, -1}, _M_poff{-1, -1, -1}
317 const _CharT*
const __str = __from._M_string.data();
318 const _CharT* __end =
nullptr;
321 _M_goff[0] = __from.eback() - __str;
322 _M_goff[1] = __from.gptr() - __str;
323 _M_goff[2] = __from.egptr() - __str;
324 __end = __from.egptr();
328 _M_poff[0] = __from.pbase() - __str;
329 _M_poff[1] = __from.pptr() - __from.pbase();
330 _M_poff[2] = __from.epptr() - __str;
331 if (__from.pptr() > __end)
332 __end = __from.pptr();
341 __mut_from._M_string._M_length(__end - __str);
347 char_type* __str =
const_cast<char_type*
>(_M_to->_M_string.data());
348 if (_M_goff[0] != -1)
349 _M_to->setg(__str+_M_goff[0], __str+_M_goff[1], __str+_M_goff[2]);
350 if (_M_poff[0] != -1)
351 _M_to->_M_pbump(__str+_M_poff[0], __str+_M_poff[2], _M_poff[1]);
360 struct __xfer_bufptrs
369 : __streambuf_type(static_cast<const __streambuf_type&>(__rhs)),
370 _M_mode(__rhs._M_mode), _M_string(std::
move(__rhs._M_string))
391 template<
typename _CharT,
typename _Traits,
typename _Alloc>
392 class basic_istringstream :
public basic_istream<_CharT, _Traits>
396 typedef _CharT char_type;
397 typedef _Traits traits_type;
400 typedef _Alloc allocator_type;
401 typedef typename traits_type::int_type int_type;
402 typedef typename traits_type::pos_type pos_type;
403 typedef typename traits_type::off_type off_type;
406 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
407 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
408 typedef basic_istream<char_type, traits_type> __istream_type;
411 __stringbuf_type _M_stringbuf;
427 { this->
init(&_M_stringbuf); }
444 { this->
init(&_M_stringbuf); }
461 ios_base::openmode __mode = ios_base::in)
463 { this->
init(&_M_stringbuf); }
474 #if __cplusplus >= 201103L
478 : __istream_type(std::move(__rhs)),
479 _M_stringbuf(std::move(__rhs._M_stringbuf))
480 { __istream_type::set_rdbuf(&_M_stringbuf); }
490 __istream_type::operator=(
std::move(__rhs));
491 _M_stringbuf =
std::move(__rhs._M_stringbuf);
498 __istream_type::swap(__rhs);
499 _M_stringbuf.swap(__rhs._M_stringbuf);
512 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
520 {
return _M_stringbuf.str(); }
530 { _M_stringbuf.str(__s); }
549 template <
typename _CharT,
typename _Traits,
typename _Alloc>
550 class basic_ostringstream :
public basic_ostream<_CharT, _Traits>
554 typedef _CharT char_type;
555 typedef _Traits traits_type;
558 typedef _Alloc allocator_type;
559 typedef typename traits_type::int_type int_type;
560 typedef typename traits_type::pos_type pos_type;
561 typedef typename traits_type::off_type off_type;
564 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
565 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
566 typedef basic_ostream<char_type, traits_type> __ostream_type;
569 __stringbuf_type _M_stringbuf;
585 { this->
init(&_M_stringbuf); }
602 { this->
init(&_M_stringbuf); }
621 { this->
init(&_M_stringbuf); }
632 #if __cplusplus >= 201103L
636 : __ostream_type(std::move(__rhs)),
637 _M_stringbuf(std::move(__rhs._M_stringbuf))
638 { __ostream_type::set_rdbuf(&_M_stringbuf); }
648 __ostream_type::operator=(
std::move(__rhs));
649 _M_stringbuf =
std::move(__rhs._M_stringbuf);
656 __ostream_type::swap(__rhs);
657 _M_stringbuf.swap(__rhs._M_stringbuf);
670 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
678 {
return _M_stringbuf.str(); }
688 { _M_stringbuf.str(__s); }
707 template <
typename _CharT,
typename _Traits,
typename _Alloc>
708 class basic_stringstream :
public basic_iostream<_CharT, _Traits>
712 typedef _CharT char_type;
713 typedef _Traits traits_type;
716 typedef _Alloc allocator_type;
717 typedef typename traits_type::int_type int_type;
718 typedef typename traits_type::pos_type pos_type;
719 typedef typename traits_type::off_type off_type;
722 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
723 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
724 typedef basic_iostream<char_type, traits_type> __iostream_type;
727 __stringbuf_type _M_stringbuf;
743 { this->
init(&_M_stringbuf); }
758 { this->
init(&_M_stringbuf); }
775 { this->
init(&_M_stringbuf); }
786 #if __cplusplus >= 201103L
790 : __iostream_type(std::move(__rhs)),
791 _M_stringbuf(std::move(__rhs._M_stringbuf))
792 { __iostream_type::set_rdbuf(&_M_stringbuf); }
802 __iostream_type::operator=(
std::move(__rhs));
803 _M_stringbuf =
std::move(__rhs._M_stringbuf);
810 __iostream_type::swap(__rhs);
811 _M_stringbuf.swap(__rhs._M_stringbuf);
824 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
832 {
return _M_stringbuf.str(); }
842 { _M_stringbuf.str(__s); }
845 #if __cplusplus >= 201103L
847 template <
class _CharT,
class _Traits,
class _Allocator>
854 template <
class _CharT,
class _Traits,
class _Allocator>
861 template <
class _CharT,
class _Traits,
class _Allocator>
868 template <
class _CharT,
class _Traits,
class _Allocator>
875 _GLIBCXX_END_NAMESPACE_CXX11
876 _GLIBCXX_END_NAMESPACE_VERSION
void str(const __string_type &__s)
Setting a new buffer.
Controlling input and output for std::string.
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.
basic_ostringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::out)
Starts with an existing string buffer.
basic_istringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::in)
Starts with an existing string buffer.
char_type * pptr() const
Access to the put area.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
Controlling output for std::string.
void str(const __string_type &__s)
Setting a new buffer.
char_type * egptr() const
Access to the get area.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
char_type * eback() const
Access to the get area.
const _CharT * data() const noexcept
Return const pointer to contents.
basic_stringstream(const __string_type &__str, ios_base::openmode __m=ios_base::out|ios_base::in)
Starts with an existing string buffer.
basic_stringbuf()
Starts with an empty string buffer.
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
basic_stringstream()
Default constructor starts with an empty string buffer.
static const openmode app
Seek to end before each write.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
basic_stringbuf(const __string_type &__str, ios_base::openmode __mode=ios_base::in|ios_base::out)
Starts with an existing string buffer.
Template class basic_istream.
virtual streamsize showmanyc()
Investigating the data available.
basic_istringstream(ios_base::openmode __mode)
Starts with an empty string buffer.
The actual work of input and output (for std::string).
ios_base::openmode _M_mode
Place to stash in || out || in | out settings for current stringbuf.
__string_type str() const
Copying out the string buffer.
virtual int_type underflow()
Fetches more data from the controlled sequence.
void str(const __string_type &__s)
Setting a new buffer.
void str(const __string_type &__s)
Setting a new buffer.
basic_stringstream(ios_base::openmode __m)
Starts with an empty string buffer.
static const openmode in
Open for input. Default for ifstream and fstream.
Controlling input for std::string.
The actual work of input and output (interface).
~basic_stringstream()
The destructor does nothing.
allocator_type get_allocator() const noexcept
Return copy of allocator used to construct this string.
__string_type str() const
Copying out the string buffer.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
basic_istringstream()
Default constructor starts with an empty string buffer.
constexpr _Iterator __base(_Iterator __it)
static const openmode out
Open for output. Default for ofstream and fstream.
basic_stringbuf(ios_base::openmode __mode)
Starts with an empty string buffer.
Template class basic_iostream.
~basic_ostringstream()
The destructor does nothing.
__string_type str() const
Copying out the string buffer.
void setg(char_type *__gbeg, char_type *__gnext, char_type *__gend)
Setting the three read area pointers.
virtual __streambuf_type * setbuf(char_type *__s, streamsize __n)
Manipulates the buffer.
locale pubimbue(const locale &__loc)
Entry point for imbue().
basic_ostringstream()
Default constructor starts with an empty string buffer.
virtual pos_type seekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream positions.
basic_ostringstream(ios_base::openmode __mode)
Starts with an empty string buffer.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
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_istringstream()
The destructor does nothing.
static const openmode ate
Open and seek to end immediately after opening.
Template class basic_ostream.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
char_type * pbase() const
Access to the put area.
void init(basic_streambuf< _CharT, _Traits > *__sb)
All setup is performed here.
char_type * gptr() const
Access to the get area.