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;
116 { _M_stringbuf_init(__mode); }
118 #if __cplusplus >= 201103L
123 { __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0); }
133 __xfer_bufptrs __st{__rhs,
this};
134 const __streambuf_type& __base = __rhs;
135 __streambuf_type::operator=(__base);
138 _M_string = std::move(__rhs._M_string);
139 __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0);
147 __xfer_bufptrs __r_st{__rhs,
this};
148 __streambuf_type& __base = __rhs;
149 __streambuf_type::swap(__base);
150 __rhs.pubimbue(this->
pubimbue(__rhs.getloc()));
151 std::swap(_M_mode, __rhs._M_mode);
152 std::swap(_M_string, __rhs._M_string);
195 _M_stringbuf_init(_M_mode);
201 _M_stringbuf_init(ios_base::openmode __mode)
204 __size_type __len = 0;
206 __len = _M_string.
size();
207 _M_sync(const_cast<char_type*>(_M_string.
data()), 0, __len);
226 pbackfail(int_type __c = traits_type::eof());
229 overflow(int_type __c = traits_type::eof());
242 virtual __streambuf_type*
256 _M_sync(__s, __n, 0);
262 seekoff(off_type __off, ios_base::seekdir __way,
273 _M_sync(char_type* __base, __size_type __i, __size_type __o);
293 _M_pbump(char_type* __pbeg, char_type* __pend, off_type __off);
296 #if __cplusplus >= 201103L
297 #if _GLIBCXX_USE_CXX11_ABI
300 struct __xfer_bufptrs
303 : _M_to{__to}, _M_goff{-1, -1, -1}, _M_poff{-1, -1, -1}
305 const _CharT*
const __str = __from._M_string.data();
306 const _CharT* __end =
nullptr;
309 _M_goff[0] = __from.eback() - __str;
310 _M_goff[1] = __from.gptr() - __str;
311 _M_goff[2] = __from.egptr() - __str;
312 __end = __from.egptr();
316 _M_poff[0] = __from.pbase() - __str;
317 _M_poff[1] = __from.pptr() - __from.pbase();
318 _M_poff[2] = __from.epptr() - __str;
319 if (__from.pptr() > __end)
320 __end = __from.pptr();
329 __mut_from._M_string._M_length(__end - __str);
335 char_type* __str =
const_cast<char_type*
>(_M_to->_M_string.data());
336 if (_M_goff[0] != -1)
337 _M_to->setg(__str+_M_goff[0], __str+_M_goff[1], __str+_M_goff[2]);
338 if (_M_poff[0] != -1)
339 _M_to->_M_pbump(__str+_M_poff[0], __str+_M_poff[2], _M_poff[1]);
348 struct __xfer_bufptrs
357 : __streambuf_type(static_cast<const __streambuf_type&>(__rhs)),
358 _M_mode(__rhs._M_mode), _M_string(std::move(__rhs._M_string))
379 template<
typename _CharT,
typename _Traits,
typename _Alloc>
380 class basic_istringstream :
public basic_istream<_CharT, _Traits>
384 typedef _CharT char_type;
385 typedef _Traits traits_type;
388 typedef _Alloc allocator_type;
389 typedef typename traits_type::int_type int_type;
390 typedef typename traits_type::pos_type pos_type;
391 typedef typename traits_type::off_type off_type;
394 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
395 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
396 typedef basic_istream<char_type, traits_type> __istream_type;
399 __stringbuf_type _M_stringbuf;
418 { this->
init(&_M_stringbuf); }
435 ios_base::openmode __mode = ios_base::in)
437 { this->
init(&_M_stringbuf); }
448 #if __cplusplus >= 201103L
452 : __istream_type(std::move(__rhs)),
453 _M_stringbuf(std::move(__rhs._M_stringbuf))
454 { __istream_type::set_rdbuf(&_M_stringbuf); }
464 __istream_type::operator=(std::move(__rhs));
465 _M_stringbuf = std::move(__rhs._M_stringbuf);
472 __istream_type::swap(__rhs);
473 _M_stringbuf.swap(__rhs._M_stringbuf);
486 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
494 {
return _M_stringbuf.str(); }
504 { _M_stringbuf.str(__s); }
523 template <
typename _CharT,
typename _Traits,
typename _Alloc>
524 class basic_ostringstream :
public basic_ostream<_CharT, _Traits>
528 typedef _CharT char_type;
529 typedef _Traits traits_type;
532 typedef _Alloc allocator_type;
533 typedef typename traits_type::int_type int_type;
534 typedef typename traits_type::pos_type pos_type;
535 typedef typename traits_type::off_type off_type;
538 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
539 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
540 typedef basic_ostream<char_type, traits_type> __ostream_type;
543 __stringbuf_type _M_stringbuf;
562 { this->
init(&_M_stringbuf); }
581 { this->
init(&_M_stringbuf); }
592 #if __cplusplus >= 201103L
596 : __ostream_type(std::move(__rhs)),
597 _M_stringbuf(std::move(__rhs._M_stringbuf))
598 { __ostream_type::set_rdbuf(&_M_stringbuf); }
608 __ostream_type::operator=(std::move(__rhs));
609 _M_stringbuf = std::move(__rhs._M_stringbuf);
616 __ostream_type::swap(__rhs);
617 _M_stringbuf.swap(__rhs._M_stringbuf);
630 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
638 {
return _M_stringbuf.str(); }
648 { _M_stringbuf.str(__s); }
667 template <
typename _CharT,
typename _Traits,
typename _Alloc>
668 class basic_stringstream :
public basic_iostream<_CharT, _Traits>
672 typedef _CharT char_type;
673 typedef _Traits traits_type;
676 typedef _Alloc allocator_type;
677 typedef typename traits_type::int_type int_type;
678 typedef typename traits_type::pos_type pos_type;
679 typedef typename traits_type::off_type off_type;
682 typedef basic_string<_CharT, _Traits, _Alloc> __string_type;
683 typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type;
684 typedef basic_iostream<char_type, traits_type> __iostream_type;
687 __stringbuf_type _M_stringbuf;
705 { this->
init(&_M_stringbuf); }
722 { this->
init(&_M_stringbuf); }
733 #if __cplusplus >= 201103L
737 : __iostream_type(std::move(__rhs)),
738 _M_stringbuf(std::move(__rhs._M_stringbuf))
739 { __iostream_type::set_rdbuf(&_M_stringbuf); }
749 __iostream_type::operator=(std::move(__rhs));
750 _M_stringbuf = std::move(__rhs._M_stringbuf);
757 __iostream_type::swap(__rhs);
758 _M_stringbuf.swap(__rhs._M_stringbuf);
771 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
779 {
return _M_stringbuf.str(); }
789 { _M_stringbuf.str(__s); }
792 #if __cplusplus >= 201103L
794 template <
class _CharT,
class _Traits,
class _Allocator>
801 template <
class _CharT,
class _Traits,
class _Allocator>
808 template <
class _CharT,
class _Traits,
class _Allocator>
815 template <
class _CharT,
class _Traits,
class _Allocator>
822 _GLIBCXX_END_NAMESPACE_CXX11
823 _GLIBCXX_END_NAMESPACE_VERSION
void str(const __string_type &__s)
Setting a new buffer.
char_type * eback() const
Access to the get area.
basic_stringstream(const __string_type &__str, ios_base::openmode __m=ios_base::out|ios_base::in)
Starts with an existing string buffer.
static const openmode out
Open for output. Default for ofstream and fstream.
basic_stringstream(ios_base::openmode __m=ios_base::out|ios_base::in)
Default constructor starts with an empty string buffer.
locale pubimbue(const locale &__loc)
Entry point for imbue().
char_type * egptr() const
Access to the get area.
Controlling input and output for std::string.
__string_type str() const
Copying out the string buffer.
Template class basic_iostream.
~basic_stringstream()
The destructor does nothing.
~basic_ostringstream()
The destructor does nothing.
char_type * gptr() const
Access to the get area.
The actual work of input and output (interface).
basic_ostringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::out)
Starts with an existing string buffer.
virtual pos_type seekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream positions.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
__string_type str() const
Copying out the string buffer.
static const openmode in
Open for input. Default for ifstream and fstream.
The actual work of input and output (for std::string).
Controlling output for std::string.
__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.
Controlling input for std::string.
Template class basic_ostream.
void init(basic_streambuf< _CharT, _Traits > *__sb)
All setup is performed here.
void str(const __string_type &__s)
Setting a new buffer.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
basic_istringstream(ios_base::openmode __mode=ios_base::in)
Default constructor starts with an empty string buffer.
~basic_istringstream()
The destructor does nothing.
const _CharT * data() const noexcept
Return const pointer to contents.
virtual streamsize showmanyc()
Investigating the data available.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
basic_ostringstream(ios_base::openmode __mode=ios_base::out)
Default constructor starts with an empty string buffer.
ios_base::openmode _M_mode
Place to stash in || out || in | out settings for current stringbuf.
basic_stringbuf(ios_base::openmode __mode=ios_base::in|ios_base::out)
Starts with an empty string buffer.
virtual int_type underflow()
Fetches more data from the controlled sequence.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
basic_stringbuf(const __string_type &__str, ios_base::openmode __mode=ios_base::in|ios_base::out)
Starts with an existing string buffer.
char_type * pptr() const
Access to the put area.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
static const openmode app
Seek to end before each write.
void str(const __string_type &__s)
Setting a new buffer.
Template class basic_istream.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
virtual __streambuf_type * setbuf(char_type *__s, streamsize __n)
Manipulates the buffer.
void str(const __string_type &__s)
Setting a new buffer.
static const openmode ate
Open and seek to end immediately after opening.
__string_type str() const
Copying out the string buffer.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
basic_istringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::in)
Starts with an existing string buffer.
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 * pbase() const
Access to the put area.