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;
88 __string_type _M_string;
101 : __streambuf_type(), _M_mode(__mode), _M_string()
115 : __streambuf_type(), _M_mode(), _M_string(__str.data(), __str.size())
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);
137 _M_mode = __rhs._M_mode;
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;
150 __rhs.pubimbue(this->
pubimbue(__rhs.getloc()));
151 std::swap(_M_mode, __rhs._M_mode);
152 std::swap(_M_string, __rhs._M_string);
173 __ret = __string_type(this->
pbase(), this->
pptr());
175 __ret = __string_type(this->
pbase(), this->
egptr());
190 str(
const __string_type& __s)
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* __str = __from._M_string.data();
308 _M_goff[0] = __from.eback() - __str;
309 _M_goff[1] = __from.gptr() - __str;
310 _M_goff[2] = __from.egptr() - __str;
314 _M_poff[0] = __from.pbase() - __str;
315 _M_poff[1] = __from.pptr() - __from.pbase();
316 _M_poff[2] = __from.epptr() - __str;
322 char_type* __str =
const_cast<char_type*
>(_M_to->_M_string.data());
323 if (_M_goff[0] != -1)
324 _M_to->setg(__str+_M_goff[0], __str+_M_goff[1], __str+_M_goff[2]);
325 if (_M_poff[0] != -1)
326 _M_to->_M_pbump(__str+_M_poff[0], __str+_M_poff[2], _M_poff[1]);
335 struct __xfer_bufptrs
344 : __streambuf_type(static_cast<const __streambuf_type&>(__rhs)),
345 _M_mode(__rhs._M_mode), _M_string(std::move(__rhs._M_string))
366 template<
typename _CharT,
typename _Traits,
typename _Alloc>
371 typedef _CharT char_type;
372 typedef _Traits traits_type;
375 typedef _Alloc allocator_type;
376 typedef typename traits_type::int_type int_type;
377 typedef typename traits_type::pos_type pos_type;
378 typedef typename traits_type::off_type off_type;
386 __stringbuf_type _M_stringbuf;
404 : __istream_type(), _M_stringbuf(__mode |
ios_base::in)
405 { this->init(&_M_stringbuf); }
423 : __istream_type(), _M_stringbuf(__str, __mode |
ios_base::in)
424 { this->init(&_M_stringbuf); }
435 #if __cplusplus >= 201103L 439 : __istream_type(std::move(__rhs)),
440 _M_stringbuf(std::move(__rhs._M_stringbuf))
441 { __istream_type::set_rdbuf(&_M_stringbuf); }
451 __istream_type::operator=(std::move(__rhs));
452 _M_stringbuf = std::move(__rhs._M_stringbuf);
460 _M_stringbuf.swap(__rhs._M_stringbuf);
473 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
481 {
return _M_stringbuf.str(); }
490 str(
const __string_type& __s)
491 { _M_stringbuf.str(__s); }
510 template <
typename _CharT,
typename _Traits,
typename _Alloc>
515 typedef _CharT char_type;
516 typedef _Traits traits_type;
519 typedef _Alloc allocator_type;
520 typedef typename traits_type::int_type int_type;
521 typedef typename traits_type::pos_type pos_type;
522 typedef typename traits_type::off_type off_type;
530 __stringbuf_type _M_stringbuf;
548 : __ostream_type(), _M_stringbuf(__mode |
ios_base::out)
549 { this->init(&_M_stringbuf); }
567 : __ostream_type(), _M_stringbuf(__str, __mode |
ios_base::out)
568 { this->init(&_M_stringbuf); }
579 #if __cplusplus >= 201103L 583 : __ostream_type(std::move(__rhs)),
584 _M_stringbuf(std::move(__rhs._M_stringbuf))
585 { __ostream_type::set_rdbuf(&_M_stringbuf); }
595 __ostream_type::operator=(std::move(__rhs));
596 _M_stringbuf = std::move(__rhs._M_stringbuf);
604 _M_stringbuf.swap(__rhs._M_stringbuf);
617 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
625 {
return _M_stringbuf.str(); }
634 str(
const __string_type& __s)
635 { _M_stringbuf.str(__s); }
654 template <
typename _CharT,
typename _Traits,
typename _Alloc>
659 typedef _CharT char_type;
660 typedef _Traits traits_type;
663 typedef _Alloc allocator_type;
664 typedef typename traits_type::int_type int_type;
665 typedef typename traits_type::pos_type pos_type;
666 typedef typename traits_type::off_type off_type;
674 __stringbuf_type _M_stringbuf;
691 : __iostream_type(), _M_stringbuf(__m)
692 { this->init(&_M_stringbuf); }
708 : __iostream_type(), _M_stringbuf(__str, __m)
709 { this->init(&_M_stringbuf); }
720 #if __cplusplus >= 201103L 724 : __iostream_type(std::move(__rhs)),
725 _M_stringbuf(std::move(__rhs._M_stringbuf))
726 { __iostream_type::set_rdbuf(&_M_stringbuf); }
736 __iostream_type::operator=(std::move(__rhs));
737 _M_stringbuf = std::move(__rhs._M_stringbuf);
745 _M_stringbuf.swap(__rhs._M_stringbuf);
758 {
return const_cast<__stringbuf_type*
>(&_M_stringbuf); }
766 {
return _M_stringbuf.str(); }
775 str(
const __string_type& __s)
776 { _M_stringbuf.str(__s); }
779 #if __cplusplus >= 201103L 781 template <
class _CharT,
class _Traits,
class _Allocator>
788 template <
class _CharT,
class _Traits,
class _Allocator>
795 template <
class _CharT,
class _Traits,
class _Allocator>
802 template <
class _CharT,
class _Traits,
class _Allocator>
809 _GLIBCXX_END_NAMESPACE_CXX11
810 _GLIBCXX_END_NAMESPACE_VERSION
void setg(char_type *__gbeg, char_type *__gnext, char_type *__gend)
Setting the three read area pointers.
char_type * egptr() const
Access to the get area.
Controlling output for std::string.
basic_istringstream(ios_base::openmode __mode=ios_base::in)
Default constructor starts with an empty string buffer.
Template class basic_iostream.
void str(const __string_type &__s)
Setting a new buffer.
static const openmode app
Seek to end before each write.
void str(const __string_type &__s)
Setting a new buffer.
static const openmode out
Open for output. Default for ofstream and fstream.
basic_stringbuf(ios_base::openmode __mode=ios_base::in|ios_base::out)
Starts with an empty string buffer.
char_type * eback() const
Access to the get area.
virtual int_type underflow()
Fetches more data from the controlled sequence.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
char_type * pptr() const
Access to the put area.
ios_base::openmode _M_mode
Place to stash in || out || in | out settings for current stringbuf.
virtual streamsize showmanyc()
Investigating the data available.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
static const openmode in
Open for input. Default for ifstream and fstream.
size_type size() const noexcept
Returns the number of characters in the string, not including any null-termination.
static const openmode ate
Open and seek to end immediately after opening.
ISO C++ entities toplevel namespace is std.
__string_type str() const
Copying out the string buffer.
~basic_stringstream()
The destructor does nothing.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
Controlling input for std::string.
Template class basic_ostream.
basic_ostringstream(ios_base::openmode __mode=ios_base::out)
Default constructor starts with an empty string buffer.
~basic_istringstream()
The destructor does nothing.
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
virtual pos_type seekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream positions.
__string_type str() const
Copying out the string buffer.
basic_istringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::in)
Starts with an existing string buffer.
Controlling input and output for std::string.
void swap(basic_stringstream< _CharT, _Traits, _Allocator > &__x, basic_stringstream< _CharT, _Traits, _Allocator > &__y)
Swap specialization for stringstreams.
The actual work of input and output (for std::string).
basic_stringbuf(const __string_type &__str, ios_base::openmode __mode=ios_base::in|ios_base::out)
Starts with an existing string buffer.
basic_stringstream(const __string_type &__str, ios_base::openmode __m=ios_base::out|ios_base::in)
Starts with an existing string buffer.
char_type * pbase() const
Access to the put area.
virtual int_type overflow(int_type __c=traits_type::eof())
Consumes data from the buffer; writes to the controlled sequence.
__stringbuf_type * rdbuf() const
Accessing the underlying buffer.
__string_type str() const
Copying out the string buffer.
void str(const __string_type &__s)
Setting a new buffer.
ptrdiff_t streamsize
Integral type for I/O operation counts and buffer sizes.
Managing sequences of characters and character-like objects.
~basic_ostringstream()
The destructor does nothing.
basic_stringstream(ios_base::openmode __m=ios_base::out|ios_base::in)
Default constructor starts with an empty string buffer.
virtual __streambuf_type * setbuf(char_type *__s, streamsize __n)
Manipulates the buffer.
__string_type str() const
Copying out the string buffer.
void str(const __string_type &__s)
Setting a new 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.
const _CharT * data() const noexcept
Return const pointer to contents.
locale pubimbue(const locale &__loc)
Entry point for imbue().
Template class basic_istream.
char_type * gptr() const
Access to the get area.
virtual int_type pbackfail(int_type __c=traits_type::eof())
Tries to back up the input sequence.
basic_ostringstream(const __string_type &__str, ios_base::openmode __mode=ios_base::out)
Starts with an existing string buffer.