35 #define _SSTREAM_TCC 1 37 #pragma GCC system_header 39 namespace std _GLIBCXX_VISIBILITY(default)
41 _GLIBCXX_BEGIN_NAMESPACE_VERSION
43 template <
class _CharT,
class _Traits,
class _Alloc>
44 typename basic_stringbuf<_CharT, _Traits, _Alloc>::int_type
48 int_type __ret = traits_type::eof();
49 if (this->eback() < this->gptr())
53 const bool __testeof = traits_type::eq_int_type(__c, __ret);
56 const bool __testeq = traits_type::eq(traits_type::
60 if (__testeq || __testout)
64 *this->gptr() = traits_type::to_char_type(__c);
71 __ret = traits_type::not_eof(__c);
77 template <
class _CharT,
class _Traits,
class _Alloc>
78 typename basic_stringbuf<_CharT, _Traits, _Alloc>::int_type
83 if (__builtin_expect(!__testout,
false))
84 return traits_type::eof();
86 const bool __testeof = traits_type::eq_int_type(__c, traits_type::eof());
87 if (__builtin_expect(__testeof,
false))
88 return traits_type::not_eof(__c);
90 const __size_type __capacity = _M_string.capacity();
91 const __size_type __max_size = _M_string.max_size();
92 const bool __testput = this->pptr() < this->epptr();
93 if (__builtin_expect(!__testput && __capacity == __max_size,
false))
94 return traits_type::eof();
98 const char_type __conv = traits_type::to_char_type(__c);
110 const __size_type __opt_len =
std::max(__size_type(2 * __capacity),
112 const __size_type __len =
std::min(__opt_len, __max_size);
116 __tmp.
assign(this->pbase(), this->epptr() - this->pbase());
118 _M_string.swap(__tmp);
119 _M_sync(const_cast<char_type*>(_M_string.data()),
120 this->gptr() - this->eback(), this->pptr() - this->pbase());
123 *this->pptr() = __conv;
128 template <
class _CharT,
class _Traits,
class _Alloc>
129 typename basic_stringbuf<_CharT, _Traits, _Alloc>::int_type
133 int_type __ret = traits_type::eof();
140 if (this->gptr() < this->egptr())
141 __ret = traits_type::to_int_type(*this->gptr());
146 template <
class _CharT,
class _Traits,
class _Alloc>
147 typename basic_stringbuf<_CharT, _Traits, _Alloc>::pos_type
149 seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode __mode)
151 pos_type __ret = pos_type(off_type(-1));
152 bool __testin = (
ios_base::in & this->_M_mode & __mode) != 0;
153 bool __testout = (
ios_base::out & this->_M_mode & __mode) != 0;
154 const bool __testboth = __testin && __testout && __way !=
ios_base::cur;
160 const char_type* __beg = __testin ? this->eback() : this->pbase();
161 if ((__beg || !__off) && (__testin || __testout || __testboth))
165 off_type __newoffi = __off;
166 off_type __newoffo = __newoffi;
169 __newoffi += this->gptr() - __beg;
170 __newoffo += this->pptr() - __beg;
173 __newoffo = __newoffi += this->egptr() - __beg;
175 if ((__testin || __testboth)
177 && this->egptr() - __beg >= __newoffi)
179 this->setg(this->eback(), this->eback() + __newoffi,
181 __ret = pos_type(__newoffi);
183 if ((__testout || __testboth)
185 && this->egptr() - __beg >= __newoffo)
187 _M_pbump(this->pbase(), this->epptr(), __newoffo);
188 __ret = pos_type(__newoffo);
194 template <
class _CharT,
class _Traits,
class _Alloc>
195 typename basic_stringbuf<_CharT, _Traits, _Alloc>::pos_type
197 seekpos(pos_type __sp, ios_base::openmode __mode)
199 pos_type __ret = pos_type(off_type(-1));
200 const bool __testin = (
ios_base::in & this->_M_mode & __mode) != 0;
201 const bool __testout = (
ios_base::out & this->_M_mode & __mode) != 0;
203 const char_type* __beg = __testin ? this->eback() : this->pbase();
204 if ((__beg || !off_type(__sp)) && (__testin || __testout))
208 const off_type __pos(__sp);
209 const bool __testpos = (0 <= __pos
210 && __pos <= this->egptr() - __beg);
214 this->setg(this->eback(), this->eback() + __pos,
217 _M_pbump(this->pbase(), this->epptr(), __pos);
224 template <
class _CharT,
class _Traits,
class _Alloc>
231 char_type* __endg = __base + _M_string.size();
232 char_type* __endp = __base + _M_string.capacity();
234 if (__base != _M_string.data())
243 this->setg(__base, __base + __i, __endg);
246 _M_pbump(__base, __endp, __o);
251 this->setg(__endg, __endg, __endg);
255 template <
class _CharT,
class _Traits,
class _Alloc>
258 _M_pbump(char_type* __pbeg, char_type* __pend, off_type __off)
260 this->setp(__pbeg, __pend);
261 while (__off > __gnu_cxx::__numeric_traits<int>::__max)
263 this->pbump(__gnu_cxx::__numeric_traits<int>::__max);
264 __off -= __gnu_cxx::__numeric_traits<int>::__max;
271 #if _GLIBCXX_EXTERN_TEMPLATE 277 #ifdef _GLIBCXX_USE_WCHAR_T 285 _GLIBCXX_END_NAMESPACE_VERSION
virtual int_type underflow()
Fetches more data from the controlled sequence.
The actual work of input and output (for std::string).
static const seekdir cur
Request a seek relative to the current position within the sequence.
basic_string & assign(const basic_string &__str)
Set value to contents of another string.
Controlling input and output for std::string.
virtual int_type overflow(int_type __c=traits_type::eof())
Consumes data from the buffer; writes to the controlled sequence.
static const openmode out
Open for output. Default for ofstream and fstream.
_GLIBCXX14_CONSTEXPR const _Tp & min(const _Tp &, const _Tp &)
This does what you think it does.
_GLIBCXX14_CONSTEXPR const _Tp & max(const _Tp &, const _Tp &)
This does what you think it does.
static const openmode in
Open for input. Default for ifstream and fstream.
static const seekdir end
Request a seek relative to the current end of the sequence.
void reserve(size_type __res_arg=0)
Attempt to preallocate enough memory for specified number of characters.
virtual pos_type seekpos(pos_type __sp, ios_base::openmode __mode=ios_base::in|ios_base::out)
Alters the stream positions.
Controlling input 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.
Controlling output for std::string.
virtual int_type pbackfail(int_type __c=traits_type::eof())
Tries to back up the input sequence.
_Siter_base< _Iterator >::iterator_type __base(_Iterator __it)
void push_back(_CharT __c)
Append a single character.
ISO C++ entities toplevel namespace is std.