0,0 → 1,815 |
// String based streams -*- C++ -*- |
|
// Copyright (C) 1997-2015 Free Software Foundation, Inc. |
// |
// This file is part of the GNU ISO C++ Library. This library is free |
// software; you can redistribute it and/or modify it under the |
// terms of the GNU General Public License as published by the |
// Free Software Foundation; either version 3, or (at your option) |
// any later version. |
|
// This library is distributed in the hope that it will be useful, |
// but WITHOUT ANY WARRANTY; without even the implied warranty of |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
// GNU General Public License for more details. |
|
// Under Section 7 of GPL version 3, you are granted additional |
// permissions described in the GCC Runtime Library Exception, version |
// 3.1, as published by the Free Software Foundation. |
|
// You should have received a copy of the GNU General Public License and |
// a copy of the GCC Runtime Library Exception along with this program; |
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
// <http://www.gnu.org/licenses/>. |
|
/** @file include/sstream |
* This is a Standard C++ Library header. |
*/ |
|
// |
// ISO C++ 14882: 27.7 String-based streams |
// |
|
#ifndef _GLIBCXX_SSTREAM |
#define _GLIBCXX_SSTREAM 1 |
|
#pragma GCC system_header |
|
#include <istream> |
#include <ostream> |
|
namespace std _GLIBCXX_VISIBILITY(default) |
{ |
_GLIBCXX_BEGIN_NAMESPACE_VERSION |
_GLIBCXX_BEGIN_NAMESPACE_CXX11 |
|
// [27.7.1] template class basic_stringbuf |
/** |
* @brief The actual work of input and output (for std::string). |
* @ingroup io |
* |
* @tparam _CharT Type of character stream. |
* @tparam _Traits Traits for character type, defaults to |
* char_traits<_CharT>. |
* @tparam _Alloc Allocator type, defaults to allocator<_CharT>. |
* |
* This class associates either or both of its input and output sequences |
* with a sequence of characters, which can be initialized from, or made |
* available as, a @c std::basic_string. (Paraphrased from [27.7.1]/1.) |
* |
* For this class, open modes (of type @c ios_base::openmode) have |
* @c in set if the input sequence can be read, and @c out set if the |
* output sequence can be written. |
*/ |
template<typename _CharT, typename _Traits, typename _Alloc> |
class basic_stringbuf : public basic_streambuf<_CharT, _Traits> |
{ |
struct __xfer_bufptrs; |
public: |
// Types: |
typedef _CharT char_type; |
typedef _Traits traits_type; |
// _GLIBCXX_RESOLVE_LIB_DEFECTS |
// 251. basic_stringbuf missing allocator_type |
typedef _Alloc allocator_type; |
typedef typename traits_type::int_type int_type; |
typedef typename traits_type::pos_type pos_type; |
typedef typename traits_type::off_type off_type; |
|
typedef basic_streambuf<char_type, traits_type> __streambuf_type; |
typedef basic_string<char_type, _Traits, _Alloc> __string_type; |
typedef typename __string_type::size_type __size_type; |
|
protected: |
/// Place to stash in || out || in | out settings for current stringbuf. |
ios_base::openmode _M_mode; |
|
// Data Members: |
__string_type _M_string; |
|
public: |
// Constructors: |
/** |
* @brief Starts with an empty string buffer. |
* @param __mode Whether the buffer can read, or write, or both. |
* |
* The default constructor initializes the parent class using its |
* own default ctor. |
*/ |
explicit |
basic_stringbuf(ios_base::openmode __mode = ios_base::in | ios_base::out) |
: __streambuf_type(), _M_mode(__mode), _M_string() |
{ } |
|
/** |
* @brief Starts with an existing string buffer. |
* @param __str A string to copy as a starting buffer. |
* @param __mode Whether the buffer can read, or write, or both. |
* |
* This constructor initializes the parent class using its |
* own default ctor. |
*/ |
explicit |
basic_stringbuf(const __string_type& __str, |
ios_base::openmode __mode = ios_base::in | ios_base::out) |
: __streambuf_type(), _M_mode(), _M_string(__str.data(), __str.size()) |
{ _M_stringbuf_init(__mode); } |
|
#if __cplusplus >= 201103L |
basic_stringbuf(const basic_stringbuf&) = delete; |
|
basic_stringbuf(basic_stringbuf&& __rhs) |
: basic_stringbuf(std::move(__rhs), __xfer_bufptrs(__rhs, this)) |
{ __rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0); } |
|
// 27.8.2.2 Assign and swap: |
|
basic_stringbuf& |
operator=(const basic_stringbuf&) = delete; |
|
basic_stringbuf& |
operator=(basic_stringbuf&& __rhs) |
{ |
__xfer_bufptrs __st{__rhs, this}; |
const __streambuf_type& __base = __rhs; |
__streambuf_type::operator=(__base); |
this->pubimbue(__rhs.getloc()); |
_M_mode = __rhs._M_mode; |
_M_string = std::move(__rhs._M_string); |
__rhs._M_sync(const_cast<char_type*>(__rhs._M_string.data()), 0, 0); |
return *this; |
} |
|
void |
swap(basic_stringbuf& __rhs) |
{ |
__xfer_bufptrs __l_st{*this, std::__addressof(__rhs)}; |
__xfer_bufptrs __r_st{__rhs, this}; |
__streambuf_type& __base = __rhs; |
__streambuf_type::swap(__base); |
__rhs.pubimbue(this->pubimbue(__rhs.getloc())); |
std::swap(_M_mode, __rhs._M_mode); |
std::swap(_M_string, __rhs._M_string); |
} |
#endif |
|
// Get and set: |
/** |
* @brief Copying out the string buffer. |
* @return A copy of one of the underlying sequences. |
* |
* <em>If the buffer is only created in input mode, the underlying |
* character sequence is equal to the input sequence; otherwise, it |
* is equal to the output sequence.</em> [27.7.1.2]/1 |
*/ |
__string_type |
str() const |
{ |
__string_type __ret; |
if (this->pptr()) |
{ |
// The current egptr() may not be the actual string end. |
if (this->pptr() > this->egptr()) |
__ret = __string_type(this->pbase(), this->pptr()); |
else |
__ret = __string_type(this->pbase(), this->egptr()); |
} |
else |
__ret = _M_string; |
return __ret; |
} |
|
/** |
* @brief Setting a new buffer. |
* @param __s The string to use as a new sequence. |
* |
* Deallocates any previous stored sequence, then copies @a s to |
* use as a new one. |
*/ |
void |
str(const __string_type& __s) |
{ |
// Cannot use _M_string = __s, since v3 strings are COW |
// (not always true now but assign() always works). |
_M_string.assign(__s.data(), __s.size()); |
_M_stringbuf_init(_M_mode); |
} |
|
protected: |
// Common initialization code goes here. |
void |
_M_stringbuf_init(ios_base::openmode __mode) |
{ |
_M_mode = __mode; |
__size_type __len = 0; |
if (_M_mode & (ios_base::ate | ios_base::app)) |
__len = _M_string.size(); |
_M_sync(const_cast<char_type*>(_M_string.data()), 0, __len); |
} |
|
virtual streamsize |
showmanyc() |
{ |
streamsize __ret = -1; |
if (_M_mode & ios_base::in) |
{ |
_M_update_egptr(); |
__ret = this->egptr() - this->gptr(); |
} |
return __ret; |
} |
|
virtual int_type |
underflow(); |
|
virtual int_type |
pbackfail(int_type __c = traits_type::eof()); |
|
virtual int_type |
overflow(int_type __c = traits_type::eof()); |
|
/** |
* @brief Manipulates the buffer. |
* @param __s Pointer to a buffer area. |
* @param __n Size of @a __s. |
* @return @c this |
* |
* If no buffer has already been created, and both @a __s and @a __n are |
* non-zero, then @c __s is used as a buffer; see |
* https://gcc.gnu.org/onlinedocs/libstdc++/manual/streambufs.html#io.streambuf.buffering |
* for more. |
*/ |
virtual __streambuf_type* |
setbuf(char_type* __s, streamsize __n) |
{ |
if (__s && __n >= 0) |
{ |
// This is implementation-defined behavior, and assumes |
// that an external char_type array of length __n exists |
// and has been pre-allocated. If this is not the case, |
// things will quickly blow up. |
|
// Step 1: Destroy the current internal array. |
_M_string.clear(); |
|
// Step 2: Use the external array. |
_M_sync(__s, __n, 0); |
} |
return this; |
} |
|
virtual pos_type |
seekoff(off_type __off, ios_base::seekdir __way, |
ios_base::openmode __mode = ios_base::in | ios_base::out); |
|
virtual pos_type |
seekpos(pos_type __sp, |
ios_base::openmode __mode = ios_base::in | ios_base::out); |
|
// Internal function for correctly updating the internal buffer |
// for a particular _M_string, due to initialization or re-sizing |
// of an existing _M_string. |
void |
_M_sync(char_type* __base, __size_type __i, __size_type __o); |
|
// Internal function for correctly updating egptr() to the actual |
// string end. |
void |
_M_update_egptr() |
{ |
const bool __testin = _M_mode & ios_base::in; |
if (this->pptr() && this->pptr() > this->egptr()) |
{ |
if (__testin) |
this->setg(this->eback(), this->gptr(), this->pptr()); |
else |
this->setg(this->pptr(), this->pptr(), this->pptr()); |
} |
} |
|
// Works around the issue with pbump, part of the protected |
// interface of basic_streambuf, taking just an int. |
void |
_M_pbump(char_type* __pbeg, char_type* __pend, off_type __off); |
|
private: |
#if __cplusplus >= 201103L |
#if _GLIBCXX_USE_CXX11_ABI |
// This type captures the state of the gptr / pptr pointers as offsets |
// so they can be restored in another object after moving the string. |
struct __xfer_bufptrs |
{ |
__xfer_bufptrs(const basic_stringbuf& __from, basic_stringbuf* __to) |
: _M_to{__to}, _M_goff{-1, -1, -1}, _M_poff{-1, -1, -1} |
{ |
const _CharT* __str = __from._M_string.data(); |
if (__from.eback()) |
{ |
_M_goff[0] = __from.eback() - __str; |
_M_goff[1] = __from.gptr() - __str; |
_M_goff[2] = __from.egptr() - __str; |
} |
if (__from.pbase()) |
{ |
_M_poff[0] = __from.pbase() - __str; |
_M_poff[1] = __from.pptr() - __from.pbase(); |
_M_poff[2] = __from.epptr() - __str; |
} |
} |
|
~__xfer_bufptrs() |
{ |
char_type* __str = const_cast<char_type*>(_M_to->_M_string.data()); |
if (_M_goff[0] != -1) |
_M_to->setg(__str+_M_goff[0], __str+_M_goff[1], __str+_M_goff[2]); |
if (_M_poff[0] != -1) |
_M_to->_M_pbump(__str+_M_poff[0], __str+_M_poff[2], _M_poff[1]); |
} |
|
basic_stringbuf* _M_to; |
off_type _M_goff[3]; |
off_type _M_poff[3]; |
}; |
#else |
// This type does nothing when using Copy-On-Write strings. |
struct __xfer_bufptrs |
{ |
__xfer_bufptrs(const basic_stringbuf&, basic_stringbuf*) { } |
}; |
#endif |
|
// The move constructor initializes an __xfer_bufptrs temporary then |
// delegates to this constructor to performs moves during its lifetime. |
basic_stringbuf(basic_stringbuf&& __rhs, __xfer_bufptrs&&) |
: __streambuf_type(static_cast<const __streambuf_type&>(__rhs)), |
_M_mode(__rhs._M_mode), _M_string(std::move(__rhs._M_string)) |
{ } |
#endif |
}; |
|
|
// [27.7.2] Template class basic_istringstream |
/** |
* @brief Controlling input for std::string. |
* @ingroup io |
* |
* @tparam _CharT Type of character stream. |
* @tparam _Traits Traits for character type, defaults to |
* char_traits<_CharT>. |
* @tparam _Alloc Allocator type, defaults to allocator<_CharT>. |
* |
* This class supports reading from objects of type std::basic_string, |
* using the inherited functions from std::basic_istream. To control |
* the associated sequence, an instance of std::basic_stringbuf is used, |
* which this page refers to as @c sb. |
*/ |
template<typename _CharT, typename _Traits, typename _Alloc> |
class basic_istringstream : public basic_istream<_CharT, _Traits> |
{ |
public: |
// Types: |
typedef _CharT char_type; |
typedef _Traits traits_type; |
// _GLIBCXX_RESOLVE_LIB_DEFECTS |
// 251. basic_stringbuf missing allocator_type |
typedef _Alloc allocator_type; |
typedef typename traits_type::int_type int_type; |
typedef typename traits_type::pos_type pos_type; |
typedef typename traits_type::off_type off_type; |
|
// Non-standard types: |
typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type; |
typedef basic_istream<char_type, traits_type> __istream_type; |
|
private: |
__stringbuf_type _M_stringbuf; |
|
public: |
// Constructors: |
/** |
* @brief Default constructor starts with an empty string buffer. |
* @param __mode Whether the buffer can read, or write, or both. |
* |
* @c ios_base::in is automatically included in @a __mode. |
* |
* Initializes @c sb using @c __mode|in, and passes @c &sb to the base |
* class initializer. Does not allocate any buffer. |
* |
* That's a lie. We initialize the base class with NULL, because the |
* string class does its own memory management. |
*/ |
explicit |
basic_istringstream(ios_base::openmode __mode = ios_base::in) |
: __istream_type(), _M_stringbuf(__mode | ios_base::in) |
{ this->init(&_M_stringbuf); } |
|
/** |
* @brief Starts with an existing string buffer. |
* @param __str A string to copy as a starting buffer. |
* @param __mode Whether the buffer can read, or write, or both. |
* |
* @c ios_base::in is automatically included in @a mode. |
* |
* Initializes @c sb using @a str and @c mode|in, and passes @c &sb |
* to the base class initializer. |
* |
* That's a lie. We initialize the base class with NULL, because the |
* string class does its own memory management. |
*/ |
explicit |
basic_istringstream(const __string_type& __str, |
ios_base::openmode __mode = ios_base::in) |
: __istream_type(), _M_stringbuf(__str, __mode | ios_base::in) |
{ this->init(&_M_stringbuf); } |
|
/** |
* @brief The destructor does nothing. |
* |
* The buffer is deallocated by the stringbuf object, not the |
* formatting stream. |
*/ |
~basic_istringstream() |
{ } |
|
#if __cplusplus >= 201103L |
basic_istringstream(const basic_istringstream&) = delete; |
|
basic_istringstream(basic_istringstream&& __rhs) |
: __istream_type(std::move(__rhs)), |
_M_stringbuf(std::move(__rhs._M_stringbuf)) |
{ __istream_type::set_rdbuf(&_M_stringbuf); } |
|
// 27.8.3.2 Assign and swap: |
|
basic_istringstream& |
operator=(const basic_istringstream&) = delete; |
|
basic_istringstream& |
operator=(basic_istringstream&& __rhs) |
{ |
__istream_type::operator=(std::move(__rhs)); |
_M_stringbuf = std::move(__rhs._M_stringbuf); |
return *this; |
} |
|
void |
swap(basic_istringstream& __rhs) |
{ |
__istream_type::swap(__rhs); |
_M_stringbuf.swap(__rhs._M_stringbuf); |
} |
#endif |
|
// Members: |
/** |
* @brief Accessing the underlying buffer. |
* @return The current basic_stringbuf buffer. |
* |
* This hides both signatures of std::basic_ios::rdbuf(). |
*/ |
__stringbuf_type* |
rdbuf() const |
{ return const_cast<__stringbuf_type*>(&_M_stringbuf); } |
|
/** |
* @brief Copying out the string buffer. |
* @return @c rdbuf()->str() |
*/ |
__string_type |
str() const |
{ return _M_stringbuf.str(); } |
|
/** |
* @brief Setting a new buffer. |
* @param __s The string to use as a new sequence. |
* |
* Calls @c rdbuf()->str(s). |
*/ |
void |
str(const __string_type& __s) |
{ _M_stringbuf.str(__s); } |
}; |
|
|
// [27.7.3] Template class basic_ostringstream |
/** |
* @brief Controlling output for std::string. |
* @ingroup io |
* |
* @tparam _CharT Type of character stream. |
* @tparam _Traits Traits for character type, defaults to |
* char_traits<_CharT>. |
* @tparam _Alloc Allocator type, defaults to allocator<_CharT>. |
* |
* This class supports writing to objects of type std::basic_string, |
* using the inherited functions from std::basic_ostream. To control |
* the associated sequence, an instance of std::basic_stringbuf is used, |
* which this page refers to as @c sb. |
*/ |
template <typename _CharT, typename _Traits, typename _Alloc> |
class basic_ostringstream : public basic_ostream<_CharT, _Traits> |
{ |
public: |
// Types: |
typedef _CharT char_type; |
typedef _Traits traits_type; |
// _GLIBCXX_RESOLVE_LIB_DEFECTS |
// 251. basic_stringbuf missing allocator_type |
typedef _Alloc allocator_type; |
typedef typename traits_type::int_type int_type; |
typedef typename traits_type::pos_type pos_type; |
typedef typename traits_type::off_type off_type; |
|
// Non-standard types: |
typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type; |
typedef basic_ostream<char_type, traits_type> __ostream_type; |
|
private: |
__stringbuf_type _M_stringbuf; |
|
public: |
// Constructors/destructor: |
/** |
* @brief Default constructor starts with an empty string buffer. |
* @param __mode Whether the buffer can read, or write, or both. |
* |
* @c ios_base::out is automatically included in @a mode. |
* |
* Initializes @c sb using @c mode|out, and passes @c &sb to the base |
* class initializer. Does not allocate any buffer. |
* |
* That's a lie. We initialize the base class with NULL, because the |
* string class does its own memory management. |
*/ |
explicit |
basic_ostringstream(ios_base::openmode __mode = ios_base::out) |
: __ostream_type(), _M_stringbuf(__mode | ios_base::out) |
{ this->init(&_M_stringbuf); } |
|
/** |
* @brief Starts with an existing string buffer. |
* @param __str A string to copy as a starting buffer. |
* @param __mode Whether the buffer can read, or write, or both. |
* |
* @c ios_base::out is automatically included in @a mode. |
* |
* Initializes @c sb using @a str and @c mode|out, and passes @c &sb |
* to the base class initializer. |
* |
* That's a lie. We initialize the base class with NULL, because the |
* string class does its own memory management. |
*/ |
explicit |
basic_ostringstream(const __string_type& __str, |
ios_base::openmode __mode = ios_base::out) |
: __ostream_type(), _M_stringbuf(__str, __mode | ios_base::out) |
{ this->init(&_M_stringbuf); } |
|
/** |
* @brief The destructor does nothing. |
* |
* The buffer is deallocated by the stringbuf object, not the |
* formatting stream. |
*/ |
~basic_ostringstream() |
{ } |
|
#if __cplusplus >= 201103L |
basic_ostringstream(const basic_ostringstream&) = delete; |
|
basic_ostringstream(basic_ostringstream&& __rhs) |
: __ostream_type(std::move(__rhs)), |
_M_stringbuf(std::move(__rhs._M_stringbuf)) |
{ __ostream_type::set_rdbuf(&_M_stringbuf); } |
|
// 27.8.3.2 Assign and swap: |
|
basic_ostringstream& |
operator=(const basic_ostringstream&) = delete; |
|
basic_ostringstream& |
operator=(basic_ostringstream&& __rhs) |
{ |
__ostream_type::operator=(std::move(__rhs)); |
_M_stringbuf = std::move(__rhs._M_stringbuf); |
return *this; |
} |
|
void |
swap(basic_ostringstream& __rhs) |
{ |
__ostream_type::swap(__rhs); |
_M_stringbuf.swap(__rhs._M_stringbuf); |
} |
#endif |
|
// Members: |
/** |
* @brief Accessing the underlying buffer. |
* @return The current basic_stringbuf buffer. |
* |
* This hides both signatures of std::basic_ios::rdbuf(). |
*/ |
__stringbuf_type* |
rdbuf() const |
{ return const_cast<__stringbuf_type*>(&_M_stringbuf); } |
|
/** |
* @brief Copying out the string buffer. |
* @return @c rdbuf()->str() |
*/ |
__string_type |
str() const |
{ return _M_stringbuf.str(); } |
|
/** |
* @brief Setting a new buffer. |
* @param __s The string to use as a new sequence. |
* |
* Calls @c rdbuf()->str(s). |
*/ |
void |
str(const __string_type& __s) |
{ _M_stringbuf.str(__s); } |
}; |
|
|
// [27.7.4] Template class basic_stringstream |
/** |
* @brief Controlling input and output for std::string. |
* @ingroup io |
* |
* @tparam _CharT Type of character stream. |
* @tparam _Traits Traits for character type, defaults to |
* char_traits<_CharT>. |
* @tparam _Alloc Allocator type, defaults to allocator<_CharT>. |
* |
* This class supports reading from and writing to objects of type |
* std::basic_string, using the inherited functions from |
* std::basic_iostream. To control the associated sequence, an instance |
* of std::basic_stringbuf is used, which this page refers to as @c sb. |
*/ |
template <typename _CharT, typename _Traits, typename _Alloc> |
class basic_stringstream : public basic_iostream<_CharT, _Traits> |
{ |
public: |
// Types: |
typedef _CharT char_type; |
typedef _Traits traits_type; |
// _GLIBCXX_RESOLVE_LIB_DEFECTS |
// 251. basic_stringbuf missing allocator_type |
typedef _Alloc allocator_type; |
typedef typename traits_type::int_type int_type; |
typedef typename traits_type::pos_type pos_type; |
typedef typename traits_type::off_type off_type; |
|
// Non-standard Types: |
typedef basic_string<_CharT, _Traits, _Alloc> __string_type; |
typedef basic_stringbuf<_CharT, _Traits, _Alloc> __stringbuf_type; |
typedef basic_iostream<char_type, traits_type> __iostream_type; |
|
private: |
__stringbuf_type _M_stringbuf; |
|
public: |
// Constructors/destructors |
/** |
* @brief Default constructor starts with an empty string buffer. |
* @param __m Whether the buffer can read, or write, or both. |
* |
* Initializes @c sb using the mode from @c __m, and passes @c |
* &sb to the base class initializer. Does not allocate any |
* buffer. |
* |
* That's a lie. We initialize the base class with NULL, because the |
* string class does its own memory management. |
*/ |
explicit |
basic_stringstream(ios_base::openmode __m = ios_base::out | ios_base::in) |
: __iostream_type(), _M_stringbuf(__m) |
{ this->init(&_M_stringbuf); } |
|
/** |
* @brief Starts with an existing string buffer. |
* @param __str A string to copy as a starting buffer. |
* @param __m Whether the buffer can read, or write, or both. |
* |
* Initializes @c sb using @a __str and @c __m, and passes @c &sb |
* to the base class initializer. |
* |
* That's a lie. We initialize the base class with NULL, because the |
* string class does its own memory management. |
*/ |
explicit |
basic_stringstream(const __string_type& __str, |
ios_base::openmode __m = ios_base::out | ios_base::in) |
: __iostream_type(), _M_stringbuf(__str, __m) |
{ this->init(&_M_stringbuf); } |
|
/** |
* @brief The destructor does nothing. |
* |
* The buffer is deallocated by the stringbuf object, not the |
* formatting stream. |
*/ |
~basic_stringstream() |
{ } |
|
#if __cplusplus >= 201103L |
basic_stringstream(const basic_stringstream&) = delete; |
|
basic_stringstream(basic_stringstream&& __rhs) |
: __iostream_type(std::move(__rhs)), |
_M_stringbuf(std::move(__rhs._M_stringbuf)) |
{ __iostream_type::set_rdbuf(&_M_stringbuf); } |
|
// 27.8.3.2 Assign and swap: |
|
basic_stringstream& |
operator=(const basic_stringstream&) = delete; |
|
basic_stringstream& |
operator=(basic_stringstream&& __rhs) |
{ |
__iostream_type::operator=(std::move(__rhs)); |
_M_stringbuf = std::move(__rhs._M_stringbuf); |
return *this; |
} |
|
void |
swap(basic_stringstream& __rhs) |
{ |
__iostream_type::swap(__rhs); |
_M_stringbuf.swap(__rhs._M_stringbuf); |
} |
#endif |
|
// Members: |
/** |
* @brief Accessing the underlying buffer. |
* @return The current basic_stringbuf buffer. |
* |
* This hides both signatures of std::basic_ios::rdbuf(). |
*/ |
__stringbuf_type* |
rdbuf() const |
{ return const_cast<__stringbuf_type*>(&_M_stringbuf); } |
|
/** |
* @brief Copying out the string buffer. |
* @return @c rdbuf()->str() |
*/ |
__string_type |
str() const |
{ return _M_stringbuf.str(); } |
|
/** |
* @brief Setting a new buffer. |
* @param __s The string to use as a new sequence. |
* |
* Calls @c rdbuf()->str(s). |
*/ |
void |
str(const __string_type& __s) |
{ _M_stringbuf.str(__s); } |
}; |
|
#if __cplusplus >= 201103L |
/// Swap specialization for stringbufs. |
template <class _CharT, class _Traits, class _Allocator> |
inline void |
swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, |
basic_stringbuf<_CharT, _Traits, _Allocator>& __y) |
{ __x.swap(__y); } |
|
/// Swap specialization for istringstreams. |
template <class _CharT, class _Traits, class _Allocator> |
inline void |
swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, |
basic_istringstream<_CharT, _Traits, _Allocator>& __y) |
{ __x.swap(__y); } |
|
/// Swap specialization for ostringstreams. |
template <class _CharT, class _Traits, class _Allocator> |
inline void |
swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, |
basic_ostringstream<_CharT, _Traits, _Allocator>& __y) |
{ __x.swap(__y); } |
|
/// Swap specialization for stringstreams. |
template <class _CharT, class _Traits, class _Allocator> |
inline void |
swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, |
basic_stringstream<_CharT, _Traits, _Allocator>& __y) |
{ __x.swap(__y); } |
#endif |
|
_GLIBCXX_END_NAMESPACE_CXX11 |
_GLIBCXX_END_NAMESPACE_VERSION |
} // namespace |
|
#include <bits/sstream.tcc> |
|
#endif /* _GLIBCXX_SSTREAM */ |