|  | // -*- C++ -*- | 
|  | //===--------------------------- sstream ----------------------------------===// | 
|  | // | 
|  | // The LLVM Compiler Infrastructure | 
|  | // | 
|  | // This file is dual licensed under the MIT and the University of Illinois Open | 
|  | // Source Licenses. See LICENSE.TXT for details. | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #ifndef _LIBCPP_SSTREAM | 
|  | #define _LIBCPP_SSTREAM | 
|  |  | 
|  | /* | 
|  | sstream synopsis | 
|  |  | 
|  | template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > | 
|  | class basic_stringbuf | 
|  | : public basic_streambuf<charT, traits> | 
|  | { | 
|  | public: | 
|  | typedef charT char_type; | 
|  | typedef traits traits_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 Allocator allocator_type; | 
|  |  | 
|  | // 27.8.1.1 Constructors: | 
|  | explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out); | 
|  | explicit basic_stringbuf(const basic_string<char_type, traits_type, allocator_type>& str, | 
|  | ios_base::openmode which = ios_base::in | ios_base::out); | 
|  | basic_stringbuf(basic_stringbuf&& rhs); | 
|  |  | 
|  | // 27.8.1.2 Assign and swap: | 
|  | basic_stringbuf& operator=(basic_stringbuf&& rhs); | 
|  | void swap(basic_stringbuf& rhs); | 
|  |  | 
|  | // 27.8.1.3 Get and set: | 
|  | basic_string<char_type, traits_type, allocator_type> str() const; | 
|  | void str(const basic_string<char_type, traits_type, allocator_type>& s); | 
|  |  | 
|  | protected: | 
|  | // 27.8.1.4 Overridden virtual functions: | 
|  | virtual int_type underflow(); | 
|  | virtual int_type pbackfail(int_type c = traits_type::eof()); | 
|  | virtual int_type overflow (int_type c = traits_type::eof()); | 
|  | virtual basic_streambuf<char_type, traits_type>* setbuf(char_type*, streamsize); | 
|  | virtual pos_type seekoff(off_type off, ios_base::seekdir way, | 
|  | ios_base::openmode which = ios_base::in | ios_base::out); | 
|  | virtual pos_type seekpos(pos_type sp, | 
|  | ios_base::openmode which = ios_base::in | ios_base::out); | 
|  | }; | 
|  |  | 
|  | template <class charT, class traits, class Allocator> | 
|  | void swap(basic_stringbuf<charT, traits, Allocator>& x, | 
|  | basic_stringbuf<charT, traits, Allocator>& y); | 
|  |  | 
|  | typedef basic_stringbuf<char> stringbuf; | 
|  | typedef basic_stringbuf<wchar_t> wstringbuf; | 
|  |  | 
|  | template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > | 
|  | class basic_istringstream | 
|  | : public basic_istream<charT, traits> | 
|  | { | 
|  | public: | 
|  | typedef charT char_type; | 
|  | typedef traits traits_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 Allocator allocator_type; | 
|  |  | 
|  | // 27.8.2.1 Constructors: | 
|  | explicit basic_istringstream(ios_base::openmode which = ios_base::in); | 
|  | explicit basic_istringstream(const basic_string<char_type, traits_type,allocator_type>& str, | 
|  | ios_base::openmode which = ios_base::in); | 
|  | basic_istringstream(basic_istringstream&& rhs); | 
|  |  | 
|  | // 27.8.2.2 Assign and swap: | 
|  | basic_istringstream& operator=(basic_istringstream&& rhs); | 
|  | void swap(basic_istringstream& rhs); | 
|  |  | 
|  | // 27.8.2.3 Members: | 
|  | basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; | 
|  | basic_string<char_type, traits_type, allocator_type> str() const; | 
|  | void str(const basic_string<char_type, traits_type, allocator_type>& s); | 
|  | }; | 
|  |  | 
|  | template <class charT, class traits, class Allocator> | 
|  | void swap(basic_istringstream<charT, traits, Allocator>& x, | 
|  | basic_istringstream<charT, traits, Allocator>& y); | 
|  |  | 
|  | typedef basic_istringstream<char> istringstream; | 
|  | typedef basic_istringstream<wchar_t> wistringstream; | 
|  |  | 
|  | template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > | 
|  | class basic_ostringstream | 
|  | : public basic_ostream<charT, traits> | 
|  | { | 
|  | public: | 
|  | // types: | 
|  | typedef charT char_type; | 
|  | typedef traits traits_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 Allocator allocator_type; | 
|  |  | 
|  | // 27.8.3.1 Constructors/destructor: | 
|  | explicit basic_ostringstream(ios_base::openmode which = ios_base::out); | 
|  | explicit basic_ostringstream(const basic_string<char_type, traits_type, allocator_type>& str, | 
|  | ios_base::openmode which = ios_base::out); | 
|  | basic_ostringstream(basic_ostringstream&& rhs); | 
|  |  | 
|  | // 27.8.3.2 Assign/swap: | 
|  | basic_ostringstream& operator=(basic_ostringstream&& rhs); | 
|  | void swap(basic_ostringstream& rhs); | 
|  |  | 
|  | // 27.8.3.3 Members: | 
|  | basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; | 
|  | basic_string<char_type, traits_type, allocator_type> str() const; | 
|  | void str(const basic_string<char_type, traits_type, allocator_type>& s); | 
|  | }; | 
|  |  | 
|  | template <class charT, class traits, class Allocator> | 
|  | void swap(basic_ostringstream<charT, traits, Allocator>& x, | 
|  | basic_ostringstream<charT, traits, Allocator>& y); | 
|  |  | 
|  | typedef basic_ostringstream<char> ostringstream; | 
|  | typedef basic_ostringstream<wchar_t> wostringstream; | 
|  |  | 
|  | template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> > | 
|  | class basic_stringstream | 
|  | : public basic_iostream<charT, traits> | 
|  | { | 
|  | public: | 
|  | // types: | 
|  | typedef charT char_type; | 
|  | typedef traits traits_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 Allocator allocator_type; | 
|  |  | 
|  | // constructors/destructor | 
|  | explicit basic_stringstream(ios_base::openmode which = ios_base::out|ios_base::in); | 
|  | explicit basic_stringstream(const basic_string<char_type, traits_type, allocator_type>& str, | 
|  | ios_base::openmode which = ios_base::out|ios_base::in); | 
|  | basic_stringstream(basic_stringstream&& rhs); | 
|  |  | 
|  | // 27.8.5.1 Assign/swap: | 
|  | basic_stringstream& operator=(basic_stringstream&& rhs); | 
|  | void swap(basic_stringstream& rhs); | 
|  |  | 
|  | // Members: | 
|  | basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; | 
|  | basic_string<char_type, traits_type, allocator_type> str() const; | 
|  | void str(const basic_string<char_type, traits_type, allocator_type>& str); | 
|  | }; | 
|  |  | 
|  | template <class charT, class traits, class Allocator> | 
|  | void swap(basic_stringstream<charT, traits, Allocator>& x, | 
|  | basic_stringstream<charT, traits, Allocator>& y); | 
|  |  | 
|  | typedef basic_stringstream<char> stringstream; | 
|  | typedef basic_stringstream<wchar_t> wstringstream; | 
|  |  | 
|  | } // std | 
|  |  | 
|  | */ | 
|  |  | 
|  | #include <__config> | 
|  | #include <ostream> | 
|  | #include <istream> | 
|  | #include <string> | 
|  |  | 
|  | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #pragma GCC system_header | 
|  | #endif | 
|  |  | 
|  | _LIBCPP_PUSH_MACROS | 
|  | #include <__undef_macros> | 
|  |  | 
|  |  | 
|  | _LIBCPP_BEGIN_NAMESPACE_STD | 
|  |  | 
|  | // basic_stringbuf | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | class _LIBCPP_TEMPLATE_VIS basic_stringbuf | 
|  | : public basic_streambuf<_CharT, _Traits> | 
|  | { | 
|  | public: | 
|  | typedef _CharT char_type; | 
|  | typedef _Traits traits_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 _Allocator allocator_type; | 
|  |  | 
|  | typedef basic_string<char_type, traits_type, allocator_type> string_type; | 
|  |  | 
|  | private: | 
|  |  | 
|  | string_type __str_; | 
|  | mutable char_type* __hm_; | 
|  | ios_base::openmode __mode_; | 
|  |  | 
|  | public: | 
|  | // 27.8.1.1 Constructors: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_stringbuf(ios_base::openmode __wch = ios_base::in | ios_base::out); | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_stringbuf(const string_type& __s, | 
|  | ios_base::openmode __wch = ios_base::in | ios_base::out); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | basic_stringbuf(basic_stringbuf&& __rhs); | 
|  |  | 
|  | // 27.8.1.2 Assign and swap: | 
|  | basic_stringbuf& operator=(basic_stringbuf&& __rhs); | 
|  | #endif | 
|  | void swap(basic_stringbuf& __rhs); | 
|  |  | 
|  | // 27.8.1.3 Get and set: | 
|  | string_type str() const; | 
|  | void str(const string_type& __s); | 
|  |  | 
|  | protected: | 
|  | // 27.8.1.4 Overridden virtual functions: | 
|  | virtual int_type underflow(); | 
|  | virtual int_type pbackfail(int_type __c = traits_type::eof()); | 
|  | virtual int_type overflow (int_type __c = traits_type::eof()); | 
|  | virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, | 
|  | ios_base::openmode __wch = ios_base::in | ios_base::out); | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | virtual pos_type seekpos(pos_type __sp, | 
|  | ios_base::openmode __wch = ios_base::in | ios_base::out); | 
|  | }; | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(ios_base::openmode __wch) | 
|  | : __hm_(0), | 
|  | __mode_(__wch) | 
|  | { | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(const string_type& __s, | 
|  | ios_base::openmode __wch) | 
|  | : __str_(__s.get_allocator()), | 
|  | __hm_(0), | 
|  | __mode_(__wch) | 
|  | { | 
|  | str(__s); | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::basic_stringbuf(basic_stringbuf&& __rhs) | 
|  | : __mode_(__rhs.__mode_) | 
|  | { | 
|  | char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); | 
|  | ptrdiff_t __binp = -1; | 
|  | ptrdiff_t __ninp = -1; | 
|  | ptrdiff_t __einp = -1; | 
|  | if (__rhs.eback() != nullptr) | 
|  | { | 
|  | __binp = __rhs.eback() - __p; | 
|  | __ninp = __rhs.gptr() - __p; | 
|  | __einp = __rhs.egptr() - __p; | 
|  | } | 
|  | ptrdiff_t __bout = -1; | 
|  | ptrdiff_t __nout = -1; | 
|  | ptrdiff_t __eout = -1; | 
|  | if (__rhs.pbase() != nullptr) | 
|  | { | 
|  | __bout = __rhs.pbase() - __p; | 
|  | __nout = __rhs.pptr() - __p; | 
|  | __eout = __rhs.epptr() - __p; | 
|  | } | 
|  | ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; | 
|  | __str_ = _VSTD::move(__rhs.__str_); | 
|  | __p = const_cast<char_type*>(__str_.data()); | 
|  | if (__binp != -1) | 
|  | this->setg(__p + __binp, __p + __ninp, __p + __einp); | 
|  | if (__bout != -1) | 
|  | { | 
|  | this->setp(__p + __bout, __p + __eout); | 
|  | this->__pbump(__nout); | 
|  | } | 
|  | __hm_ = __hm == -1 ? nullptr : __p + __hm; | 
|  | __p = const_cast<char_type*>(__rhs.__str_.data()); | 
|  | __rhs.setg(__p, __p, __p); | 
|  | __rhs.setp(__p, __p); | 
|  | __rhs.__hm_ = __p; | 
|  | this->pubimbue(__rhs.getloc()); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>& | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::operator=(basic_stringbuf&& __rhs) | 
|  | { | 
|  | char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); | 
|  | ptrdiff_t __binp = -1; | 
|  | ptrdiff_t __ninp = -1; | 
|  | ptrdiff_t __einp = -1; | 
|  | if (__rhs.eback() != nullptr) | 
|  | { | 
|  | __binp = __rhs.eback() - __p; | 
|  | __ninp = __rhs.gptr() - __p; | 
|  | __einp = __rhs.egptr() - __p; | 
|  | } | 
|  | ptrdiff_t __bout = -1; | 
|  | ptrdiff_t __nout = -1; | 
|  | ptrdiff_t __eout = -1; | 
|  | if (__rhs.pbase() != nullptr) | 
|  | { | 
|  | __bout = __rhs.pbase() - __p; | 
|  | __nout = __rhs.pptr() - __p; | 
|  | __eout = __rhs.epptr() - __p; | 
|  | } | 
|  | ptrdiff_t __hm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; | 
|  | __str_ = _VSTD::move(__rhs.__str_); | 
|  | __p = const_cast<char_type*>(__str_.data()); | 
|  | if (__binp != -1) | 
|  | this->setg(__p + __binp, __p + __ninp, __p + __einp); | 
|  | else | 
|  | this->setg(nullptr, nullptr, nullptr); | 
|  | if (__bout != -1) | 
|  | { | 
|  | this->setp(__p + __bout, __p + __eout); | 
|  | this->__pbump(__nout); | 
|  | } | 
|  | else | 
|  | this->setp(nullptr, nullptr); | 
|  |  | 
|  | __hm_ = __hm == -1 ? nullptr : __p + __hm; | 
|  | __mode_ = __rhs.__mode_; | 
|  | __p = const_cast<char_type*>(__rhs.__str_.data()); | 
|  | __rhs.setg(__p, __p, __p); | 
|  | __rhs.setp(__p, __p); | 
|  | __rhs.__hm_ = __p; | 
|  | this->pubimbue(__rhs.getloc()); | 
|  | return *this; | 
|  | } | 
|  |  | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::swap(basic_stringbuf& __rhs) | 
|  | { | 
|  | char_type* __p = const_cast<char_type*>(__rhs.__str_.data()); | 
|  | ptrdiff_t __rbinp = -1; | 
|  | ptrdiff_t __rninp = -1; | 
|  | ptrdiff_t __reinp = -1; | 
|  | if (__rhs.eback() != nullptr) | 
|  | { | 
|  | __rbinp = __rhs.eback() - __p; | 
|  | __rninp = __rhs.gptr() - __p; | 
|  | __reinp = __rhs.egptr() - __p; | 
|  | } | 
|  | ptrdiff_t __rbout = -1; | 
|  | ptrdiff_t __rnout = -1; | 
|  | ptrdiff_t __reout = -1; | 
|  | if (__rhs.pbase() != nullptr) | 
|  | { | 
|  | __rbout = __rhs.pbase() - __p; | 
|  | __rnout = __rhs.pptr() - __p; | 
|  | __reout = __rhs.epptr() - __p; | 
|  | } | 
|  | ptrdiff_t __rhm = __rhs.__hm_ == nullptr ? -1 : __rhs.__hm_ - __p; | 
|  | __p = const_cast<char_type*>(__str_.data()); | 
|  | ptrdiff_t __lbinp = -1; | 
|  | ptrdiff_t __lninp = -1; | 
|  | ptrdiff_t __leinp = -1; | 
|  | if (this->eback() != nullptr) | 
|  | { | 
|  | __lbinp = this->eback() - __p; | 
|  | __lninp = this->gptr() - __p; | 
|  | __leinp = this->egptr() - __p; | 
|  | } | 
|  | ptrdiff_t __lbout = -1; | 
|  | ptrdiff_t __lnout = -1; | 
|  | ptrdiff_t __leout = -1; | 
|  | if (this->pbase() != nullptr) | 
|  | { | 
|  | __lbout = this->pbase() - __p; | 
|  | __lnout = this->pptr() - __p; | 
|  | __leout = this->epptr() - __p; | 
|  | } | 
|  | ptrdiff_t __lhm = __hm_ == nullptr ? -1 : __hm_ - __p; | 
|  | _VSTD::swap(__mode_, __rhs.__mode_); | 
|  | __str_.swap(__rhs.__str_); | 
|  | __p = const_cast<char_type*>(__str_.data()); | 
|  | if (__rbinp != -1) | 
|  | this->setg(__p + __rbinp, __p + __rninp, __p + __reinp); | 
|  | else | 
|  | this->setg(nullptr, nullptr, nullptr); | 
|  | if (__rbout != -1) | 
|  | { | 
|  | this->setp(__p + __rbout, __p + __reout); | 
|  | this->__pbump(__rnout); | 
|  | } | 
|  | else | 
|  | this->setp(nullptr, nullptr); | 
|  | __hm_ = __rhm == -1 ? nullptr : __p + __rhm; | 
|  | __p = const_cast<char_type*>(__rhs.__str_.data()); | 
|  | if (__lbinp != -1) | 
|  | __rhs.setg(__p + __lbinp, __p + __lninp, __p + __leinp); | 
|  | else | 
|  | __rhs.setg(nullptr, nullptr, nullptr); | 
|  | if (__lbout != -1) | 
|  | { | 
|  | __rhs.setp(__p + __lbout, __p + __leout); | 
|  | __rhs.__pbump(__lnout); | 
|  | } | 
|  | else | 
|  | __rhs.setp(nullptr, nullptr); | 
|  | __rhs.__hm_ = __lhm == -1 ? nullptr : __p + __lhm; | 
|  | locale __tl = __rhs.getloc(); | 
|  | __rhs.pubimbue(this->getloc()); | 
|  | this->pubimbue(__tl); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void | 
|  | swap(basic_stringbuf<_CharT, _Traits, _Allocator>& __x, | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>& __y) | 
|  | { | 
|  | __x.swap(__y); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_string<_CharT, _Traits, _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::str() const | 
|  | { | 
|  | if (__mode_ & ios_base::out) | 
|  | { | 
|  | if (__hm_ < this->pptr()) | 
|  | __hm_ = this->pptr(); | 
|  | return string_type(this->pbase(), __hm_, __str_.get_allocator()); | 
|  | } | 
|  | else if (__mode_ & ios_base::in) | 
|  | return string_type(this->eback(), this->egptr(), __str_.get_allocator()); | 
|  | return string_type(__str_.get_allocator()); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::str(const string_type& __s) | 
|  | { | 
|  | __str_ = __s; | 
|  | __hm_ = 0; | 
|  | if (__mode_ & ios_base::in) | 
|  | { | 
|  | __hm_ = const_cast<char_type*>(__str_.data()) + __str_.size(); | 
|  | this->setg(const_cast<char_type*>(__str_.data()), | 
|  | const_cast<char_type*>(__str_.data()), | 
|  | __hm_); | 
|  | } | 
|  | if (__mode_ & ios_base::out) | 
|  | { | 
|  | typename string_type::size_type __sz = __str_.size(); | 
|  | __hm_ = const_cast<char_type*>(__str_.data()) + __sz; | 
|  | __str_.resize(__str_.capacity()); | 
|  | this->setp(const_cast<char_type*>(__str_.data()), | 
|  | const_cast<char_type*>(__str_.data()) + __str_.size()); | 
|  | if (__mode_ & (ios_base::app | ios_base::ate)) | 
|  | { | 
|  | while (__sz > INT_MAX) | 
|  | { | 
|  | this->pbump(INT_MAX); | 
|  | __sz -= INT_MAX; | 
|  | } | 
|  | if (__sz > 0) | 
|  | this->pbump(__sz); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::underflow() | 
|  | { | 
|  | if (__hm_ < this->pptr()) | 
|  | __hm_ = this->pptr(); | 
|  | if (__mode_ & ios_base::in) | 
|  | { | 
|  | if (this->egptr() < __hm_) | 
|  | this->setg(this->eback(), this->gptr(), __hm_); | 
|  | if (this->gptr() < this->egptr()) | 
|  | return traits_type::to_int_type(*this->gptr()); | 
|  | } | 
|  | return traits_type::eof(); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::pbackfail(int_type __c) | 
|  | { | 
|  | if (__hm_ < this->pptr()) | 
|  | __hm_ = this->pptr(); | 
|  | if (this->eback() < this->gptr()) | 
|  | { | 
|  | if (traits_type::eq_int_type(__c, traits_type::eof())) | 
|  | { | 
|  | this->setg(this->eback(), this->gptr()-1, __hm_); | 
|  | return traits_type::not_eof(__c); | 
|  | } | 
|  | if ((__mode_ & ios_base::out) || | 
|  | traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) | 
|  | { | 
|  | this->setg(this->eback(), this->gptr()-1, __hm_); | 
|  | *this->gptr() = traits_type::to_char_type(__c); | 
|  | return __c; | 
|  | } | 
|  | } | 
|  | return traits_type::eof(); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | typename basic_stringbuf<_CharT, _Traits, _Allocator>::int_type | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::overflow(int_type __c) | 
|  | { | 
|  | if (!traits_type::eq_int_type(__c, traits_type::eof())) | 
|  | { | 
|  | ptrdiff_t __ninp = this->gptr() - this->eback(); | 
|  | if (this->pptr() == this->epptr()) | 
|  | { | 
|  | if (!(__mode_ & ios_base::out)) | 
|  | return traits_type::eof(); | 
|  | #ifndef _LIBCPP_NO_EXCEPTIONS | 
|  | try | 
|  | { | 
|  | #endif // _LIBCPP_NO_EXCEPTIONS | 
|  | ptrdiff_t __nout = this->pptr() - this->pbase(); | 
|  | ptrdiff_t __hm = __hm_ - this->pbase(); | 
|  | __str_.push_back(char_type()); | 
|  | __str_.resize(__str_.capacity()); | 
|  | char_type* __p = const_cast<char_type*>(__str_.data()); | 
|  | this->setp(__p, __p + __str_.size()); | 
|  | this->__pbump(__nout); | 
|  | __hm_ = this->pbase() + __hm; | 
|  | #ifndef _LIBCPP_NO_EXCEPTIONS | 
|  | } | 
|  | catch (...) | 
|  | { | 
|  | return traits_type::eof(); | 
|  | } | 
|  | #endif // _LIBCPP_NO_EXCEPTIONS | 
|  | } | 
|  | __hm_ = _VSTD::max(this->pptr() + 1, __hm_); | 
|  | if (__mode_ & ios_base::in) | 
|  | { | 
|  | char_type* __p = const_cast<char_type*>(__str_.data()); | 
|  | this->setg(__p, __p + __ninp, __hm_); | 
|  | } | 
|  | return this->sputc(__c); | 
|  | } | 
|  | return traits_type::not_eof(__c); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::seekoff(off_type __off, | 
|  | ios_base::seekdir __way, | 
|  | ios_base::openmode __wch) | 
|  | { | 
|  | if (__hm_ < this->pptr()) | 
|  | __hm_ = this->pptr(); | 
|  | if ((__wch & (ios_base::in | ios_base::out)) == 0) | 
|  | return pos_type(-1); | 
|  | if ((__wch & (ios_base::in | ios_base::out)) == (ios_base::in | ios_base::out) | 
|  | && __way == ios_base::cur) | 
|  | return pos_type(-1); | 
|  | const ptrdiff_t __hm = __hm_ == nullptr ? 0 : __hm_ - __str_.data(); | 
|  | off_type __noff; | 
|  | switch (__way) | 
|  | { | 
|  | case ios_base::beg: | 
|  | __noff = 0; | 
|  | break; | 
|  | case ios_base::cur: | 
|  | if (__wch & ios_base::in) | 
|  | __noff = this->gptr() - this->eback(); | 
|  | else | 
|  | __noff = this->pptr() - this->pbase(); | 
|  | break; | 
|  | case ios_base::end: | 
|  | __noff = __hm; | 
|  | break; | 
|  | default: | 
|  | return pos_type(-1); | 
|  | } | 
|  | __noff += __off; | 
|  | if (__noff < 0 || __hm < __noff) | 
|  | return pos_type(-1); | 
|  | if (__noff != 0) | 
|  | { | 
|  | if ((__wch & ios_base::in) && this->gptr() == 0) | 
|  | return pos_type(-1); | 
|  | if ((__wch & ios_base::out) && this->pptr() == 0) | 
|  | return pos_type(-1); | 
|  | } | 
|  | if (__wch & ios_base::in) | 
|  | this->setg(this->eback(), this->eback() + __noff, __hm_); | 
|  | if (__wch & ios_base::out) | 
|  | { | 
|  | this->setp(this->pbase(), this->epptr()); | 
|  | this->pbump(__noff); | 
|  | } | 
|  | return pos_type(__noff); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | typename basic_stringbuf<_CharT, _Traits, _Allocator>::pos_type | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>::seekpos(pos_type __sp, | 
|  | ios_base::openmode __wch) | 
|  | { | 
|  | return seekoff(__sp, ios_base::beg, __wch); | 
|  | } | 
|  |  | 
|  | // basic_istringstream | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | class _LIBCPP_TEMPLATE_VIS basic_istringstream | 
|  | : public basic_istream<_CharT, _Traits> | 
|  | { | 
|  | public: | 
|  | typedef _CharT char_type; | 
|  | typedef _Traits traits_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 _Allocator allocator_type; | 
|  |  | 
|  | typedef basic_string<char_type, traits_type, allocator_type> string_type; | 
|  |  | 
|  | private: | 
|  | basic_stringbuf<char_type, traits_type, allocator_type> __sb_; | 
|  |  | 
|  | public: | 
|  | // 27.8.2.1 Constructors: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_istringstream(ios_base::openmode __wch = ios_base::in); | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_istringstream(const string_type& __s, | 
|  | ios_base::openmode __wch = ios_base::in); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | basic_istringstream(basic_istringstream&& __rhs); | 
|  |  | 
|  | // 27.8.2.2 Assign and swap: | 
|  | basic_istringstream& operator=(basic_istringstream&& __rhs); | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void swap(basic_istringstream& __rhs); | 
|  |  | 
|  | // 27.8.2.3 Members: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | string_type str() const; | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void str(const string_type& __s); | 
|  | }; | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(ios_base::openmode __wch) | 
|  | : basic_istream<_CharT, _Traits>(&__sb_), | 
|  | __sb_(__wch | ios_base::in) | 
|  | { | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(const string_type& __s, | 
|  | ios_base::openmode __wch) | 
|  | : basic_istream<_CharT, _Traits>(&__sb_), | 
|  | __sb_(__s, __wch | ios_base::in) | 
|  | { | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>::basic_istringstream(basic_istringstream&& __rhs) | 
|  | : basic_istream<_CharT, _Traits>(_VSTD::move(__rhs)), | 
|  | __sb_(_VSTD::move(__rhs.__sb_)) | 
|  | { | 
|  | basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>& | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>::operator=(basic_istringstream&& __rhs) | 
|  | { | 
|  | basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); | 
|  | __sb_ = _VSTD::move(__rhs.__sb_); | 
|  | return *this; | 
|  | } | 
|  |  | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void basic_istringstream<_CharT, _Traits, _Allocator>::swap(basic_istringstream& __rhs) | 
|  | { | 
|  | basic_istream<char_type, traits_type>::swap(__rhs); | 
|  | __sb_.swap(__rhs.__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void | 
|  | swap(basic_istringstream<_CharT, _Traits, _Allocator>& __x, | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>& __y) | 
|  | { | 
|  | __x.swap(__y); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>* | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>::rdbuf() const | 
|  | { | 
|  | return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_string<_CharT, _Traits, _Allocator> | 
|  | basic_istringstream<_CharT, _Traits, _Allocator>::str() const | 
|  | { | 
|  | return __sb_.str(); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void basic_istringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s) | 
|  | { | 
|  | __sb_.str(__s); | 
|  | } | 
|  |  | 
|  | // basic_ostringstream | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | class _LIBCPP_TEMPLATE_VIS basic_ostringstream | 
|  | : public basic_ostream<_CharT, _Traits> | 
|  | { | 
|  | public: | 
|  | typedef _CharT char_type; | 
|  | typedef _Traits traits_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 _Allocator allocator_type; | 
|  |  | 
|  | typedef basic_string<char_type, traits_type, allocator_type> string_type; | 
|  |  | 
|  | private: | 
|  | basic_stringbuf<char_type, traits_type, allocator_type> __sb_; | 
|  |  | 
|  | public: | 
|  | // 27.8.2.1 Constructors: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_ostringstream(ios_base::openmode __wch = ios_base::out); | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_ostringstream(const string_type& __s, | 
|  | ios_base::openmode __wch = ios_base::out); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | basic_ostringstream(basic_ostringstream&& __rhs); | 
|  |  | 
|  | // 27.8.2.2 Assign and swap: | 
|  | basic_ostringstream& operator=(basic_ostringstream&& __rhs); | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void swap(basic_ostringstream& __rhs); | 
|  |  | 
|  | // 27.8.2.3 Members: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | string_type str() const; | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void str(const string_type& __s); | 
|  | }; | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(ios_base::openmode __wch) | 
|  | : basic_ostream<_CharT, _Traits>(&__sb_), | 
|  | __sb_(__wch | ios_base::out) | 
|  | { | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(const string_type& __s, | 
|  | ios_base::openmode __wch) | 
|  | : basic_ostream<_CharT, _Traits>(&__sb_), | 
|  | __sb_(__s, __wch | ios_base::out) | 
|  | { | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::basic_ostringstream(basic_ostringstream&& __rhs) | 
|  | : basic_ostream<_CharT, _Traits>(_VSTD::move(__rhs)), | 
|  | __sb_(_VSTD::move(__rhs.__sb_)) | 
|  | { | 
|  | basic_ostream<_CharT, _Traits>::set_rdbuf(&__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>& | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::operator=(basic_ostringstream&& __rhs) | 
|  | { | 
|  | basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); | 
|  | __sb_ = _VSTD::move(__rhs.__sb_); | 
|  | return *this; | 
|  | } | 
|  |  | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::swap(basic_ostringstream& __rhs) | 
|  | { | 
|  | basic_ostream<char_type, traits_type>::swap(__rhs); | 
|  | __sb_.swap(__rhs.__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void | 
|  | swap(basic_ostringstream<_CharT, _Traits, _Allocator>& __x, | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>& __y) | 
|  | { | 
|  | __x.swap(__y); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>* | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::rdbuf() const | 
|  | { | 
|  | return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_string<_CharT, _Traits, _Allocator> | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::str() const | 
|  | { | 
|  | return __sb_.str(); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void | 
|  | basic_ostringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s) | 
|  | { | 
|  | __sb_.str(__s); | 
|  | } | 
|  |  | 
|  | // basic_stringstream | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | class _LIBCPP_TEMPLATE_VIS basic_stringstream | 
|  | : public basic_iostream<_CharT, _Traits> | 
|  | { | 
|  | public: | 
|  | typedef _CharT char_type; | 
|  | typedef _Traits traits_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 _Allocator allocator_type; | 
|  |  | 
|  | typedef basic_string<char_type, traits_type, allocator_type> string_type; | 
|  |  | 
|  | private: | 
|  | basic_stringbuf<char_type, traits_type, allocator_type> __sb_; | 
|  |  | 
|  | public: | 
|  | // 27.8.2.1 Constructors: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_stringstream(ios_base::openmode __wch = ios_base::in | ios_base::out); | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | explicit basic_stringstream(const string_type& __s, | 
|  | ios_base::openmode __wch = ios_base::in | ios_base::out); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | basic_stringstream(basic_stringstream&& __rhs); | 
|  |  | 
|  | // 27.8.2.2 Assign and swap: | 
|  | basic_stringstream& operator=(basic_stringstream&& __rhs); | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void swap(basic_stringstream& __rhs); | 
|  |  | 
|  | // 27.8.2.3 Members: | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | basic_stringbuf<char_type, traits_type, allocator_type>* rdbuf() const; | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | string_type str() const; | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void str(const string_type& __s); | 
|  | }; | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(ios_base::openmode __wch) | 
|  | : basic_iostream<_CharT, _Traits>(&__sb_), | 
|  | __sb_(__wch) | 
|  | { | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(const string_type& __s, | 
|  | ios_base::openmode __wch) | 
|  | : basic_iostream<_CharT, _Traits>(&__sb_), | 
|  | __sb_(__s, __wch) | 
|  | { | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::basic_stringstream(basic_stringstream&& __rhs) | 
|  | : basic_iostream<_CharT, _Traits>(_VSTD::move(__rhs)), | 
|  | __sb_(_VSTD::move(__rhs.__sb_)) | 
|  | { | 
|  | basic_istream<_CharT, _Traits>::set_rdbuf(&__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>& | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::operator=(basic_stringstream&& __rhs) | 
|  | { | 
|  | basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); | 
|  | __sb_ = _VSTD::move(__rhs.__sb_); | 
|  | return *this; | 
|  | } | 
|  |  | 
|  | #endif // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::swap(basic_stringstream& __rhs) | 
|  | { | 
|  | basic_iostream<char_type, traits_type>::swap(__rhs); | 
|  | __sb_.swap(__rhs.__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | void | 
|  | swap(basic_stringstream<_CharT, _Traits, _Allocator>& __x, | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>& __y) | 
|  | { | 
|  | __x.swap(__y); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_stringbuf<_CharT, _Traits, _Allocator>* | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::rdbuf() const | 
|  | { | 
|  | return const_cast<basic_stringbuf<char_type, traits_type, allocator_type>*>(&__sb_); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | basic_string<_CharT, _Traits, _Allocator> | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::str() const | 
|  | { | 
|  | return __sb_.str(); | 
|  | } | 
|  |  | 
|  | template <class _CharT, class _Traits, class _Allocator> | 
|  | void | 
|  | basic_stringstream<_CharT, _Traits, _Allocator>::str(const string_type& __s) | 
|  | { | 
|  | __sb_.str(__s); | 
|  | } | 
|  |  | 
|  | _LIBCPP_END_NAMESPACE_STD | 
|  |  | 
|  | _LIBCPP_POP_MACROS | 
|  |  | 
|  | #endif // _LIBCPP_SSTREAM |