fstream revision 249989
1227825Stheraven// -*- C++ -*- 2227825Stheraven//===------------------------- fstream ------------------------------------===// 3227825Stheraven// 4227825Stheraven// The LLVM Compiler Infrastructure 5227825Stheraven// 6227825Stheraven// This file is dual licensed under the MIT and the University of Illinois Open 7227825Stheraven// Source Licenses. See LICENSE.TXT for details. 8227825Stheraven// 9227825Stheraven//===----------------------------------------------------------------------===// 10227825Stheraven 11227825Stheraven#ifndef _LIBCPP_FSTREAM 12227825Stheraven#define _LIBCPP_FSTREAM 13227825Stheraven 14227825Stheraven/* 15227825Stheraven fstream synopsis 16227825Stheraven 17227825Stheraventemplate <class charT, class traits = char_traits<charT> > 18227825Stheravenclass basic_filebuf 19227825Stheraven : public basic_streambuf<charT, traits> 20227825Stheraven{ 21227825Stheravenpublic: 22227825Stheraven typedef charT char_type; 23227825Stheraven typedef traits traits_type; 24227825Stheraven typedef typename traits_type::int_type int_type; 25227825Stheraven typedef typename traits_type::pos_type pos_type; 26227825Stheraven typedef typename traits_type::off_type off_type; 27227825Stheraven 28227825Stheraven // 27.9.1.2 Constructors/destructor: 29227825Stheraven basic_filebuf(); 30227825Stheraven basic_filebuf(basic_filebuf&& rhs); 31227825Stheraven virtual ~basic_filebuf(); 32227825Stheraven 33227825Stheraven // 27.9.1.3 Assign/swap: 34227825Stheraven basic_filebuf& operator=(basic_filebuf&& rhs); 35227825Stheraven void swap(basic_filebuf& rhs); 36227825Stheraven 37227825Stheraven // 27.9.1.4 Members: 38227825Stheraven bool is_open() const; 39227825Stheraven basic_filebuf* open(const char* s, ios_base::openmode mode); 40227825Stheraven basic_filebuf* open(const string& s, ios_base::openmode mode); 41227825Stheraven basic_filebuf* close(); 42227825Stheraven 43227825Stheravenprotected: 44227825Stheraven // 27.9.1.5 Overridden virtual functions: 45227825Stheraven virtual streamsize showmanyc(); 46227825Stheraven virtual int_type underflow(); 47227825Stheraven virtual int_type uflow(); 48227825Stheraven virtual int_type pbackfail(int_type c = traits_type::eof()); 49227825Stheraven virtual int_type overflow (int_type c = traits_type::eof()); 50227825Stheraven virtual basic_streambuf<char_type, traits_type>* setbuf(char_type* s, streamsize n); 51227825Stheraven virtual pos_type seekoff(off_type off, ios_base::seekdir way, 52227825Stheraven ios_base::openmode which = ios_base::in | ios_base::out); 53227825Stheraven virtual pos_type seekpos(pos_type sp, 54227825Stheraven ios_base::openmode which = ios_base::in | ios_base::out); 55227825Stheraven virtual int sync(); 56227825Stheraven virtual void imbue(const locale& loc); 57227825Stheraven}; 58227825Stheraven 59227825Stheraventemplate <class charT, class traits> 60227825Stheraven void 61227825Stheraven swap(basic_filebuf<charT, traits>& x, basic_filebuf<charT, traits>& y); 62227825Stheraven 63227825Stheraventypedef basic_filebuf<char> filebuf; 64227825Stheraventypedef basic_filebuf<wchar_t> wfilebuf; 65227825Stheraven 66227825Stheraventemplate <class charT, class traits = char_traits<charT> > 67227825Stheravenclass basic_ifstream 68227825Stheraven : public basic_istream<charT,traits> 69227825Stheraven{ 70227825Stheravenpublic: 71227825Stheraven typedef charT char_type; 72227825Stheraven typedef traits traits_type; 73227825Stheraven typedef typename traits_type::int_type int_type; 74227825Stheraven typedef typename traits_type::pos_type pos_type; 75227825Stheraven typedef typename traits_type::off_type off_type; 76227825Stheraven 77227825Stheraven basic_ifstream(); 78227825Stheraven explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::in); 79227825Stheraven explicit basic_ifstream(const string& s, ios_base::openmode mode = ios_base::in); 80227825Stheraven basic_ifstream(basic_ifstream&& rhs); 81227825Stheraven 82227825Stheraven basic_ifstream& operator=(basic_ifstream&& rhs); 83227825Stheraven void swap(basic_ifstream& rhs); 84227825Stheraven 85227825Stheraven basic_filebuf<char_type, traits_type>* rdbuf() const; 86227825Stheraven bool is_open() const; 87227825Stheraven void open(const char* s, ios_base::openmode mode = ios_base::in); 88227825Stheraven void open(const string& s, ios_base::openmode mode = ios_base::in); 89227825Stheraven void close(); 90227825Stheraven}; 91227825Stheraven 92227825Stheraventemplate <class charT, class traits> 93227825Stheraven void 94227825Stheraven swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y); 95227825Stheraven 96227825Stheraventypedef basic_ifstream<char> ifstream; 97227825Stheraventypedef basic_ifstream<wchar_t> wifstream; 98227825Stheraven 99227825Stheraventemplate <class charT, class traits = char_traits<charT> > 100227825Stheravenclass basic_ofstream 101227825Stheraven : public basic_ostream<charT,traits> 102227825Stheraven{ 103227825Stheravenpublic: 104227825Stheraven typedef charT char_type; 105227825Stheraven typedef traits traits_type; 106227825Stheraven typedef typename traits_type::int_type int_type; 107227825Stheraven typedef typename traits_type::pos_type pos_type; 108227825Stheraven typedef typename traits_type::off_type off_type; 109227825Stheraven 110227825Stheraven basic_ofstream(); 111227825Stheraven explicit basic_ofstream(const char* s, ios_base::openmode mode = ios_base::out); 112227825Stheraven explicit basic_ofstream(const string& s, ios_base::openmode mode = ios_base::out); 113227825Stheraven basic_ofstream(basic_ofstream&& rhs); 114227825Stheraven 115227825Stheraven basic_ofstream& operator=(basic_ofstream&& rhs); 116227825Stheraven void swap(basic_ofstream& rhs); 117227825Stheraven 118227825Stheraven basic_filebuf<char_type, traits_type>* rdbuf() const; 119227825Stheraven bool is_open() const; 120227825Stheraven void open(const char* s, ios_base::openmode mode = ios_base::out); 121227825Stheraven void open(const string& s, ios_base::openmode mode = ios_base::out); 122227825Stheraven void close(); 123227825Stheraven}; 124227825Stheraven 125227825Stheraventemplate <class charT, class traits> 126227825Stheraven void 127227825Stheraven swap(basic_ofstream<charT, traits>& x, basic_ofstream<charT, traits>& y); 128227825Stheraven 129227825Stheraventypedef basic_ofstream<char> ofstream; 130227825Stheraventypedef basic_ofstream<wchar_t> wofstream; 131227825Stheraven 132227825Stheraventemplate <class charT, class traits=char_traits<charT> > 133227825Stheravenclass basic_fstream 134227825Stheraven : public basic_iostream<charT,traits> 135227825Stheraven{ 136227825Stheravenpublic: 137227825Stheraven typedef charT char_type; 138227825Stheraven typedef traits traits_type; 139227825Stheraven typedef typename traits_type::int_type int_type; 140227825Stheraven typedef typename traits_type::pos_type pos_type; 141227825Stheraven typedef typename traits_type::off_type off_type; 142227825Stheraven 143227825Stheraven basic_fstream(); 144227825Stheraven explicit basic_fstream(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out); 145227825Stheraven explicit basic_fstream(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out); 146227825Stheraven basic_fstream(basic_fstream&& rhs); 147227825Stheraven 148227825Stheraven basic_fstream& operator=(basic_fstream&& rhs); 149227825Stheraven void swap(basic_fstream& rhs); 150227825Stheraven 151227825Stheraven basic_filebuf<char_type, traits_type>* rdbuf() const; 152227825Stheraven bool is_open() const; 153227825Stheraven void open(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out); 154227825Stheraven void open(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out); 155227825Stheraven void close(); 156227825Stheraven}; 157227825Stheraven 158227825Stheraventemplate <class charT, class traits> 159227825Stheraven void swap(basic_fstream<charT, traits>& x, basic_fstream<charT, traits>& y); 160227825Stheraven 161227825Stheraventypedef basic_fstream<char> fstream; 162227825Stheraventypedef basic_fstream<wchar_t> wfstream; 163227825Stheraven 164227825Stheraven} // std 165227825Stheraven 166227825Stheraven*/ 167227825Stheraven 168227825Stheraven#include <__config> 169227825Stheraven#include <ostream> 170227825Stheraven#include <istream> 171227825Stheraven#include <__locale> 172227825Stheraven#include <cstdio> 173227825Stheraven 174232924Stheraven#include <__undef_min_max> 175232924Stheraven 176227825Stheraven#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 177227825Stheraven#pragma GCC system_header 178227825Stheraven#endif 179227825Stheraven 180227825Stheraven_LIBCPP_BEGIN_NAMESPACE_STD 181227825Stheraven 182227825Stheraventemplate <class _CharT, class _Traits> 183249989Sdimclass _LIBCPP_TYPE_VIS basic_filebuf 184227825Stheraven : public basic_streambuf<_CharT, _Traits> 185227825Stheraven{ 186227825Stheravenpublic: 187227825Stheraven typedef _CharT char_type; 188227825Stheraven typedef _Traits traits_type; 189227825Stheraven typedef typename traits_type::int_type int_type; 190227825Stheraven typedef typename traits_type::pos_type pos_type; 191227825Stheraven typedef typename traits_type::off_type off_type; 192227825Stheraven typedef typename traits_type::state_type state_type; 193227825Stheraven 194227825Stheraven // 27.9.1.2 Constructors/destructor: 195227825Stheraven basic_filebuf(); 196227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 197227825Stheraven basic_filebuf(basic_filebuf&& __rhs); 198227825Stheraven#endif 199227825Stheraven virtual ~basic_filebuf(); 200227825Stheraven 201227825Stheraven // 27.9.1.3 Assign/swap: 202227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 203227825Stheraven basic_filebuf& operator=(basic_filebuf&& __rhs); 204227825Stheraven#endif 205227825Stheraven void swap(basic_filebuf& __rhs); 206227825Stheraven 207227825Stheraven // 27.9.1.4 Members: 208227825Stheraven bool is_open() const; 209227825Stheraven basic_filebuf* open(const char* __s, ios_base::openmode __mode); 210227825Stheraven basic_filebuf* open(const string& __s, ios_base::openmode __mode); 211227825Stheraven basic_filebuf* close(); 212227825Stheraven 213227825Stheravenprotected: 214227825Stheraven // 27.9.1.5 Overridden virtual functions: 215227825Stheraven virtual int_type underflow(); 216227825Stheraven virtual int_type pbackfail(int_type __c = traits_type::eof()); 217227825Stheraven virtual int_type overflow (int_type __c = traits_type::eof()); 218227825Stheraven virtual basic_streambuf<char_type, traits_type>* setbuf(char_type* __s, streamsize __n); 219227825Stheraven virtual pos_type seekoff(off_type __off, ios_base::seekdir __way, 220227825Stheraven ios_base::openmode __wch = ios_base::in | ios_base::out); 221227825Stheraven virtual pos_type seekpos(pos_type __sp, 222227825Stheraven ios_base::openmode __wch = ios_base::in | ios_base::out); 223227825Stheraven virtual int sync(); 224227825Stheraven virtual void imbue(const locale& __loc); 225227825Stheraven 226227825Stheravenprivate: 227227825Stheraven char* __extbuf_; 228227825Stheraven const char* __extbufnext_; 229227825Stheraven const char* __extbufend_; 230227825Stheraven char __extbuf_min_[8]; 231227825Stheraven size_t __ebs_; 232227825Stheraven char_type* __intbuf_; 233227825Stheraven size_t __ibs_; 234227825Stheraven FILE* __file_; 235227825Stheraven const codecvt<char_type, char, state_type>* __cv_; 236227825Stheraven state_type __st_; 237241900Sdim state_type __st_last_; 238227825Stheraven ios_base::openmode __om_; 239227825Stheraven ios_base::openmode __cm_; 240227825Stheraven bool __owns_eb_; 241227825Stheraven bool __owns_ib_; 242227825Stheraven bool __always_noconv_; 243227825Stheraven 244227825Stheraven bool __read_mode(); 245227825Stheraven void __write_mode(); 246227825Stheraven}; 247227825Stheraven 248227825Stheraventemplate <class _CharT, class _Traits> 249227825Stheravenbasic_filebuf<_CharT, _Traits>::basic_filebuf() 250227825Stheraven : __extbuf_(0), 251227825Stheraven __extbufnext_(0), 252227825Stheraven __extbufend_(0), 253227825Stheraven __ebs_(0), 254227825Stheraven __intbuf_(0), 255227825Stheraven __ibs_(0), 256227825Stheraven __file_(0), 257241900Sdim __cv_(nullptr), 258227825Stheraven __st_(), 259241900Sdim __st_last_(), 260227825Stheraven __om_(0), 261227825Stheraven __cm_(0), 262227825Stheraven __owns_eb_(false), 263227825Stheraven __owns_ib_(false), 264241900Sdim __always_noconv_(false) 265227825Stheraven{ 266241900Sdim if (has_facet<codecvt<char_type, char, state_type> >(this->getloc())) 267241900Sdim { 268241900Sdim __cv_ = &use_facet<codecvt<char_type, char, state_type> >(this->getloc()); 269241900Sdim __always_noconv_ = __cv_->always_noconv(); 270241900Sdim } 271227825Stheraven setbuf(0, 4096); 272227825Stheraven} 273227825Stheraven 274227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 275227825Stheraven 276227825Stheraventemplate <class _CharT, class _Traits> 277227825Stheravenbasic_filebuf<_CharT, _Traits>::basic_filebuf(basic_filebuf&& __rhs) 278227825Stheraven : basic_streambuf<_CharT, _Traits>(__rhs) 279227825Stheraven{ 280227825Stheraven if (__rhs.__extbuf_ == __rhs.__extbuf_min_) 281227825Stheraven { 282227825Stheraven __extbuf_ = __extbuf_min_; 283227825Stheraven __extbufnext_ = __extbuf_ + (__rhs.__extbufnext_ - __rhs.__extbuf_); 284227825Stheraven __extbufend_ = __extbuf_ + (__rhs.__extbufend_ - __rhs.__extbuf_); 285227825Stheraven } 286227825Stheraven else 287227825Stheraven { 288227825Stheraven __extbuf_ = __rhs.__extbuf_; 289227825Stheraven __extbufnext_ = __rhs.__extbufnext_; 290227825Stheraven __extbufend_ = __rhs.__extbufend_; 291227825Stheraven } 292227825Stheraven __ebs_ = __rhs.__ebs_; 293227825Stheraven __intbuf_ = __rhs.__intbuf_; 294227825Stheraven __ibs_ = __rhs.__ibs_; 295227825Stheraven __file_ = __rhs.__file_; 296227825Stheraven __cv_ = __rhs.__cv_; 297227825Stheraven __st_ = __rhs.__st_; 298241900Sdim __st_last_ = __rhs.__st_last_; 299227825Stheraven __om_ = __rhs.__om_; 300227825Stheraven __cm_ = __rhs.__cm_; 301227825Stheraven __owns_eb_ = __rhs.__owns_eb_; 302227825Stheraven __owns_ib_ = __rhs.__owns_ib_; 303227825Stheraven __always_noconv_ = __rhs.__always_noconv_; 304227825Stheraven if (__rhs.pbase()) 305227825Stheraven { 306227825Stheraven if (__rhs.pbase() == __rhs.__intbuf_) 307227825Stheraven this->setp(__intbuf_, __intbuf_ + (__rhs. epptr() - __rhs.pbase())); 308227825Stheraven else 309227825Stheraven this->setp((char_type*)__extbuf_, 310227825Stheraven (char_type*)__extbuf_ + (__rhs. epptr() - __rhs.pbase())); 311227825Stheraven this->pbump(__rhs. pptr() - __rhs.pbase()); 312227825Stheraven } 313227825Stheraven else if (__rhs.eback()) 314227825Stheraven { 315227825Stheraven if (__rhs.eback() == __rhs.__intbuf_) 316227825Stheraven this->setg(__intbuf_, __intbuf_ + (__rhs.gptr() - __rhs.eback()), 317227825Stheraven __intbuf_ + (__rhs.egptr() - __rhs.eback())); 318227825Stheraven else 319227825Stheraven this->setg((char_type*)__extbuf_, 320227825Stheraven (char_type*)__extbuf_ + (__rhs.gptr() - __rhs.eback()), 321227825Stheraven (char_type*)__extbuf_ + (__rhs.egptr() - __rhs.eback())); 322227825Stheraven } 323227825Stheraven __rhs.__extbuf_ = 0; 324227825Stheraven __rhs.__extbufnext_ = 0; 325227825Stheraven __rhs.__extbufend_ = 0; 326227825Stheraven __rhs.__ebs_ = 0; 327227825Stheraven __rhs.__intbuf_ = 0; 328227825Stheraven __rhs.__ibs_ = 0; 329227825Stheraven __rhs.__file_ = 0; 330227825Stheraven __rhs.__st_ = state_type(); 331241900Sdim __rhs.__st_last_ = state_type(); 332227825Stheraven __rhs.__om_ = 0; 333227825Stheraven __rhs.__cm_ = 0; 334227825Stheraven __rhs.__owns_eb_ = false; 335227825Stheraven __rhs.__owns_ib_ = false; 336227825Stheraven __rhs.setg(0, 0, 0); 337227825Stheraven __rhs.setp(0, 0); 338227825Stheraven} 339227825Stheraven 340227825Stheraventemplate <class _CharT, class _Traits> 341227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 342227825Stheravenbasic_filebuf<_CharT, _Traits>& 343227825Stheravenbasic_filebuf<_CharT, _Traits>::operator=(basic_filebuf&& __rhs) 344227825Stheraven{ 345227825Stheraven close(); 346227825Stheraven swap(__rhs); 347241900Sdim return *this; 348227825Stheraven} 349227825Stheraven 350227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 351227825Stheraven 352227825Stheraventemplate <class _CharT, class _Traits> 353227825Stheravenbasic_filebuf<_CharT, _Traits>::~basic_filebuf() 354227825Stheraven{ 355227825Stheraven#ifndef _LIBCPP_NO_EXCEPTIONS 356227825Stheraven try 357227825Stheraven { 358227825Stheraven#endif // _LIBCPP_NO_EXCEPTIONS 359227825Stheraven close(); 360227825Stheraven#ifndef _LIBCPP_NO_EXCEPTIONS 361227825Stheraven } 362227825Stheraven catch (...) 363227825Stheraven { 364227825Stheraven } 365227825Stheraven#endif // _LIBCPP_NO_EXCEPTIONS 366227825Stheraven if (__owns_eb_) 367227825Stheraven delete [] __extbuf_; 368227825Stheraven if (__owns_ib_) 369227825Stheraven delete [] __intbuf_; 370227825Stheraven} 371227825Stheraven 372227825Stheraventemplate <class _CharT, class _Traits> 373227825Stheravenvoid 374227825Stheravenbasic_filebuf<_CharT, _Traits>::swap(basic_filebuf& __rhs) 375227825Stheraven{ 376227825Stheraven basic_streambuf<char_type, traits_type>::swap(__rhs); 377227825Stheraven if (__extbuf_ != __extbuf_min_ && __rhs.__extbuf_ != __rhs.__extbuf_min_) 378227825Stheraven { 379227825Stheraven _VSTD::swap(__extbuf_, __rhs.__extbuf_); 380227825Stheraven _VSTD::swap(__extbufnext_, __rhs.__extbufnext_); 381227825Stheraven _VSTD::swap(__extbufend_, __rhs.__extbufend_); 382227825Stheraven } 383227825Stheraven else 384227825Stheraven { 385227825Stheraven ptrdiff_t __ln = __extbufnext_ - __extbuf_; 386227825Stheraven ptrdiff_t __le = __extbufend_ - __extbuf_; 387227825Stheraven ptrdiff_t __rn = __rhs.__extbufnext_ - __rhs.__extbuf_; 388227825Stheraven ptrdiff_t __re = __rhs.__extbufend_ - __rhs.__extbuf_; 389227825Stheraven if (__extbuf_ == __extbuf_min_ && __rhs.__extbuf_ != __rhs.__extbuf_min_) 390227825Stheraven { 391227825Stheraven __extbuf_ = __rhs.__extbuf_; 392227825Stheraven __rhs.__extbuf_ = __rhs.__extbuf_min_; 393227825Stheraven } 394227825Stheraven else if (__extbuf_ != __extbuf_min_ && __rhs.__extbuf_ == __rhs.__extbuf_min_) 395227825Stheraven { 396227825Stheraven __rhs.__extbuf_ = __extbuf_; 397227825Stheraven __extbuf_ = __extbuf_min_; 398227825Stheraven } 399227825Stheraven __extbufnext_ = __extbuf_ + __rn; 400227825Stheraven __extbufend_ = __extbuf_ + __re; 401227825Stheraven __rhs.__extbufnext_ = __rhs.__extbuf_ + __ln; 402227825Stheraven __rhs.__extbufend_ = __rhs.__extbuf_ + __le; 403227825Stheraven } 404227825Stheraven _VSTD::swap(__ebs_, __rhs.__ebs_); 405227825Stheraven _VSTD::swap(__intbuf_, __rhs.__intbuf_); 406227825Stheraven _VSTD::swap(__ibs_, __rhs.__ibs_); 407227825Stheraven _VSTD::swap(__file_, __rhs.__file_); 408227825Stheraven _VSTD::swap(__cv_, __rhs.__cv_); 409227825Stheraven _VSTD::swap(__st_, __rhs.__st_); 410241900Sdim _VSTD::swap(__st_last_, __rhs.__st_last_); 411227825Stheraven _VSTD::swap(__om_, __rhs.__om_); 412227825Stheraven _VSTD::swap(__cm_, __rhs.__cm_); 413227825Stheraven _VSTD::swap(__owns_eb_, __rhs.__owns_eb_); 414227825Stheraven _VSTD::swap(__owns_ib_, __rhs.__owns_ib_); 415227825Stheraven _VSTD::swap(__always_noconv_, __rhs.__always_noconv_); 416227825Stheraven if (this->eback() == (char_type*)__rhs.__extbuf_min_) 417227825Stheraven { 418227825Stheraven ptrdiff_t __n = this->gptr() - this->eback(); 419227825Stheraven ptrdiff_t __e = this->egptr() - this->eback(); 420227825Stheraven this->setg((char_type*)__extbuf_min_, 421227825Stheraven (char_type*)__extbuf_min_ + __n, 422227825Stheraven (char_type*)__extbuf_min_ + __e); 423227825Stheraven } 424227825Stheraven else if (this->pbase() == (char_type*)__rhs.__extbuf_min_) 425227825Stheraven { 426227825Stheraven ptrdiff_t __n = this->pptr() - this->pbase(); 427227825Stheraven ptrdiff_t __e = this->epptr() - this->pbase(); 428227825Stheraven this->setp((char_type*)__extbuf_min_, 429227825Stheraven (char_type*)__extbuf_min_ + __e); 430227825Stheraven this->pbump(__n); 431227825Stheraven } 432227825Stheraven if (__rhs.eback() == (char_type*)__extbuf_min_) 433227825Stheraven { 434227825Stheraven ptrdiff_t __n = __rhs.gptr() - __rhs.eback(); 435227825Stheraven ptrdiff_t __e = __rhs.egptr() - __rhs.eback(); 436227825Stheraven __rhs.setg((char_type*)__rhs.__extbuf_min_, 437227825Stheraven (char_type*)__rhs.__extbuf_min_ + __n, 438227825Stheraven (char_type*)__rhs.__extbuf_min_ + __e); 439227825Stheraven } 440227825Stheraven else if (__rhs.pbase() == (char_type*)__extbuf_min_) 441227825Stheraven { 442227825Stheraven ptrdiff_t __n = __rhs.pptr() - __rhs.pbase(); 443227825Stheraven ptrdiff_t __e = __rhs.epptr() - __rhs.pbase(); 444227825Stheraven __rhs.setp((char_type*)__rhs.__extbuf_min_, 445227825Stheraven (char_type*)__rhs.__extbuf_min_ + __e); 446227825Stheraven __rhs.pbump(__n); 447227825Stheraven } 448227825Stheraven} 449227825Stheraven 450227825Stheraventemplate <class _CharT, class _Traits> 451227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 452227825Stheravenvoid 453227825Stheravenswap(basic_filebuf<_CharT, _Traits>& __x, basic_filebuf<_CharT, _Traits>& __y) 454227825Stheraven{ 455227825Stheraven __x.swap(__y); 456227825Stheraven} 457227825Stheraven 458227825Stheraventemplate <class _CharT, class _Traits> 459227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 460227825Stheravenbool 461227825Stheravenbasic_filebuf<_CharT, _Traits>::is_open() const 462227825Stheraven{ 463227825Stheraven return __file_ != 0; 464227825Stheraven} 465227825Stheraven 466227825Stheraventemplate <class _CharT, class _Traits> 467227825Stheravenbasic_filebuf<_CharT, _Traits>* 468227825Stheravenbasic_filebuf<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) 469227825Stheraven{ 470227825Stheraven basic_filebuf<_CharT, _Traits>* __rt = 0; 471227825Stheraven if (__file_ == 0) 472227825Stheraven { 473227825Stheraven __rt = this; 474227825Stheraven const char* __mdstr; 475227825Stheraven switch (__mode & ~ios_base::ate) 476227825Stheraven { 477227825Stheraven case ios_base::out: 478227825Stheraven case ios_base::out | ios_base::trunc: 479227825Stheraven __mdstr = "w"; 480227825Stheraven break; 481227825Stheraven case ios_base::out | ios_base::app: 482227825Stheraven case ios_base::app: 483227825Stheraven __mdstr = "a"; 484227825Stheraven break; 485227825Stheraven case ios_base::in: 486227825Stheraven __mdstr = "r"; 487227825Stheraven break; 488227825Stheraven case ios_base::in | ios_base::out: 489227825Stheraven __mdstr = "r+"; 490227825Stheraven break; 491227825Stheraven case ios_base::in | ios_base::out | ios_base::trunc: 492227825Stheraven __mdstr = "w+"; 493227825Stheraven break; 494227825Stheraven case ios_base::in | ios_base::out | ios_base::app: 495227825Stheraven case ios_base::in | ios_base::app: 496227825Stheraven __mdstr = "a+"; 497227825Stheraven break; 498227825Stheraven case ios_base::out | ios_base::binary: 499227825Stheraven case ios_base::out | ios_base::trunc | ios_base::binary: 500227825Stheraven __mdstr = "wb"; 501227825Stheraven break; 502227825Stheraven case ios_base::out | ios_base::app | ios_base::binary: 503227825Stheraven case ios_base::app | ios_base::binary: 504227825Stheraven __mdstr = "ab"; 505227825Stheraven break; 506227825Stheraven case ios_base::in | ios_base::binary: 507227825Stheraven __mdstr = "rb"; 508227825Stheraven break; 509227825Stheraven case ios_base::in | ios_base::out | ios_base::binary: 510227825Stheraven __mdstr = "r+b"; 511227825Stheraven break; 512227825Stheraven case ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary: 513227825Stheraven __mdstr = "w+b"; 514227825Stheraven break; 515227825Stheraven case ios_base::in | ios_base::out | ios_base::app | ios_base::binary: 516227825Stheraven case ios_base::in | ios_base::app | ios_base::binary: 517227825Stheraven __mdstr = "a+b"; 518227825Stheraven break; 519227825Stheraven default: 520227825Stheraven __rt = 0; 521227825Stheraven break; 522227825Stheraven } 523227825Stheraven if (__rt) 524227825Stheraven { 525227825Stheraven __file_ = fopen(__s, __mdstr); 526227825Stheraven if (__file_) 527227825Stheraven { 528227825Stheraven __om_ = __mode; 529227825Stheraven if (__mode & ios_base::ate) 530227825Stheraven { 531227825Stheraven if (fseek(__file_, 0, SEEK_END)) 532227825Stheraven { 533227825Stheraven fclose(__file_); 534227825Stheraven __file_ = 0; 535227825Stheraven __rt = 0; 536227825Stheraven } 537227825Stheraven } 538227825Stheraven } 539227825Stheraven else 540227825Stheraven __rt = 0; 541227825Stheraven } 542227825Stheraven } 543227825Stheraven return __rt; 544227825Stheraven} 545227825Stheraven 546227825Stheraventemplate <class _CharT, class _Traits> 547227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 548227825Stheravenbasic_filebuf<_CharT, _Traits>* 549227825Stheravenbasic_filebuf<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) 550227825Stheraven{ 551227825Stheraven return open(__s.c_str(), __mode); 552227825Stheraven} 553227825Stheraven 554227825Stheraventemplate <class _CharT, class _Traits> 555227825Stheravenbasic_filebuf<_CharT, _Traits>* 556227825Stheravenbasic_filebuf<_CharT, _Traits>::close() 557227825Stheraven{ 558227825Stheraven basic_filebuf<_CharT, _Traits>* __rt = 0; 559227825Stheraven if (__file_) 560227825Stheraven { 561227825Stheraven __rt = this; 562227825Stheraven unique_ptr<FILE, int(*)(FILE*)> __h(__file_, fclose); 563232924Stheraven if (sync()) 564227825Stheraven __rt = 0; 565227825Stheraven if (fclose(__h.release()) == 0) 566227825Stheraven __file_ = 0; 567227825Stheraven else 568227825Stheraven __rt = 0; 569227825Stheraven } 570227825Stheraven return __rt; 571227825Stheraven} 572227825Stheraven 573227825Stheraventemplate <class _CharT, class _Traits> 574227825Stheraventypename basic_filebuf<_CharT, _Traits>::int_type 575227825Stheravenbasic_filebuf<_CharT, _Traits>::underflow() 576227825Stheraven{ 577227825Stheraven if (__file_ == 0) 578227825Stheraven return traits_type::eof(); 579227825Stheraven bool __initial = __read_mode(); 580227825Stheraven char_type __1buf; 581227825Stheraven if (this->gptr() == 0) 582227825Stheraven this->setg(&__1buf, &__1buf+1, &__1buf+1); 583227825Stheraven const size_t __unget_sz = __initial ? 0 : min<size_t>((this->egptr() - this->eback()) / 2, 4); 584227825Stheraven int_type __c = traits_type::eof(); 585227825Stheraven if (this->gptr() == this->egptr()) 586227825Stheraven { 587227825Stheraven memmove(this->eback(), this->egptr() - __unget_sz, __unget_sz * sizeof(char_type)); 588227825Stheraven if (__always_noconv_) 589227825Stheraven { 590227825Stheraven size_t __nmemb = static_cast<size_t>(this->egptr() - this->eback() - __unget_sz); 591227825Stheraven __nmemb = fread(this->eback() + __unget_sz, 1, __nmemb, __file_); 592227825Stheraven if (__nmemb != 0) 593227825Stheraven { 594227825Stheraven this->setg(this->eback(), 595227825Stheraven this->eback() + __unget_sz, 596227825Stheraven this->eback() + __unget_sz + __nmemb); 597227825Stheraven __c = traits_type::to_int_type(*this->gptr()); 598227825Stheraven } 599227825Stheraven } 600227825Stheraven else 601227825Stheraven { 602227825Stheraven memmove(__extbuf_, __extbufnext_, __extbufend_ - __extbufnext_); 603227825Stheraven __extbufnext_ = __extbuf_ + (__extbufend_ - __extbufnext_); 604227825Stheraven __extbufend_ = __extbuf_ + (__extbuf_ == __extbuf_min_ ? sizeof(__extbuf_min_) : __ebs_); 605241900Sdim size_t __nmemb = _VSTD::min(static_cast<size_t>(__ibs_ - __unget_sz), 606227825Stheraven static_cast<size_t>(__extbufend_ - __extbufnext_)); 607227825Stheraven codecvt_base::result __r; 608241900Sdim __st_last_ = __st_; 609227825Stheraven size_t __nr = fread((void*)__extbufnext_, 1, __nmemb, __file_); 610227825Stheraven if (__nr != 0) 611227825Stheraven { 612241900Sdim#ifndef _LIBCPP_NO_EXCEPTIONS 613241900Sdim if (!__cv_) 614241900Sdim throw bad_cast(); 615241900Sdim#endif 616227825Stheraven __extbufend_ = __extbufnext_ + __nr; 617227825Stheraven char_type* __inext; 618227825Stheraven __r = __cv_->in(__st_, __extbuf_, __extbufend_, __extbufnext_, 619227825Stheraven this->eback() + __unget_sz, 620241900Sdim this->eback() + __ibs_, __inext); 621227825Stheraven if (__r == codecvt_base::noconv) 622227825Stheraven { 623227825Stheraven this->setg((char_type*)__extbuf_, (char_type*)__extbuf_, (char_type*)__extbufend_); 624227825Stheraven __c = traits_type::to_int_type(*this->gptr()); 625227825Stheraven } 626227825Stheraven else if (__inext != this->eback() + __unget_sz) 627227825Stheraven { 628227825Stheraven this->setg(this->eback(), this->eback() + __unget_sz, __inext); 629227825Stheraven __c = traits_type::to_int_type(*this->gptr()); 630227825Stheraven } 631227825Stheraven } 632227825Stheraven } 633227825Stheraven } 634227825Stheraven else 635227825Stheraven __c = traits_type::to_int_type(*this->gptr()); 636227825Stheraven if (this->eback() == &__1buf) 637227825Stheraven this->setg(0, 0, 0); 638227825Stheraven return __c; 639227825Stheraven} 640227825Stheraven 641227825Stheraventemplate <class _CharT, class _Traits> 642227825Stheraventypename basic_filebuf<_CharT, _Traits>::int_type 643227825Stheravenbasic_filebuf<_CharT, _Traits>::pbackfail(int_type __c) 644227825Stheraven{ 645227825Stheraven if (__file_ && this->eback() < this->gptr()) 646227825Stheraven { 647227825Stheraven if (traits_type::eq_int_type(__c, traits_type::eof())) 648227825Stheraven { 649227825Stheraven this->gbump(-1); 650227825Stheraven return traits_type::not_eof(__c); 651227825Stheraven } 652227825Stheraven if ((__om_ & ios_base::out) || 653227825Stheraven traits_type::eq(traits_type::to_char_type(__c), this->gptr()[-1])) 654227825Stheraven { 655227825Stheraven this->gbump(-1); 656227825Stheraven *this->gptr() = traits_type::to_char_type(__c); 657227825Stheraven return __c; 658227825Stheraven } 659227825Stheraven } 660227825Stheraven return traits_type::eof(); 661227825Stheraven} 662227825Stheraven 663227825Stheraventemplate <class _CharT, class _Traits> 664227825Stheraventypename basic_filebuf<_CharT, _Traits>::int_type 665227825Stheravenbasic_filebuf<_CharT, _Traits>::overflow(int_type __c) 666227825Stheraven{ 667227825Stheraven if (__file_ == 0) 668227825Stheraven return traits_type::eof(); 669227825Stheraven __write_mode(); 670227825Stheraven char_type __1buf; 671227825Stheraven char_type* __pb_save = this->pbase(); 672227825Stheraven char_type* __epb_save = this->epptr(); 673227825Stheraven if (!traits_type::eq_int_type(__c, traits_type::eof())) 674227825Stheraven { 675227825Stheraven if (this->pptr() == 0) 676227825Stheraven this->setp(&__1buf, &__1buf+1); 677227825Stheraven *this->pptr() = traits_type::to_char_type(__c); 678227825Stheraven this->pbump(1); 679227825Stheraven } 680227825Stheraven if (this->pptr() != this->pbase()) 681227825Stheraven { 682227825Stheraven if (__always_noconv_) 683227825Stheraven { 684227825Stheraven size_t __nmemb = static_cast<size_t>(this->pptr() - this->pbase()); 685227825Stheraven if (fwrite(this->pbase(), sizeof(char_type), __nmemb, __file_) != __nmemb) 686227825Stheraven return traits_type::eof(); 687227825Stheraven } 688227825Stheraven else 689227825Stheraven { 690227825Stheraven char* __extbe = __extbuf_; 691227825Stheraven codecvt_base::result __r; 692227825Stheraven do 693227825Stheraven { 694241900Sdim#ifndef _LIBCPP_NO_EXCEPTIONS 695241900Sdim if (!__cv_) 696241900Sdim throw bad_cast(); 697241900Sdim#endif 698227825Stheraven const char_type* __e; 699227825Stheraven __r = __cv_->out(__st_, this->pbase(), this->pptr(), __e, 700227825Stheraven __extbuf_, __extbuf_ + __ebs_, __extbe); 701227825Stheraven if (__e == this->pbase()) 702227825Stheraven return traits_type::eof(); 703227825Stheraven if (__r == codecvt_base::noconv) 704227825Stheraven { 705227825Stheraven size_t __nmemb = static_cast<size_t>(this->pptr() - this->pbase()); 706227825Stheraven if (fwrite(this->pbase(), 1, __nmemb, __file_) != __nmemb) 707227825Stheraven return traits_type::eof(); 708227825Stheraven } 709227825Stheraven else if (__r == codecvt_base::ok || __r == codecvt_base::partial) 710227825Stheraven { 711227825Stheraven size_t __nmemb = static_cast<size_t>(__extbe - __extbuf_); 712227825Stheraven if (fwrite(__extbuf_, 1, __nmemb, __file_) != __nmemb) 713227825Stheraven return traits_type::eof(); 714227825Stheraven if (__r == codecvt_base::partial) 715227825Stheraven { 716227825Stheraven this->setp((char_type*)__e, this->pptr()); 717227825Stheraven this->pbump(this->epptr() - this->pbase()); 718227825Stheraven } 719227825Stheraven } 720227825Stheraven else 721227825Stheraven return traits_type::eof(); 722227825Stheraven } while (__r == codecvt_base::partial); 723227825Stheraven } 724227825Stheraven this->setp(__pb_save, __epb_save); 725227825Stheraven } 726227825Stheraven return traits_type::not_eof(__c); 727227825Stheraven} 728227825Stheraven 729227825Stheraventemplate <class _CharT, class _Traits> 730227825Stheravenbasic_streambuf<_CharT, _Traits>* 731227825Stheravenbasic_filebuf<_CharT, _Traits>::setbuf(char_type* __s, streamsize __n) 732227825Stheraven{ 733227825Stheraven this->setg(0, 0, 0); 734227825Stheraven this->setp(0, 0); 735227825Stheraven if (__owns_eb_) 736227825Stheraven delete [] __extbuf_; 737227825Stheraven if (__owns_ib_) 738227825Stheraven delete [] __intbuf_; 739227825Stheraven __ebs_ = __n; 740227825Stheraven if (__ebs_ > sizeof(__extbuf_min_)) 741227825Stheraven { 742227825Stheraven if (__always_noconv_ && __s) 743227825Stheraven { 744227825Stheraven __extbuf_ = (char*)__s; 745227825Stheraven __owns_eb_ = false; 746227825Stheraven } 747227825Stheraven else 748227825Stheraven { 749227825Stheraven __extbuf_ = new char[__ebs_]; 750227825Stheraven __owns_eb_ = true; 751227825Stheraven } 752227825Stheraven } 753227825Stheraven else 754227825Stheraven { 755227825Stheraven __extbuf_ = __extbuf_min_; 756227825Stheraven __ebs_ = sizeof(__extbuf_min_); 757227825Stheraven __owns_eb_ = false; 758227825Stheraven } 759227825Stheraven if (!__always_noconv_) 760227825Stheraven { 761227825Stheraven __ibs_ = max<streamsize>(__n, sizeof(__extbuf_min_)); 762227825Stheraven if (__s && __ibs_ >= sizeof(__extbuf_min_)) 763227825Stheraven { 764227825Stheraven __intbuf_ = __s; 765227825Stheraven __owns_ib_ = false; 766227825Stheraven } 767227825Stheraven else 768227825Stheraven { 769227825Stheraven __intbuf_ = new char_type[__ibs_]; 770227825Stheraven __owns_ib_ = true; 771227825Stheraven } 772227825Stheraven } 773227825Stheraven else 774227825Stheraven { 775227825Stheraven __ibs_ = 0; 776227825Stheraven __intbuf_ = 0; 777227825Stheraven __owns_ib_ = false; 778227825Stheraven } 779227825Stheraven return this; 780227825Stheraven} 781227825Stheraven 782227825Stheraventemplate <class _CharT, class _Traits> 783227825Stheraventypename basic_filebuf<_CharT, _Traits>::pos_type 784227825Stheravenbasic_filebuf<_CharT, _Traits>::seekoff(off_type __off, ios_base::seekdir __way, 785227825Stheraven ios_base::openmode) 786227825Stheraven{ 787241900Sdim#ifndef _LIBCPP_NO_EXCEPTIONS 788241900Sdim if (!__cv_) 789241900Sdim throw bad_cast(); 790241900Sdim#endif 791227825Stheraven int __width = __cv_->encoding(); 792227825Stheraven if (__file_ == 0 || (__width <= 0 && __off != 0) || sync()) 793227825Stheraven return pos_type(off_type(-1)); 794227825Stheraven // __width > 0 || __off == 0 795227825Stheraven int __whence; 796227825Stheraven switch (__way) 797227825Stheraven { 798227825Stheraven case ios_base::beg: 799227825Stheraven __whence = SEEK_SET; 800227825Stheraven break; 801227825Stheraven case ios_base::cur: 802227825Stheraven __whence = SEEK_CUR; 803227825Stheraven break; 804227825Stheraven case ios_base::end: 805227825Stheraven __whence = SEEK_END; 806227825Stheraven break; 807227825Stheraven default: 808227825Stheraven return pos_type(off_type(-1)); 809227825Stheraven } 810249989Sdim#if _WIN32 811249989Sdim if (fseek(__file_, __width > 0 ? __width * __off : 0, __whence)) 812249989Sdim return pos_type(off_type(-1)); 813249989Sdim pos_type __r = ftell(__file_); 814249989Sdim#else 815227825Stheraven if (fseeko(__file_, __width > 0 ? __width * __off : 0, __whence)) 816227825Stheraven return pos_type(off_type(-1)); 817227825Stheraven pos_type __r = ftello(__file_); 818249989Sdim#endif 819227825Stheraven __r.state(__st_); 820227825Stheraven return __r; 821227825Stheraven} 822227825Stheraven 823227825Stheraventemplate <class _CharT, class _Traits> 824227825Stheraventypename basic_filebuf<_CharT, _Traits>::pos_type 825227825Stheravenbasic_filebuf<_CharT, _Traits>::seekpos(pos_type __sp, ios_base::openmode) 826227825Stheraven{ 827227825Stheraven if (__file_ == 0 || sync()) 828227825Stheraven return pos_type(off_type(-1)); 829249989Sdim#if _WIN32 830249989Sdim if (fseek(__file_, __sp, SEEK_SET)) 831249989Sdim return pos_type(off_type(-1)); 832249989Sdim#else 833227825Stheraven if (fseeko(__file_, __sp, SEEK_SET)) 834227825Stheraven return pos_type(off_type(-1)); 835249989Sdim#endif 836241900Sdim __st_ = __sp.state(); 837227825Stheraven return __sp; 838227825Stheraven} 839227825Stheraven 840227825Stheraventemplate <class _CharT, class _Traits> 841227825Stheravenint 842227825Stheravenbasic_filebuf<_CharT, _Traits>::sync() 843227825Stheraven{ 844227825Stheraven if (__file_ == 0) 845227825Stheraven return 0; 846241900Sdim#ifndef _LIBCPP_NO_EXCEPTIONS 847241900Sdim if (!__cv_) 848241900Sdim throw bad_cast(); 849241900Sdim#endif 850227825Stheraven if (__cm_ & ios_base::out) 851227825Stheraven { 852227825Stheraven if (this->pptr() != this->pbase()) 853227825Stheraven if (overflow() == traits_type::eof()) 854227825Stheraven return -1; 855227825Stheraven codecvt_base::result __r; 856227825Stheraven do 857227825Stheraven { 858227825Stheraven char* __extbe; 859227825Stheraven __r = __cv_->unshift(__st_, __extbuf_, __extbuf_ + __ebs_, __extbe); 860227825Stheraven size_t __nmemb = static_cast<size_t>(__extbe - __extbuf_); 861227825Stheraven if (fwrite(__extbuf_, 1, __nmemb, __file_) != __nmemb) 862227825Stheraven return -1; 863227825Stheraven } while (__r == codecvt_base::partial); 864227825Stheraven if (__r == codecvt_base::error) 865227825Stheraven return -1; 866227825Stheraven if (fflush(__file_)) 867227825Stheraven return -1; 868227825Stheraven } 869227825Stheraven else if (__cm_ & ios_base::in) 870227825Stheraven { 871227825Stheraven off_type __c; 872241900Sdim state_type __state = __st_last_; 873241900Sdim bool __update_st = false; 874227825Stheraven if (__always_noconv_) 875227825Stheraven __c = this->egptr() - this->gptr(); 876227825Stheraven else 877227825Stheraven { 878227825Stheraven int __width = __cv_->encoding(); 879227825Stheraven __c = __extbufend_ - __extbufnext_; 880227825Stheraven if (__width > 0) 881227825Stheraven __c += __width * (this->egptr() - this->gptr()); 882227825Stheraven else 883227825Stheraven { 884227825Stheraven if (this->gptr() != this->egptr()) 885227825Stheraven { 886241900Sdim const int __off = __cv_->length(__state, __extbuf_, 887241900Sdim __extbufnext_, 888241900Sdim this->gptr() - this->eback()); 889241900Sdim __c += __extbufnext_ - __extbuf_ - __off; 890241900Sdim __update_st = true; 891227825Stheraven } 892227825Stheraven } 893227825Stheraven } 894249989Sdim#if _WIN32 895249989Sdim if (fseek(__file_, -__c, SEEK_CUR)) 896249989Sdim return -1; 897249989Sdim#else 898227825Stheraven if (fseeko(__file_, -__c, SEEK_CUR)) 899227825Stheraven return -1; 900249989Sdim#endif 901241900Sdim if (__update_st) 902241900Sdim __st_ = __state; 903241900Sdim __extbufnext_ = __extbufend_ = __extbuf_; 904227825Stheraven this->setg(0, 0, 0); 905227825Stheraven __cm_ = 0; 906227825Stheraven } 907227825Stheraven return 0; 908227825Stheraven} 909227825Stheraven 910227825Stheraventemplate <class _CharT, class _Traits> 911227825Stheravenvoid 912227825Stheravenbasic_filebuf<_CharT, _Traits>::imbue(const locale& __loc) 913227825Stheraven{ 914227825Stheraven sync(); 915227825Stheraven __cv_ = &use_facet<codecvt<char_type, char, state_type> >(__loc); 916227825Stheraven bool __old_anc = __always_noconv_; 917227825Stheraven __always_noconv_ = __cv_->always_noconv(); 918227825Stheraven if (__old_anc != __always_noconv_) 919227825Stheraven { 920227825Stheraven this->setg(0, 0, 0); 921227825Stheraven this->setp(0, 0); 922227825Stheraven // invariant, char_type is char, else we couldn't get here 923227825Stheraven if (__always_noconv_) // need to dump __intbuf_ 924227825Stheraven { 925227825Stheraven if (__owns_eb_) 926227825Stheraven delete [] __extbuf_; 927227825Stheraven __owns_eb_ = __owns_ib_; 928227825Stheraven __ebs_ = __ibs_; 929227825Stheraven __extbuf_ = (char*)__intbuf_; 930227825Stheraven __ibs_ = 0; 931227825Stheraven __intbuf_ = 0; 932227825Stheraven __owns_ib_ = false; 933227825Stheraven } 934227825Stheraven else // need to obtain an __intbuf_. 935227825Stheraven { // If __extbuf_ is user-supplied, use it, else new __intbuf_ 936227825Stheraven if (!__owns_eb_ && __extbuf_ != __extbuf_min_) 937227825Stheraven { 938227825Stheraven __ibs_ = __ebs_; 939227825Stheraven __intbuf_ = (char_type*)__extbuf_; 940227825Stheraven __owns_ib_ = false; 941227825Stheraven __extbuf_ = new char[__ebs_]; 942227825Stheraven __owns_eb_ = true; 943227825Stheraven } 944227825Stheraven else 945227825Stheraven { 946227825Stheraven __ibs_ = __ebs_; 947227825Stheraven __intbuf_ = new char_type[__ibs_]; 948227825Stheraven __owns_ib_ = true; 949227825Stheraven } 950227825Stheraven } 951227825Stheraven } 952227825Stheraven} 953227825Stheraven 954227825Stheraventemplate <class _CharT, class _Traits> 955227825Stheravenbool 956227825Stheravenbasic_filebuf<_CharT, _Traits>::__read_mode() 957227825Stheraven{ 958227825Stheraven if (!(__cm_ & ios_base::in)) 959227825Stheraven { 960227825Stheraven this->setp(0, 0); 961227825Stheraven if (__always_noconv_) 962227825Stheraven this->setg((char_type*)__extbuf_, 963227825Stheraven (char_type*)__extbuf_ + __ebs_, 964227825Stheraven (char_type*)__extbuf_ + __ebs_); 965227825Stheraven else 966227825Stheraven this->setg(__intbuf_, __intbuf_ + __ibs_, __intbuf_ + __ibs_); 967227825Stheraven __cm_ = ios_base::in; 968227825Stheraven return true; 969227825Stheraven } 970227825Stheraven return false; 971227825Stheraven} 972227825Stheraven 973227825Stheraventemplate <class _CharT, class _Traits> 974227825Stheravenvoid 975227825Stheravenbasic_filebuf<_CharT, _Traits>::__write_mode() 976227825Stheraven{ 977227825Stheraven if (!(__cm_ & ios_base::out)) 978227825Stheraven { 979227825Stheraven this->setg(0, 0, 0); 980227825Stheraven if (__ebs_ > sizeof(__extbuf_min_)) 981227825Stheraven { 982227825Stheraven if (__always_noconv_) 983227825Stheraven this->setp((char_type*)__extbuf_, 984227825Stheraven (char_type*)__extbuf_ + (__ebs_ - 1)); 985227825Stheraven else 986227825Stheraven this->setp(__intbuf_, __intbuf_ + (__ibs_ - 1)); 987227825Stheraven } 988227825Stheraven else 989227825Stheraven this->setp(0, 0); 990227825Stheraven __cm_ = ios_base::out; 991227825Stheraven } 992227825Stheraven} 993227825Stheraven 994227825Stheraven// basic_ifstream 995227825Stheraven 996227825Stheraventemplate <class _CharT, class _Traits> 997249989Sdimclass _LIBCPP_TYPE_VIS basic_ifstream 998227825Stheraven : public basic_istream<_CharT, _Traits> 999227825Stheraven{ 1000227825Stheravenpublic: 1001227825Stheraven typedef _CharT char_type; 1002227825Stheraven typedef _Traits traits_type; 1003227825Stheraven typedef typename traits_type::int_type int_type; 1004227825Stheraven typedef typename traits_type::pos_type pos_type; 1005227825Stheraven typedef typename traits_type::off_type off_type; 1006227825Stheraven 1007227825Stheraven basic_ifstream(); 1008227825Stheraven explicit basic_ifstream(const char* __s, ios_base::openmode __mode = ios_base::in); 1009227825Stheraven explicit basic_ifstream(const string& __s, ios_base::openmode __mode = ios_base::in); 1010227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1011227825Stheraven basic_ifstream(basic_ifstream&& __rhs); 1012227825Stheraven#endif 1013227825Stheraven 1014227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1015227825Stheraven basic_ifstream& operator=(basic_ifstream&& __rhs); 1016227825Stheraven#endif 1017227825Stheraven void swap(basic_ifstream& __rhs); 1018227825Stheraven 1019227825Stheraven basic_filebuf<char_type, traits_type>* rdbuf() const; 1020227825Stheraven bool is_open() const; 1021227825Stheraven void open(const char* __s, ios_base::openmode __mode = ios_base::in); 1022227825Stheraven void open(const string& __s, ios_base::openmode __mode = ios_base::in); 1023227825Stheraven void close(); 1024227825Stheraven 1025227825Stheravenprivate: 1026227825Stheraven basic_filebuf<char_type, traits_type> __sb_; 1027227825Stheraven}; 1028227825Stheraven 1029227825Stheraventemplate <class _CharT, class _Traits> 1030227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1031227825Stheravenbasic_ifstream<_CharT, _Traits>::basic_ifstream() 1032227825Stheraven : basic_istream<char_type, traits_type>(&__sb_) 1033227825Stheraven{ 1034227825Stheraven} 1035227825Stheraven 1036227825Stheraventemplate <class _CharT, class _Traits> 1037227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1038227825Stheravenbasic_ifstream<_CharT, _Traits>::basic_ifstream(const char* __s, ios_base::openmode __mode) 1039227825Stheraven : basic_istream<char_type, traits_type>(&__sb_) 1040227825Stheraven{ 1041227825Stheraven if (__sb_.open(__s, __mode | ios_base::in) == 0) 1042227825Stheraven this->setstate(ios_base::failbit); 1043227825Stheraven} 1044227825Stheraven 1045227825Stheraventemplate <class _CharT, class _Traits> 1046227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1047227825Stheravenbasic_ifstream<_CharT, _Traits>::basic_ifstream(const string& __s, ios_base::openmode __mode) 1048227825Stheraven : basic_istream<char_type, traits_type>(&__sb_) 1049227825Stheraven{ 1050227825Stheraven if (__sb_.open(__s, __mode | ios_base::in) == 0) 1051227825Stheraven this->setstate(ios_base::failbit); 1052227825Stheraven} 1053227825Stheraven 1054227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1055227825Stheraven 1056227825Stheraventemplate <class _CharT, class _Traits> 1057227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1058227825Stheravenbasic_ifstream<_CharT, _Traits>::basic_ifstream(basic_ifstream&& __rhs) 1059227825Stheraven : basic_istream<char_type, traits_type>(_VSTD::move(__rhs)), 1060227825Stheraven __sb_(_VSTD::move(__rhs.__sb_)) 1061227825Stheraven{ 1062227825Stheraven this->set_rdbuf(&__sb_); 1063227825Stheraven} 1064227825Stheraven 1065227825Stheraventemplate <class _CharT, class _Traits> 1066227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1067227825Stheravenbasic_ifstream<_CharT, _Traits>& 1068227825Stheravenbasic_ifstream<_CharT, _Traits>::operator=(basic_ifstream&& __rhs) 1069227825Stheraven{ 1070227825Stheraven basic_istream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); 1071227825Stheraven __sb_ = _VSTD::move(__rhs.__sb_); 1072227825Stheraven return *this; 1073227825Stheraven} 1074227825Stheraven 1075227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1076227825Stheraven 1077227825Stheraventemplate <class _CharT, class _Traits> 1078227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1079227825Stheravenvoid 1080227825Stheravenbasic_ifstream<_CharT, _Traits>::swap(basic_ifstream& __rhs) 1081227825Stheraven{ 1082227825Stheraven basic_istream<char_type, traits_type>::swap(__rhs); 1083227825Stheraven __sb_.swap(__rhs.__sb_); 1084227825Stheraven} 1085227825Stheraven 1086227825Stheraventemplate <class _CharT, class _Traits> 1087227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1088227825Stheravenvoid 1089227825Stheravenswap(basic_ifstream<_CharT, _Traits>& __x, basic_ifstream<_CharT, _Traits>& __y) 1090227825Stheraven{ 1091227825Stheraven __x.swap(__y); 1092227825Stheraven} 1093227825Stheraven 1094227825Stheraventemplate <class _CharT, class _Traits> 1095227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1096227825Stheravenbasic_filebuf<_CharT, _Traits>* 1097227825Stheravenbasic_ifstream<_CharT, _Traits>::rdbuf() const 1098227825Stheraven{ 1099227825Stheraven return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); 1100227825Stheraven} 1101227825Stheraven 1102227825Stheraventemplate <class _CharT, class _Traits> 1103227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1104227825Stheravenbool 1105227825Stheravenbasic_ifstream<_CharT, _Traits>::is_open() const 1106227825Stheraven{ 1107227825Stheraven return __sb_.is_open(); 1108227825Stheraven} 1109227825Stheraven 1110227825Stheraventemplate <class _CharT, class _Traits> 1111227825Stheravenvoid 1112227825Stheravenbasic_ifstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) 1113227825Stheraven{ 1114227825Stheraven if (__sb_.open(__s, __mode | ios_base::in)) 1115227825Stheraven this->clear(); 1116227825Stheraven else 1117227825Stheraven this->setstate(ios_base::failbit); 1118227825Stheraven} 1119227825Stheraven 1120227825Stheraventemplate <class _CharT, class _Traits> 1121227825Stheravenvoid 1122227825Stheravenbasic_ifstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) 1123227825Stheraven{ 1124227825Stheraven if (__sb_.open(__s, __mode | ios_base::in)) 1125227825Stheraven this->clear(); 1126227825Stheraven else 1127227825Stheraven this->setstate(ios_base::failbit); 1128227825Stheraven} 1129227825Stheraven 1130227825Stheraventemplate <class _CharT, class _Traits> 1131227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1132227825Stheravenvoid 1133227825Stheravenbasic_ifstream<_CharT, _Traits>::close() 1134227825Stheraven{ 1135227825Stheraven if (__sb_.close() == 0) 1136227825Stheraven this->setstate(ios_base::failbit); 1137227825Stheraven} 1138227825Stheraven 1139227825Stheraven// basic_ofstream 1140227825Stheraven 1141227825Stheraventemplate <class _CharT, class _Traits> 1142249989Sdimclass _LIBCPP_TYPE_VIS basic_ofstream 1143227825Stheraven : public basic_ostream<_CharT, _Traits> 1144227825Stheraven{ 1145227825Stheravenpublic: 1146227825Stheraven typedef _CharT char_type; 1147227825Stheraven typedef _Traits traits_type; 1148227825Stheraven typedef typename traits_type::int_type int_type; 1149227825Stheraven typedef typename traits_type::pos_type pos_type; 1150227825Stheraven typedef typename traits_type::off_type off_type; 1151227825Stheraven 1152227825Stheraven basic_ofstream(); 1153227825Stheraven explicit basic_ofstream(const char* __s, ios_base::openmode __mode = ios_base::out); 1154227825Stheraven explicit basic_ofstream(const string& __s, ios_base::openmode __mode = ios_base::out); 1155227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1156227825Stheraven basic_ofstream(basic_ofstream&& __rhs); 1157227825Stheraven#endif 1158227825Stheraven 1159227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1160227825Stheraven basic_ofstream& operator=(basic_ofstream&& __rhs); 1161227825Stheraven#endif 1162227825Stheraven void swap(basic_ofstream& __rhs); 1163227825Stheraven 1164227825Stheraven basic_filebuf<char_type, traits_type>* rdbuf() const; 1165227825Stheraven bool is_open() const; 1166227825Stheraven void open(const char* __s, ios_base::openmode __mode = ios_base::out); 1167227825Stheraven void open(const string& __s, ios_base::openmode __mode = ios_base::out); 1168227825Stheraven void close(); 1169227825Stheraven 1170227825Stheravenprivate: 1171227825Stheraven basic_filebuf<char_type, traits_type> __sb_; 1172227825Stheraven}; 1173227825Stheraven 1174227825Stheraventemplate <class _CharT, class _Traits> 1175227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1176227825Stheravenbasic_ofstream<_CharT, _Traits>::basic_ofstream() 1177227825Stheraven : basic_ostream<char_type, traits_type>(&__sb_) 1178227825Stheraven{ 1179227825Stheraven} 1180227825Stheraven 1181227825Stheraventemplate <class _CharT, class _Traits> 1182227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1183227825Stheravenbasic_ofstream<_CharT, _Traits>::basic_ofstream(const char* __s, ios_base::openmode __mode) 1184227825Stheraven : basic_ostream<char_type, traits_type>(&__sb_) 1185227825Stheraven{ 1186227825Stheraven if (__sb_.open(__s, __mode | ios_base::out) == 0) 1187227825Stheraven this->setstate(ios_base::failbit); 1188227825Stheraven} 1189227825Stheraven 1190227825Stheraventemplate <class _CharT, class _Traits> 1191227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1192227825Stheravenbasic_ofstream<_CharT, _Traits>::basic_ofstream(const string& __s, ios_base::openmode __mode) 1193227825Stheraven : basic_ostream<char_type, traits_type>(&__sb_) 1194227825Stheraven{ 1195227825Stheraven if (__sb_.open(__s, __mode | ios_base::out) == 0) 1196227825Stheraven this->setstate(ios_base::failbit); 1197227825Stheraven} 1198227825Stheraven 1199227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1200227825Stheraven 1201227825Stheraventemplate <class _CharT, class _Traits> 1202227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1203227825Stheravenbasic_ofstream<_CharT, _Traits>::basic_ofstream(basic_ofstream&& __rhs) 1204227825Stheraven : basic_ostream<char_type, traits_type>(_VSTD::move(__rhs)), 1205227825Stheraven __sb_(_VSTD::move(__rhs.__sb_)) 1206227825Stheraven{ 1207227825Stheraven this->set_rdbuf(&__sb_); 1208227825Stheraven} 1209227825Stheraven 1210227825Stheraventemplate <class _CharT, class _Traits> 1211227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1212227825Stheravenbasic_ofstream<_CharT, _Traits>& 1213227825Stheravenbasic_ofstream<_CharT, _Traits>::operator=(basic_ofstream&& __rhs) 1214227825Stheraven{ 1215227825Stheraven basic_ostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); 1216227825Stheraven __sb_ = _VSTD::move(__rhs.__sb_); 1217227825Stheraven return *this; 1218227825Stheraven} 1219227825Stheraven 1220227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1221227825Stheraven 1222227825Stheraventemplate <class _CharT, class _Traits> 1223227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1224227825Stheravenvoid 1225227825Stheravenbasic_ofstream<_CharT, _Traits>::swap(basic_ofstream& __rhs) 1226227825Stheraven{ 1227227825Stheraven basic_ostream<char_type, traits_type>::swap(__rhs); 1228227825Stheraven __sb_.swap(__rhs.__sb_); 1229227825Stheraven} 1230227825Stheraven 1231227825Stheraventemplate <class _CharT, class _Traits> 1232227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1233227825Stheravenvoid 1234227825Stheravenswap(basic_ofstream<_CharT, _Traits>& __x, basic_ofstream<_CharT, _Traits>& __y) 1235227825Stheraven{ 1236227825Stheraven __x.swap(__y); 1237227825Stheraven} 1238227825Stheraven 1239227825Stheraventemplate <class _CharT, class _Traits> 1240227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1241227825Stheravenbasic_filebuf<_CharT, _Traits>* 1242227825Stheravenbasic_ofstream<_CharT, _Traits>::rdbuf() const 1243227825Stheraven{ 1244227825Stheraven return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); 1245227825Stheraven} 1246227825Stheraven 1247227825Stheraventemplate <class _CharT, class _Traits> 1248227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1249227825Stheravenbool 1250227825Stheravenbasic_ofstream<_CharT, _Traits>::is_open() const 1251227825Stheraven{ 1252227825Stheraven return __sb_.is_open(); 1253227825Stheraven} 1254227825Stheraven 1255227825Stheraventemplate <class _CharT, class _Traits> 1256227825Stheravenvoid 1257227825Stheravenbasic_ofstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) 1258227825Stheraven{ 1259227825Stheraven if (__sb_.open(__s, __mode | ios_base::out)) 1260227825Stheraven this->clear(); 1261227825Stheraven else 1262227825Stheraven this->setstate(ios_base::failbit); 1263227825Stheraven} 1264227825Stheraven 1265227825Stheraventemplate <class _CharT, class _Traits> 1266227825Stheravenvoid 1267227825Stheravenbasic_ofstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) 1268227825Stheraven{ 1269227825Stheraven if (__sb_.open(__s, __mode | ios_base::out)) 1270227825Stheraven this->clear(); 1271227825Stheraven else 1272227825Stheraven this->setstate(ios_base::failbit); 1273227825Stheraven} 1274227825Stheraven 1275227825Stheraventemplate <class _CharT, class _Traits> 1276227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1277227825Stheravenvoid 1278227825Stheravenbasic_ofstream<_CharT, _Traits>::close() 1279227825Stheraven{ 1280227825Stheraven if (__sb_.close() == 0) 1281227825Stheraven this->setstate(ios_base::failbit); 1282227825Stheraven} 1283227825Stheraven 1284227825Stheraven// basic_fstream 1285227825Stheraven 1286227825Stheraventemplate <class _CharT, class _Traits> 1287249989Sdimclass _LIBCPP_TYPE_VIS basic_fstream 1288227825Stheraven : public basic_iostream<_CharT, _Traits> 1289227825Stheraven{ 1290227825Stheravenpublic: 1291227825Stheraven typedef _CharT char_type; 1292227825Stheraven typedef _Traits traits_type; 1293227825Stheraven typedef typename traits_type::int_type int_type; 1294227825Stheraven typedef typename traits_type::pos_type pos_type; 1295227825Stheraven typedef typename traits_type::off_type off_type; 1296227825Stheraven 1297227825Stheraven basic_fstream(); 1298227825Stheraven explicit basic_fstream(const char* __s, ios_base::openmode __mode = ios_base::in | ios_base::out); 1299227825Stheraven explicit basic_fstream(const string& __s, ios_base::openmode __mode = ios_base::in | ios_base::out); 1300227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1301227825Stheraven basic_fstream(basic_fstream&& __rhs); 1302227825Stheraven#endif 1303227825Stheraven 1304227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1305227825Stheraven basic_fstream& operator=(basic_fstream&& __rhs); 1306227825Stheraven#endif 1307227825Stheraven void swap(basic_fstream& __rhs); 1308227825Stheraven 1309227825Stheraven basic_filebuf<char_type, traits_type>* rdbuf() const; 1310227825Stheraven bool is_open() const; 1311227825Stheraven void open(const char* __s, ios_base::openmode __mode = ios_base::in | ios_base::out); 1312227825Stheraven void open(const string& __s, ios_base::openmode __mode = ios_base::in | ios_base::out); 1313227825Stheraven void close(); 1314227825Stheraven 1315227825Stheravenprivate: 1316227825Stheraven basic_filebuf<char_type, traits_type> __sb_; 1317227825Stheraven}; 1318227825Stheraven 1319227825Stheraventemplate <class _CharT, class _Traits> 1320227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1321227825Stheravenbasic_fstream<_CharT, _Traits>::basic_fstream() 1322227825Stheraven : basic_iostream<char_type, traits_type>(&__sb_) 1323227825Stheraven{ 1324227825Stheraven} 1325227825Stheraven 1326227825Stheraventemplate <class _CharT, class _Traits> 1327227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1328227825Stheravenbasic_fstream<_CharT, _Traits>::basic_fstream(const char* __s, ios_base::openmode __mode) 1329227825Stheraven : basic_iostream<char_type, traits_type>(&__sb_) 1330227825Stheraven{ 1331227825Stheraven if (__sb_.open(__s, __mode) == 0) 1332227825Stheraven this->setstate(ios_base::failbit); 1333227825Stheraven} 1334227825Stheraven 1335227825Stheraventemplate <class _CharT, class _Traits> 1336227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1337227825Stheravenbasic_fstream<_CharT, _Traits>::basic_fstream(const string& __s, ios_base::openmode __mode) 1338227825Stheraven : basic_iostream<char_type, traits_type>(&__sb_) 1339227825Stheraven{ 1340227825Stheraven if (__sb_.open(__s, __mode) == 0) 1341227825Stheraven this->setstate(ios_base::failbit); 1342227825Stheraven} 1343227825Stheraven 1344227825Stheraven#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES 1345227825Stheraven 1346227825Stheraventemplate <class _CharT, class _Traits> 1347227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1348227825Stheravenbasic_fstream<_CharT, _Traits>::basic_fstream(basic_fstream&& __rhs) 1349227825Stheraven : basic_iostream<char_type, traits_type>(_VSTD::move(__rhs)), 1350227825Stheraven __sb_(_VSTD::move(__rhs.__sb_)) 1351227825Stheraven{ 1352227825Stheraven this->set_rdbuf(&__sb_); 1353227825Stheraven} 1354227825Stheraven 1355227825Stheraventemplate <class _CharT, class _Traits> 1356227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1357227825Stheravenbasic_fstream<_CharT, _Traits>& 1358227825Stheravenbasic_fstream<_CharT, _Traits>::operator=(basic_fstream&& __rhs) 1359227825Stheraven{ 1360227825Stheraven basic_iostream<char_type, traits_type>::operator=(_VSTD::move(__rhs)); 1361227825Stheraven __sb_ = _VSTD::move(__rhs.__sb_); 1362227825Stheraven return *this; 1363227825Stheraven} 1364227825Stheraven 1365227825Stheraven#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES 1366227825Stheraven 1367227825Stheraventemplate <class _CharT, class _Traits> 1368227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1369227825Stheravenvoid 1370227825Stheravenbasic_fstream<_CharT, _Traits>::swap(basic_fstream& __rhs) 1371227825Stheraven{ 1372227825Stheraven basic_iostream<char_type, traits_type>::swap(__rhs); 1373227825Stheraven __sb_.swap(__rhs.__sb_); 1374227825Stheraven} 1375227825Stheraven 1376227825Stheraventemplate <class _CharT, class _Traits> 1377227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1378227825Stheravenvoid 1379227825Stheravenswap(basic_fstream<_CharT, _Traits>& __x, basic_fstream<_CharT, _Traits>& __y) 1380227825Stheraven{ 1381227825Stheraven __x.swap(__y); 1382227825Stheraven} 1383227825Stheraven 1384227825Stheraventemplate <class _CharT, class _Traits> 1385227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1386227825Stheravenbasic_filebuf<_CharT, _Traits>* 1387227825Stheravenbasic_fstream<_CharT, _Traits>::rdbuf() const 1388227825Stheraven{ 1389227825Stheraven return const_cast<basic_filebuf<char_type, traits_type>*>(&__sb_); 1390227825Stheraven} 1391227825Stheraven 1392227825Stheraventemplate <class _CharT, class _Traits> 1393227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1394227825Stheravenbool 1395227825Stheravenbasic_fstream<_CharT, _Traits>::is_open() const 1396227825Stheraven{ 1397227825Stheraven return __sb_.is_open(); 1398227825Stheraven} 1399227825Stheraven 1400227825Stheraventemplate <class _CharT, class _Traits> 1401227825Stheravenvoid 1402227825Stheravenbasic_fstream<_CharT, _Traits>::open(const char* __s, ios_base::openmode __mode) 1403227825Stheraven{ 1404227825Stheraven if (__sb_.open(__s, __mode)) 1405227825Stheraven this->clear(); 1406227825Stheraven else 1407227825Stheraven this->setstate(ios_base::failbit); 1408227825Stheraven} 1409227825Stheraven 1410227825Stheraventemplate <class _CharT, class _Traits> 1411227825Stheravenvoid 1412227825Stheravenbasic_fstream<_CharT, _Traits>::open(const string& __s, ios_base::openmode __mode) 1413227825Stheraven{ 1414227825Stheraven if (__sb_.open(__s, __mode)) 1415227825Stheraven this->clear(); 1416227825Stheraven else 1417227825Stheraven this->setstate(ios_base::failbit); 1418227825Stheraven} 1419227825Stheraven 1420227825Stheraventemplate <class _CharT, class _Traits> 1421227825Stheraveninline _LIBCPP_INLINE_VISIBILITY 1422227825Stheravenvoid 1423227825Stheravenbasic_fstream<_CharT, _Traits>::close() 1424227825Stheraven{ 1425227825Stheraven if (__sb_.close() == 0) 1426227825Stheraven this->setstate(ios_base::failbit); 1427227825Stheraven} 1428227825Stheraven 1429227825Stheraven_LIBCPP_END_NAMESPACE_STD 1430227825Stheraven 1431227825Stheraven#endif // _LIBCPP_FSTREAM 1432