path: root/system/include/libcxx/fstream

// -*- C++ -*-
//===------------------------- fstream ------------------------------------===//
//
//                     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_FSTREAM
#define _LIBCPP_FSTREAM

/*
    fstream synopsis

template <class charT, class traits = char_traits<charT> >
class basic_filebuf
    : 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;

    // 27.9.1.2 Constructors/destructor:
    basic_filebuf();
    basic_filebuf(basic_filebuf&& rhs);
    virtual ~basic_filebuf();

    // 27.9.1.3 Assign/swap:
    basic_filebuf& operator=(basic_filebuf&& rhs);
    void swap(basic_filebuf& rhs);

    // 27.9.1.4 Members:
    bool is_open() const;
    basic_filebuf* open(const char* s, ios_base::openmode mode);
    basic_filebuf* open(const string& s, ios_base::openmode mode);
    basic_filebuf* close();

protected:
    // 27.9.1.5 Overridden virtual functions:
    virtual streamsize showmanyc();
    virtual int_type underflow();
    virtual int_type uflow();
    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* s, streamsize n);
    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);
    virtual int sync();
    virtual void imbue(const locale& loc);
};

template <class charT, class traits>
  void
  swap(basic_filebuf<charT, traits>& x, basic_filebuf<charT, traits>& y);

typedef basic_filebuf<char>    filebuf;
typedef basic_filebuf<wchar_t> wfilebuf;

template <class charT, class traits = char_traits<charT> >
class basic_ifstream
    : 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;

    basic_ifstream();
    explicit basic_ifstream(const char* s, ios_base::openmode mode = ios_base::in);
    explicit basic_ifstream(const string& s, ios_base::openmode mode = ios_base::in);
    basic_ifstream(basic_ifstream&& rhs);

    basic_ifstream& operator=(basic_ifstream&& rhs);
    void swap(basic_ifstream& rhs);

    basic_filebuf<char_type, traits_type>* rdbuf() const;
    bool is_open() const;
    void open(const char* s, ios_base::openmode mode = ios_base::in);
    void open(const string& s, ios_base::openmode mode = ios_base::in);
    void close();
};

template <class charT, class traits>
  void
  swap(basic_ifstream<charT, traits>& x, basic_ifstream<charT, traits>& y);

typedef basic_ifstream<char>    ifstream;
typedef basic_ifstream<wchar_t> wifstream;

template <class charT, class traits = char_traits<charT> >
class basic_ofstream
    : 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;

    basic_ofstream();
    explicit basic_ofstream(const char* s, ios_base::openmode mode = ios_base::out);
    explicit basic_ofstream(const string& s, ios_base::openmode mode = ios_base::out);
    basic_ofstream(basic_ofstream&& rhs);

    basic_ofstream& operator=(basic_ofstream&& rhs);
    void swap(basic_ofstream& rhs);

    basic_filebuf<char_type, traits_type>* rdbuf() const;
    bool is_open() const;
    void open(const char* s, ios_base::openmode mode = ios_base::out);
    void open(const string& s, ios_base::openmode mode = ios_base::out);
    void close();
};

template <class charT, class traits>
  void
  swap(basic_ofstream<charT, traits>& x, basic_ofstream<charT, traits>& y);

typedef basic_ofstream<char>    ofstream;
typedef basic_ofstream<wchar_t> wofstream;

template <class charT, class traits=char_traits<charT> >
class basic_fstream
    : 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;

    basic_fstream();
    explicit basic_fstream(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out);
    explicit basic_fstream(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out);
    basic_fstream(basic_fstream&& rhs);

    basic_fstream& operator=(basic_fstream&& rhs);
    void swap(basic_fstream& rhs);

    basic_filebuf<char_type, traits_type>* rdbuf() const;
    bool is_open() const;
    void open(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out);
    void open(const string& s, ios_base::openmode mode = ios_base::in|ios_base::out);
    void close();
};

template <class charT, class traits>
  void swap(basic_fstream<charT, traits>& x, basic_fstream<charT, traits>& y);

typedef basic_fstream<char>    fstream;
typedef basic_fstream<wchar_t> wfstream;

}  // std

*/

#include <__config>
#include <ostream>
#include <istream>
#include <__locale>
#include <cstdio>

#include <__undef_min_max>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _CharT, class _Traits>
class _LIBCPP_TYPE_VIS basic_filebuf
    : 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 typename traits_type::state_type state_type;

    // 27.9.1.2 Constructors/destructor:
    basic_filebuf();
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES