1// boost/filesystem/fstream.hpp ------------------------------------------------------//
2
3// Copyright Beman Dawes 2002
4
5// Distributed under the Boost Software License, Version 1.0.
6// See http://www.boost.org/LICENSE_1_0.txt
7
8// Library home page: http://www.boost.org/libs/filesystem
9
10//--------------------------------------------------------------------------------------//
11
12#ifndef BOOST_FILESYSTEM3_FSTREAM_HPP
13#define BOOST_FILESYSTEM3_FSTREAM_HPP
14
15#include <boost/config.hpp>
16
17# if defined( BOOST_NO_STD_WSTRING )
18# error Configuration not supported: Boost.Filesystem V3 and later requires std::wstring support
19# endif
20
21#include <boost/filesystem/path.hpp>
22#include <iosfwd>
23#include <fstream>
24
25#include <boost/config/abi_prefix.hpp> // must be the last #include
26
27// on Windows, except for standard libaries known to have wchar_t overloads for
28// file stream I/O, use path::string() to get a narrow character c_str()
29#if defined(BOOST_WINDOWS_API) \
30 && (!defined(_CPPLIB_VER) || _CPPLIB_VER < 405 || defined(_STLPORT_VERSION))
31 // !Dinkumware || early Dinkumware || STLPort masquerading as Dinkumware
32# define BOOST_FILESYSTEM_C_STR string().c_str() // use narrow, since wide not available
33#else // use the native c_str, which will be narrow on POSIX, wide on Windows
34# define BOOST_FILESYSTEM_C_STR c_str()
35#endif
36
37namespace boost
38{
39namespace filesystem
40{
41
42//--------------------------------------------------------------------------------------//
43// basic_filebuf //
44//--------------------------------------------------------------------------------------//
45
46 template < class charT, class traits = std::char_traits<charT> >
47 class basic_filebuf : public std::basic_filebuf<charT,traits>
48 {
49 private: // disallow copying
50 basic_filebuf(const basic_filebuf&);
51 const basic_filebuf& operator=(const basic_filebuf&);
52
53 public:
54 basic_filebuf() {}
55 virtual ~basic_filebuf() {}
56
57 basic_filebuf<charT,traits>*
58 open(const path& p, std::ios_base::openmode mode)
59 {
60 return std::basic_filebuf<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode)
61 ? this : 0;
62 }
63 };
64
65//--------------------------------------------------------------------------------------//
66// basic_ifstream //
67//--------------------------------------------------------------------------------------//
68
69 template < class charT, class traits = std::char_traits<charT> >
70 class basic_ifstream : public std::basic_ifstream<charT,traits>
71 {
72 private: // disallow copying
73 basic_ifstream(const basic_ifstream&);
74 const basic_ifstream& operator=(const basic_ifstream&);
75
76 public:
77 basic_ifstream() {}
78
79 // use two signatures, rather than one signature with default second
80 // argument, to workaround VC++ 7.1 bug (ID VSWhidbey 38416)
81
82 explicit basic_ifstream(const path& p)
83 : std::basic_ifstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, std::ios_base::in) {}
84
85 basic_ifstream(const path& p, std::ios_base::openmode mode)
86 : std::basic_ifstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, mode) {}
87
88 void open(const path& p)
89 { std::basic_ifstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, std::ios_base::in); }
90
91 void open(const path& p, std::ios_base::openmode mode)
92 { std::basic_ifstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode); }
93
94 virtual ~basic_ifstream() {}
95 };
96
97//--------------------------------------------------------------------------------------//
98// basic_ofstream //
99//--------------------------------------------------------------------------------------//
100
101 template < class charT, class traits = std::char_traits<charT> >
102 class basic_ofstream : public std::basic_ofstream<charT,traits>
103 {
104 private: // disallow copying
105 basic_ofstream(const basic_ofstream&);
106 const basic_ofstream& operator=(const basic_ofstream&);
107
108 public:
109 basic_ofstream() {}
110
111 // use two signatures, rather than one signature with default second
112 // argument, to workaround VC++ 7.1 bug (ID VSWhidbey 38416)
113
114 explicit basic_ofstream(const path& p)
115 : std::basic_ofstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, std::ios_base::out) {}
116
117 basic_ofstream(const path& p, std::ios_base::openmode mode)
118 : std::basic_ofstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, mode) {}
119
120 void open(const path& p)
121 { std::basic_ofstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, std::ios_base::out); }
122
123 void open(const path& p, std::ios_base::openmode mode)
124 { std::basic_ofstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode); }
125
126 virtual ~basic_ofstream() {}
127 };
128
129//--------------------------------------------------------------------------------------//
130// basic_fstream //
131//--------------------------------------------------------------------------------------//
132
133 template < class charT, class traits = std::char_traits<charT> >
134 class basic_fstream : public std::basic_fstream<charT,traits>
135 {
136 private: // disallow copying
137 basic_fstream(const basic_fstream&);
138 const basic_fstream & operator=(const basic_fstream&);
139
140 public:
141 basic_fstream() {}
142
143 // use two signatures, rather than one signature with default second
144 // argument, to workaround VC++ 7.1 bug (ID VSWhidbey 38416)
145
146 explicit basic_fstream(const path& p)
147 : std::basic_fstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR,
148 std::ios_base::in | std::ios_base::out) {}
149
150 basic_fstream(const path& p, std::ios_base::openmode mode)
151 : std::basic_fstream<charT,traits>(p.BOOST_FILESYSTEM_C_STR, mode) {}
152
153 void open(const path& p)
154 { std::basic_fstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR,
155 std::ios_base::in | std::ios_base::out); }
156
157 void open(const path& p, std::ios_base::openmode mode)
158 { std::basic_fstream<charT,traits>::open(p.BOOST_FILESYSTEM_C_STR, mode); }
159
160 virtual ~basic_fstream() {}
161
162 };
163
164//--------------------------------------------------------------------------------------//
165// typedefs //
166//--------------------------------------------------------------------------------------//
167
168 typedef basic_filebuf<char> filebuf;
169 typedef basic_ifstream<char> ifstream;
170 typedef basic_ofstream<char> ofstream;
171 typedef basic_fstream<char> fstream;
172
173 typedef basic_filebuf<wchar_t> wfilebuf;
174 typedef basic_ifstream<wchar_t> wifstream;
175 typedef basic_ofstream<wchar_t> wofstream;
176 typedef basic_fstream<wchar_t> wfstream;
177
178} // namespace filesystem
179} // namespace boost
180
181#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
182#endif // BOOST_FILESYSTEM3_FSTREAM_HPP
183