2 //===--------------------------- iosfwd -----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_IOSFWD
12 #define _LIBCPP_IOSFWD
20 template<class charT> struct char_traits;
21 template<> struct char_traits<char>;
22 template<> struct char_traits<char8_t>; // C++20
23 template<> struct char_traits<char16_t>;
24 template<> struct char_traits<char32_t>;
25 template<> struct char_traits<wchar_t>;
27 template<class T> class allocator;
30 template <class charT, class traits = char_traits<charT> > class basic_ios;
32 template <class charT, class traits = char_traits<charT> > class basic_streambuf;
33 template <class charT, class traits = char_traits<charT> > class basic_istream;
34 template <class charT, class traits = char_traits<charT> > class basic_ostream;
35 template <class charT, class traits = char_traits<charT> > class basic_iostream;
37 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
38 class basic_stringbuf;
39 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
40 class basic_istringstream;
41 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
42 class basic_ostringstream;
43 template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
44 class basic_stringstream;
46 template <class charT, class traits = char_traits<charT> > class basic_filebuf;
47 template <class charT, class traits = char_traits<charT> > class basic_ifstream;
48 template <class charT, class traits = char_traits<charT> > class basic_ofstream;
49 template <class charT, class traits = char_traits<charT> > class basic_fstream;
51 template <class charT, class traits = char_traits<charT> > class istreambuf_iterator;
52 template <class charT, class traits = char_traits<charT> > class ostreambuf_iterator;
54 typedef basic_ios<char> ios;
55 typedef basic_ios<wchar_t> wios;
57 typedef basic_streambuf<char> streambuf;
58 typedef basic_istream<char> istream;
59 typedef basic_ostream<char> ostream;
60 typedef basic_iostream<char> iostream;
62 typedef basic_stringbuf<char> stringbuf;
63 typedef basic_istringstream<char> istringstream;
64 typedef basic_ostringstream<char> ostringstream;
65 typedef basic_stringstream<char> stringstream;
67 typedef basic_filebuf<char> filebuf;
68 typedef basic_ifstream<char> ifstream;
69 typedef basic_ofstream<char> ofstream;
70 typedef basic_fstream<char> fstream;
72 typedef basic_streambuf<wchar_t> wstreambuf;
73 typedef basic_istream<wchar_t> wistream;
74 typedef basic_ostream<wchar_t> wostream;
75 typedef basic_iostream<wchar_t> wiostream;
77 typedef basic_stringbuf<wchar_t> wstringbuf;
78 typedef basic_istringstream<wchar_t> wistringstream;
79 typedef basic_ostringstream<wchar_t> wostringstream;
80 typedef basic_stringstream<wchar_t> wstringstream;
82 typedef basic_filebuf<wchar_t> wfilebuf;
83 typedef basic_ifstream<wchar_t> wifstream;
84 typedef basic_ofstream<wchar_t> wofstream;
85 typedef basic_fstream<wchar_t> wfstream;
87 template <class state> class fpos;
88 typedef fpos<char_traits<char>::state_type> streampos;
89 typedef fpos<char_traits<wchar_t>::state_type> wstreampos;
96 #include <wchar.h> // for mbstate_t
98 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
99 #pragma GCC system_header
102 _LIBCPP_BEGIN_NAMESPACE_STD
104 class _LIBCPP_TYPE_VIS ios_base;
106 template<class _CharT> struct _LIBCPP_TEMPLATE_VIS char_traits;
107 template<> struct char_traits<char>;
108 #ifndef _LIBCPP_NO_HAS_CHAR8_T
109 template<> struct char_traits<char8_t>;
111 template<> struct char_traits<char16_t>;
112 template<> struct char_traits<char32_t>;
113 template<> struct char_traits<wchar_t>;
115 template<class _Tp> class _LIBCPP_TEMPLATE_VIS allocator;
117 template <class _CharT, class _Traits = char_traits<_CharT> >
118 class _LIBCPP_TEMPLATE_VIS basic_ios;
120 template <class _CharT, class _Traits = char_traits<_CharT> >
121 class _LIBCPP_TEMPLATE_VIS basic_streambuf;
122 template <class _CharT, class _Traits = char_traits<_CharT> >
123 class _LIBCPP_TEMPLATE_VIS basic_istream;
124 template <class _CharT, class _Traits = char_traits<_CharT> >
125 class _LIBCPP_TEMPLATE_VIS basic_ostream;
126 template <class _CharT, class _Traits = char_traits<_CharT> >
127 class _LIBCPP_TEMPLATE_VIS basic_iostream;
129 template <class _CharT, class _Traits = char_traits<_CharT>,
130 class _Allocator = allocator<_CharT> >
131 class _LIBCPP_TEMPLATE_VIS basic_stringbuf;
132 template <class _CharT, class _Traits = char_traits<_CharT>,
133 class _Allocator = allocator<_CharT> >
134 class _LIBCPP_TEMPLATE_VIS basic_istringstream;
135 template <class _CharT, class _Traits = char_traits<_CharT>,
136 class _Allocator = allocator<_CharT> >
137 class _LIBCPP_TEMPLATE_VIS basic_ostringstream;
138 template <class _CharT, class _Traits = char_traits<_CharT>,
139 class _Allocator = allocator<_CharT> >
140 class _LIBCPP_TEMPLATE_VIS basic_stringstream;
142 template <class _CharT, class _Traits = char_traits<_CharT> >
143 class _LIBCPP_TEMPLATE_VIS basic_filebuf;
144 template <class _CharT, class _Traits = char_traits<_CharT> >
145 class _LIBCPP_TEMPLATE_VIS basic_ifstream;
146 template <class _CharT, class _Traits = char_traits<_CharT> >
147 class _LIBCPP_TEMPLATE_VIS basic_ofstream;
148 template <class _CharT, class _Traits = char_traits<_CharT> >
149 class _LIBCPP_TEMPLATE_VIS basic_fstream;
151 template <class _CharT, class _Traits = char_traits<_CharT> >
152 class _LIBCPP_TEMPLATE_VIS istreambuf_iterator;
153 template <class _CharT, class _Traits = char_traits<_CharT> >
154 class _LIBCPP_TEMPLATE_VIS ostreambuf_iterator;
156 typedef basic_ios<char> ios;
157 typedef basic_ios<wchar_t> wios;
159 typedef basic_streambuf<char> streambuf;
160 typedef basic_istream<char> istream;
161 typedef basic_ostream<char> ostream;
162 typedef basic_iostream<char> iostream;
164 typedef basic_stringbuf<char> stringbuf;
165 typedef basic_istringstream<char> istringstream;
166 typedef basic_ostringstream<char> ostringstream;
167 typedef basic_stringstream<char> stringstream;
169 typedef basic_filebuf<char> filebuf;
170 typedef basic_ifstream<char> ifstream;
171 typedef basic_ofstream<char> ofstream;
172 typedef basic_fstream<char> fstream;
174 typedef basic_streambuf<wchar_t> wstreambuf;
175 typedef basic_istream<wchar_t> wistream;
176 typedef basic_ostream<wchar_t> wostream;
177 typedef basic_iostream<wchar_t> wiostream;
179 typedef basic_stringbuf<wchar_t> wstringbuf;
180 typedef basic_istringstream<wchar_t> wistringstream;
181 typedef basic_ostringstream<wchar_t> wostringstream;
182 typedef basic_stringstream<wchar_t> wstringstream;
184 typedef basic_filebuf<wchar_t> wfilebuf;
185 typedef basic_ifstream<wchar_t> wifstream;
186 typedef basic_ofstream<wchar_t> wofstream;
187 typedef basic_fstream<wchar_t> wfstream;
189 template <class _State> class _LIBCPP_TEMPLATE_VIS fpos;
190 typedef fpos<mbstate_t> streampos;
191 typedef fpos<mbstate_t> wstreampos;
192 #ifndef _LIBCPP_NO_HAS_CHAR8_T
193 typedef fpos<mbstate_t> u8streampos;
195 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
196 typedef fpos<mbstate_t> u16streampos;
197 typedef fpos<mbstate_t> u32streampos;
198 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
200 #if defined(_NEWLIB_VERSION)
201 // On newlib, off_t is 'long int'
202 typedef long int streamoff; // for char_traits in <string>
204 typedef long long streamoff; // for char_traits in <string>
207 template <class _CharT, // for <stdexcept>
208 class _Traits = char_traits<_CharT>,
209 class _Allocator = allocator<_CharT> >
210 class _LIBCPP_TEMPLATE_VIS basic_string;
211 typedef basic_string<char, char_traits<char>, allocator<char> > string;
212 typedef basic_string<wchar_t, char_traits<wchar_t>, allocator<wchar_t> > wstring;
215 // Include other forward declarations here
216 template <class _Tp, class _Alloc = allocator<_Tp> >
217 class _LIBCPP_TEMPLATE_VIS vector;
219 _LIBCPP_END_NAMESPACE_STD
221 #endif // _LIBCPP_IOSFWD