1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #ifndef _LIBCPP___FWD_IOS_H
10 #define _LIBCPP___FWD_IOS_H
11 
12 #include <__config>
13 #include <__fwd/string.h>
14 
15 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
16 #  pragma GCC system_header
17 #endif
18 
19 _LIBCPP_BEGIN_NAMESPACE_STD
20 
21 template <class _CharT, class _Traits = char_traits<_CharT> >
22 class _LIBCPP_TEMPLATE_VIS basic_ios;
23 
24 using ios = basic_ios<char>;
25 #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
26 using wios = basic_ios<wchar_t>;
27 #endif
28 
29 template <class _CharT, class _Traits>
30 class _LIBCPP_PREFERRED_NAME(ios) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wios)) basic_ios;
31 
32 #if defined(_NEWLIB_VERSION)
33 // On newlib, off_t is 'long int'
34 using streamoff = long int; // for char_traits in <string>
35 #else
36 using streamoff = long long; // for char_traits in <string>
37 #endif
38 
39 _LIBCPP_END_NAMESPACE_STD
40 
41 #endif // _LIBCPP___FWD_IOS_H
42