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Yi Kong83283012023-12-13 12:57:00 +09001//===----------------------------------------------------------------------===//
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
21template <class _CharT, class _Traits = char_traits<_CharT> >
22class _LIBCPP_TEMPLATE_VIS basic_ios;
23
24using ios = basic_ios<char>;
25#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
26using wios = basic_ios<wchar_t>;
27#endif
28
29template <class _CharT, class _Traits>
30class _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'
34using streamoff = long int; // for char_traits in <string>
35#else
36using streamoff = long long; // for char_traits in <string>
37#endif
38
39_LIBCPP_END_NAMESPACE_STD
40
41#endif // _LIBCPP___FWD_IOS_H