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_ISTREAM_H
10#define _LIBCPP___FWD_ISTREAM_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 basic_istream;
23
24template <class _CharT, class _Traits = char_traits<_CharT> >
25class basic_iostream;
26
27using istream = basic_istream<char>;
28using iostream = basic_iostream<char>;
29
30#if _LIBCPP_HAS_WIDE_CHARACTERS
31using wistream = basic_istream<wchar_t>;
32using wiostream = basic_iostream<wchar_t>;
33#endif
34
35template <class _CharT, class _Traits>
36class _LIBCPP_PREFERRED_NAME(istream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wistream)) basic_istream;
37
38template <class _CharT, class _Traits>
39class _LIBCPP_PREFERRED_NAME(iostream) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wiostream)) basic_iostream;
40
41_LIBCPP_END_NAMESPACE_STD
42
43#endif // _LIBCPP___FWD_ISTREAM_H
44