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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-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___FWD_ISTREAM_H10#define _LIBCPP___FWD_ISTREAM_H11 12#include <__config>13#include <__fwd/string.h>14 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)16# pragma GCC system_header17#endif18 19_LIBCPP_BEGIN_NAMESPACE_STD20 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_CHARACTERS31using wistream = basic_istream<wchar_t>;32using wiostream = basic_iostream<wchar_t>;33#endif34 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_STD42 43#endif // _LIBCPP___FWD_ISTREAM_H44