|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #ifndef _LIBCPP___FWD_STREAMBUF_H | 
|  | #define _LIBCPP___FWD_STREAMBUF_H | 
|  |  | 
|  | #include <__config> | 
|  | #include <__fwd/string.h> | 
|  |  | 
|  | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #  pragma GCC system_header | 
|  | #endif | 
|  |  | 
|  | _LIBCPP_BEGIN_NAMESPACE_STD | 
|  |  | 
|  | template <class _CharT, class _Traits = char_traits<_CharT> > | 
|  | class _LIBCPP_TEMPLATE_VIS basic_streambuf; | 
|  |  | 
|  | using streambuf = basic_streambuf<char>; | 
|  |  | 
|  | #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS | 
|  | using wstreambuf = basic_streambuf<wchar_t>; | 
|  | #endif | 
|  |  | 
|  | template <class _CharT, class _Traits> | 
|  | class _LIBCPP_PREFERRED_NAME(streambuf) _LIBCPP_IF_WIDE_CHARACTERS(_LIBCPP_PREFERRED_NAME(wstreambuf)) basic_streambuf; | 
|  |  | 
|  | _LIBCPP_END_NAMESPACE_STD | 
|  |  | 
|  | #endif // _LIBCPP___FWD_STREAMBUF_H |