|  | // -*- C++ -*- | 
|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // 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 | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | export namespace std { | 
|  | // Note the Standard does not mark these symbols optional, but libc++'s header | 
|  | // does. So this seems strictly not to be conforming. | 
|  |  | 
|  | // mbstate_t is conditionally here, but always present in cwchar.cppm. To avoid | 
|  | // conflicing declarations omit the using here. | 
|  |  | 
|  | // size_t is conditionally here, but always present in cstddef.cppm. To avoid | 
|  | // conflicing declarations omit the using here. | 
|  |  | 
|  | #if _LIBCPP_HAS_C8RTOMB_MBRTOC8 | 
|  | using std::mbrtoc8 _LIBCPP_USING_IF_EXISTS; | 
|  | using std::c8rtomb _LIBCPP_USING_IF_EXISTS; | 
|  | #endif | 
|  | using std::mbrtoc16 _LIBCPP_USING_IF_EXISTS; | 
|  | using std::c16rtomb _LIBCPP_USING_IF_EXISTS; | 
|  | using std::mbrtoc32 _LIBCPP_USING_IF_EXISTS; | 
|  | using std::c32rtomb _LIBCPP_USING_IF_EXISTS; | 
|  | } // namespace std |