c3656afdf1
This reverts commit c861fe8a71e64f3d2108c58147e7375cd9314521. Unfortunately, this use of hidden visibility attributes causes user-defined specializations of standard-library types to also be marked hidden by default, which is incorrect. See discussion thread on #131156. ...and also reverts the follow-up commits: Revert "[libc++] Add explicit ABI annotations to functions from the block runtime declared in <__functional/function.h> (#140592)" This reverts commit 3e4c9dc299c35155934688184319d391b298fff7. Revert "[libc++] Make ABI annotations explicit for windows-specific code (#140507)" This reverts commit f73287e623a6c2e4a3485832bc3e10860cd26eb5. Revert "[libc++][NFC] Replace a few "namespace std" with the correct macro (#140510)" This reverts commit 1d411f27c769a32cb22ce50b9dc4421e34fd40dd.
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <__config>
|
|
#if _LIBCPP_HAS_FILESYSTEM
|
|
# include <fstream>
|
|
#endif
|
|
#include <ostream>
|
|
|
|
#include "std_stream.h"
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
_LIBCPP_EXPORTED_FROM_ABI FILE* __get_ostream_file(ostream& __os) {
|
|
// dynamic_cast requires RTTI, this only affects users whose vendor builds
|
|
// the dylib with RTTI disabled. It does not affect users who build with RTTI
|
|
// disabled but use a dylib where the RTTI is enabled.
|
|
//
|
|
// Returning a nullptr means the stream is not considered a terminal and the
|
|
// special terminal handling is not done. The terminal handling is mainly of
|
|
// importance on Windows.
|
|
#if _LIBCPP_HAS_RTTI
|
|
auto* __rdbuf = __os.rdbuf();
|
|
# if _LIBCPP_HAS_FILESYSTEM
|
|
if (auto* __buffer = dynamic_cast<filebuf*>(__rdbuf))
|
|
return __buffer->__file_;
|
|
# endif
|
|
|
|
if (auto* __buffer = dynamic_cast<__stdoutbuf<char>*>(__rdbuf))
|
|
return __buffer->__file_;
|
|
#endif // _LIBCPP_HAS_RTTI
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|