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llvm-project/libcxx/include/iostream

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libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
// -*- C++ -*-
[runtimes][NFC] Remove filenames at the top of the license notice We've stopped doing it in libc++ for a while now because these names would end up rotting as we move things around and copy/paste stuff. This cleans up all the existing files so as to stop the spreading as people copy-paste headers around.
2021-11-18 05:25:01 +08:00
//===----------------------------------------------------------------------===//
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
//
Update more file headers across all of the LLVM projects in the monorepo to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
2019-01-19 18:56:40 +08:00
// 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
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_IOSTREAM
#define _LIBCPP_IOSTREAM
/*
iostream synopsis
#include <ios>
#include <istream>
#include <ostream>
[libc++] Alphabetize and include-what-you-use. NFCI. Differential Revision: https://reviews.llvm.org/D102781
2021-05-19 23:57:04 +08:00
#include <streambuf>
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
namespace std {
extern istream cin;
extern ostream cout;
extern ostream cerr;
extern ostream clog;
extern wistream wcin;
extern wostream wcout;
extern wostream wcerr;
extern wostream wclog;
} // std
*/
#include <__config>
#include <ios>
#include <istream>
#include <ostream>
[libc++] Alphabetize and include-what-you-use. NFCI. Differential Revision: https://reviews.llvm.org/D102781
2021-05-19 23:57:04 +08:00
#include <streambuf>
[libc++] Add the version header to all headers. Some headers which require the version header depend on other headers to provide it. Include the version header in all top-level headers to make sure a header cleanup can't remove the version header. Note this doesn't add the version header to the c headers. Reviewed By: #libc, Quuxplusone, ldionne Differential Revision: https://reviews.llvm.org/D116172
2021-12-23 01:14:14 +08:00
#include <version>
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
Windows support by Ruben Van Boxem. llvm-svn: 142235
2011-10-18 04:05:10 +08:00
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
[libc++] Normalize all our '#pragma GCC system_header', and regression-test. Now we'll notice if a header forgets to include this magic phrase. Differential Revision: https://reviews.llvm.org/D118800
2022-02-02 09:16:40 +08:00
# pragma GCC system_header
Windows support by Ruben Van Boxem. llvm-svn: 142235
2011-10-18 04:05:10 +08:00
#endif
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
_LIBCPP_BEGIN_NAMESPACE_STD
No functionality change at this time. I've split _LIBCPP_VISIBLE up into two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS. This is in preparation for taking advantage of clang's new __type_visibility__ attribute. llvm-svn: 176593
2013-03-07 07:30:19 +08:00
extern _LIBCPP_FUNC_VIS istream cin;
Make the presence of stdin and stdout optional. The idea behind Nuxi CloudABI is that it is targeted at (but not limited to) running networked services in a sandboxed environment. The model behind stdin, stdout and stderr is strongly focused on interactive tools in a command shell. CloudABI does not support the notion of stdin and stdout, as 'standard input/output' does not apply to services. The concept of stderr does makes sense though, as services do need some mechanism to log error messages in a uniform way. This patch extends libc++ in such a way that std::cin and std::cout and the associated <cstdio>/<cwchar> functions can be disabled through the flags _LIBCPP_HAS_NO_STDIN and _LIBCPP_HAS_NO_STDOUT, respectively. At the same time it attempts to clean up src/iostream.cpp a bit. Instead of using a single array of mbstate_t objects and hardcoding the array indices, it creates separate objects that declared next to the iostream objects and their buffers. The code is also restructured by interleaving the construction and setup of c* and wc* objects. That way it is more obvious that this is done identically. The c* and wc* objects already have separate unit tests. Make use of this fact by adding XFAILs in case libcpp-has-no-std* is set. That way the tests work in both directions. If stdin or stdout is disabled, these tests will therefore test for the absence of c* and wc*. Differential Revision: http://reviews.llvm.org/D8340 llvm-svn: 233275
2015-03-26 22:35:46 +08:00
extern _LIBCPP_FUNC_VIS ostream cout;
extern _LIBCPP_FUNC_VIS ostream cerr;
extern _LIBCPP_FUNC_VIS ostream clog;
[libc++] Add an option to disable wide character support in libc++ Some embedded platforms do not wish to support the C library functionality for handling wchar_t because they have no use for it. It makes sense for libc++ to work properly on those platforms, so this commit adds a carve-out of functionality for wchar_t. Unfortunately, unlike some other carve-outs (e.g. random device), this patch touches several parts of the library. However, despite the wide impact of this patch, I still think it is important to support this configuration since it makes it much simpler to port libc++ to some embedded platforms. Differential Revision: https://reviews.llvm.org/D111265
2021-08-24 03:32:36 +08:00
#ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS
extern _LIBCPP_FUNC_VIS wistream wcin;
extern _LIBCPP_FUNC_VIS wostream wcout;
extern _LIBCPP_FUNC_VIS wostream wcerr;
No functionality change at this time. I've split _LIBCPP_VISIBLE up into two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS. This is in preparation for taking advantage of clang's new __type_visibility__ attribute. llvm-svn: 176593
2013-03-07 07:30:19 +08:00
extern _LIBCPP_FUNC_VIS wostream wclog;
[libc++] Add an option to disable wide character support in libc++ Some embedded platforms do not wish to support the C library functionality for handling wchar_t because they have no use for it. It makes sense for libc++ to work properly on those platforms, so this commit adds a carve-out of functionality for wchar_t. Unfortunately, unlike some other carve-outs (e.g. random device), this patch touches several parts of the library. However, despite the wide impact of this patch, I still think it is important to support this configuration since it makes it much simpler to port libc++ to some embedded platforms. Differential Revision: https://reviews.llvm.org/D111265
2021-08-24 03:32:36 +08:00
#endif
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +08:00
_LIBCPP_END_NAMESPACE_STD
[libc++] NFC: Normalize `#endif //` comment indentation
2021-04-21 00:03:32 +08:00
#endif // _LIBCPP_IOSTREAM