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llvm-project/libcxx/include/cctype

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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_CCTYPE
#define _LIBCPP_CCTYPE
/*
cctype synopsis
namespace std
{
int isalnum(int c);
int isalpha(int c);
int isblank(int c); // C99
int iscntrl(int c);
int isdigit(int c);
int isgraph(int c);
int islower(int c);
int isprint(int c);
int ispunct(int c);
int isspace(int c);
int isupper(int c);
int isxdigit(int c);
int tolower(int c);
int toupper(int c);
} // std
*/
#include <__config>
#include <ctype.h>
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)
libcxx initial import llvm-svn: 103490
2010-05-12 03:42:16 +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
Put back the undefs that Richard removed. Boost won't build w/o these; specifically the file 'bytes_methods.h' in Apple's python framework defines these. llvm-svn: 265358
2016-04-05 06:49:20 +08:00
#ifdef isalnum
#undef isalnum
#endif
#ifdef isalpha
#undef isalpha
#endif
#ifdef isblank
#undef isblank
#endif
#ifdef iscntrl
#undef iscntrl
#endif
#ifdef isdigit
#undef isdigit
#endif
#ifdef isgraph
#undef isgraph
#endif
#ifdef islower
#undef islower
#endif
#ifdef isprint
#undef isprint
#endif
#ifdef ispunct
#undef ispunct
#endif
#ifdef isspace
#undef isspace
#endif
#ifdef isupper
#undef isupper
#endif
#ifdef isxdigit
#undef isxdigit
#endif
#ifdef tolower
#undef tolower
#endif
#ifdef toupper
#undef toupper
#endif
[libc++] Use the using_if_exists attribute when provided As discussed on cfe-dev [1], use the using_if_exists Clang attribute when the compiler supports it. This makes it easier to port libc++ on top of new platforms that don't fully support the C Standard library. Previously, libc++ would fail to build when trying to import a missing declaration in a <cXXXX> header. With the attribute, the declaration will simply not be imported into namespace std, and hence it won't be available for libc++ to use. In many cases, the declarations were *not* actually required for libc++ to work (they were only surfaced for users to use them as std::XXXX), so not importing them into namespace std is acceptable. The same thing could be achieved by conscious usage of `#ifdef` along with platform detection, however that quickly creates a maintenance problem as libc++ is ported to new platforms. Furthermore, this problem is exacerbated when mixed with vendor internal-only platforms, which can lead to difficulties maintaining a downstream fork of the library. For the time being, we only use the using_if_exists attribute when it is supported. At some point in the future, we will start removing #ifdef paths that are unnecessary when the attribute is supported, and folks who need those #ifdef paths will be required to use a compiler that supports the attribute. [1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
using ::isalnum _LIBCPP_USING_IF_EXISTS;
using ::isalpha _LIBCPP_USING_IF_EXISTS;
using ::isblank _LIBCPP_USING_IF_EXISTS;
using ::iscntrl _LIBCPP_USING_IF_EXISTS;
using ::isdigit _LIBCPP_USING_IF_EXISTS;
using ::isgraph _LIBCPP_USING_IF_EXISTS;
using ::islower _LIBCPP_USING_IF_EXISTS;
using ::isprint _LIBCPP_USING_IF_EXISTS;
using ::ispunct _LIBCPP_USING_IF_EXISTS;
using ::isspace _LIBCPP_USING_IF_EXISTS;
using ::isupper _LIBCPP_USING_IF_EXISTS;
using ::isxdigit _LIBCPP_USING_IF_EXISTS;
using ::tolower _LIBCPP_USING_IF_EXISTS;
using ::toupper _LIBCPP_USING_IF_EXISTS;
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_CCTYPE