e78f53d1e8
This reverts commit 68c04b0ae6.
This disables the IWYU mapping that caused the failure, since
the headers aren't reachable for now.
This is the first part of the "Freezing C++03 headers" proposal
explained in
https://discourse.llvm.org/t/rfc-freezing-c-03-headers-in-libc/77319/58.
This patch mechanically copies the headers as of the LLVM 19.1 release
into a subdirectory of libc++ so that we can start using these headers
when building in C++03 mode. We are going to be backporting important
changes to that copy of the headers until the LLVM 21 release. After the
LLVM 21 release, only critical bugfixes will be fixed in the C++03 copy
of the headers.
This patch only performs a copy of the headers -- these headers are
still unused by the rest of the codebase.
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CSTRING
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#define _LIBCPP_CSTRING
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/*
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cstring synopsis
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Macros:
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NULL
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namespace std
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{
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Types:
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size_t
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void* memcpy(void* restrict s1, const void* restrict s2, size_t n);
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void* memmove(void* s1, const void* s2, size_t n);
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char* strcpy (char* restrict s1, const char* restrict s2);
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char* strncpy(char* restrict s1, const char* restrict s2, size_t n);
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char* strcat (char* restrict s1, const char* restrict s2);
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char* strncat(char* restrict s1, const char* restrict s2, size_t n);
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int memcmp(const void* s1, const void* s2, size_t n);
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int strcmp (const char* s1, const char* s2);
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int strncmp(const char* s1, const char* s2, size_t n);
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int strcoll(const char* s1, const char* s2);
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size_t strxfrm(char* restrict s1, const char* restrict s2, size_t n);
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const void* memchr(const void* s, int c, size_t n);
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void* memchr( void* s, int c, size_t n);
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const char* strchr(const char* s, int c);
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char* strchr( char* s, int c);
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size_t strcspn(const char* s1, const char* s2);
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const char* strpbrk(const char* s1, const char* s2);
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char* strpbrk( char* s1, const char* s2);
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const char* strrchr(const char* s, int c);
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char* strrchr( char* s, int c);
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size_t strspn(const char* s1, const char* s2);
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const char* strstr(const char* s1, const char* s2);
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char* strstr( char* s1, const char* s2);
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char* strtok(char* restrict s1, const char* restrict s2);
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void* memset(void* s, int c, size_t n);
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char* strerror(int errnum);
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size_t strlen(const char* s);
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} // std
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*/
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#include <__config>
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#include <__type_traits/is_constant_evaluated.h>
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#include <string.h>
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#ifndef _LIBCPP_STRING_H
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# error <cstring> tried including <string.h> but didn't find libc++'s <string.h> header. \
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This usually means that your header search paths are not configured properly. \
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The header search paths should contain the C++ Standard Library headers before \
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any C Standard Library, and you are probably using compiler flags that make that \
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not be the case.
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#endif
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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using ::size_t _LIBCPP_USING_IF_EXISTS;
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using ::memcpy _LIBCPP_USING_IF_EXISTS;
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using ::memmove _LIBCPP_USING_IF_EXISTS;
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using ::strcpy _LIBCPP_USING_IF_EXISTS;
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using ::strncpy _LIBCPP_USING_IF_EXISTS;
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using ::strcat _LIBCPP_USING_IF_EXISTS;
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using ::strncat _LIBCPP_USING_IF_EXISTS;
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using ::memcmp _LIBCPP_USING_IF_EXISTS;
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using ::strcmp _LIBCPP_USING_IF_EXISTS;
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using ::strncmp _LIBCPP_USING_IF_EXISTS;
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using ::strcoll _LIBCPP_USING_IF_EXISTS;
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using ::strxfrm _LIBCPP_USING_IF_EXISTS;
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using ::memchr _LIBCPP_USING_IF_EXISTS;
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using ::strchr _LIBCPP_USING_IF_EXISTS;
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using ::strcspn _LIBCPP_USING_IF_EXISTS;
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using ::strpbrk _LIBCPP_USING_IF_EXISTS;
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using ::strrchr _LIBCPP_USING_IF_EXISTS;
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using ::strspn _LIBCPP_USING_IF_EXISTS;
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using ::strstr _LIBCPP_USING_IF_EXISTS;
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using ::strtok _LIBCPP_USING_IF_EXISTS;
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using ::memset _LIBCPP_USING_IF_EXISTS;
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using ::strerror _LIBCPP_USING_IF_EXISTS;
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using ::strlen _LIBCPP_USING_IF_EXISTS;
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_CSTRING
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