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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP_CSTRING11#define _LIBCPP_CSTRING12 13/*14 cstring synopsis15 16Macros:17 18 NULL19 20namespace std21{22 23Types:24 25 size_t26 27void* memcpy(void* restrict s1, const void* restrict s2, size_t n);28void* memmove(void* s1, const void* s2, size_t n);29char* strcpy (char* restrict s1, const char* restrict s2);30char* strncpy(char* restrict s1, const char* restrict s2, size_t n);31char* strcat (char* restrict s1, const char* restrict s2);32char* strncat(char* restrict s1, const char* restrict s2, size_t n);33int memcmp(const void* s1, const void* s2, size_t n);34int strcmp (const char* s1, const char* s2);35int strncmp(const char* s1, const char* s2, size_t n);36int strcoll(const char* s1, const char* s2);37size_t strxfrm(char* restrict s1, const char* restrict s2, size_t n);38const void* memchr(const void* s, int c, size_t n);39 void* memchr( void* s, int c, size_t n);40const char* strchr(const char* s, int c);41 char* strchr( char* s, int c);42size_t strcspn(const char* s1, const char* s2);43const char* strpbrk(const char* s1, const char* s2);44 char* strpbrk( char* s1, const char* s2);45const char* strrchr(const char* s, int c);46 char* strrchr( char* s, int c);47size_t strspn(const char* s1, const char* s2);48const char* strstr(const char* s1, const char* s2);49 char* strstr( char* s1, const char* s2);50char* strtok(char* restrict s1, const char* restrict s2);51void* memset(void* s, int c, size_t n);52char* strerror(int errnum);53size_t strlen(const char* s);54 55} // std56 57*/58 59#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)60# include <__cxx03/cstring>61#else62# include <__config>63# include <__cstddef/size_t.h>64# include <__type_traits/is_constant_evaluated.h>65 66# include <string.h>67 68# ifndef _LIBCPP_STRING_H69# error <cstring> tried including <string.h> but didn't find libc++'s <string.h> header. \70 This usually means that your header search paths are not configured properly. \71 The header search paths should contain the C++ Standard Library headers before \72 any C Standard Library, and you are probably using compiler flags that make that \73 not be the case.74# endif75 76# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)77# pragma GCC system_header78# endif79 80_LIBCPP_BEGIN_NAMESPACE_STD81 82using ::memcpy _LIBCPP_USING_IF_EXISTS;83using ::memmove _LIBCPP_USING_IF_EXISTS;84using ::strcpy _LIBCPP_USING_IF_EXISTS;85using ::strncpy _LIBCPP_USING_IF_EXISTS;86using ::strcat _LIBCPP_USING_IF_EXISTS;87using ::strncat _LIBCPP_USING_IF_EXISTS;88using ::memcmp _LIBCPP_USING_IF_EXISTS;89using ::strcmp _LIBCPP_USING_IF_EXISTS;90using ::strncmp _LIBCPP_USING_IF_EXISTS;91using ::strcoll _LIBCPP_USING_IF_EXISTS;92using ::strxfrm _LIBCPP_USING_IF_EXISTS;93using ::memchr _LIBCPP_USING_IF_EXISTS;94using ::strchr _LIBCPP_USING_IF_EXISTS;95using ::strcspn _LIBCPP_USING_IF_EXISTS;96using ::strpbrk _LIBCPP_USING_IF_EXISTS;97using ::strrchr _LIBCPP_USING_IF_EXISTS;98using ::strspn _LIBCPP_USING_IF_EXISTS;99using ::strstr _LIBCPP_USING_IF_EXISTS;100using ::strtok _LIBCPP_USING_IF_EXISTS;101using ::memset _LIBCPP_USING_IF_EXISTS;102using ::strerror _LIBCPP_USING_IF_EXISTS;103using ::strlen _LIBCPP_USING_IF_EXISTS;104 105_LIBCPP_END_NAMESPACE_STD106 107#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)108 109#endif // _LIBCPP_CSTRING110