darling-libcxx/include/string.h
Richard Smith ebe55fc655 Instead of asking glibc to provide correct C++ signatures for <string.h>
functions, ask it whether it did provide them after the fact. Some versions of
glibc fail to compile if you make this request and don't also claim to be at
least GCC 4.3.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@260622 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-11 23:51:02 +00:00

111 lines
4.6 KiB
C++

// -*- C++ -*-
//===--------------------------- string.h ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_STRING_H
#define _LIBCPP_STRING_H
/*
string.h synopsis
Macros:
NULL
Types:
size_t
void* memcpy(void* restrict s1, const void* restrict s2, size_t n);
void* memmove(void* s1, const void* s2, size_t n);
char* strcpy (char* restrict s1, const char* restrict s2);
char* strncpy(char* restrict s1, const char* restrict s2, size_t n);
char* strcat (char* restrict s1, const char* restrict s2);
char* strncat(char* restrict s1, const char* restrict s2, size_t n);
int memcmp(const void* s1, const void* s2, size_t n);
int strcmp (const char* s1, const char* s2);
int strncmp(const char* s1, const char* s2, size_t n);
int strcoll(const char* s1, const char* s2);
size_t strxfrm(char* restrict s1, const char* restrict s2, size_t n);
const void* memchr(const void* s, int c, size_t n);
void* memchr( void* s, int c, size_t n);
const char* strchr(const char* s, int c);
char* strchr( char* s, int c);
size_t strcspn(const char* s1, const char* s2);
const char* strpbrk(const char* s1, const char* s2);
char* strpbrk( char* s1, const char* s2);
const char* strrchr(const char* s, int c);
char* strrchr( char* s, int c);
size_t strspn(const char* s1, const char* s2);
const char* strstr(const char* s1, const char* s2);
char* strstr( char* s1, const char* s2);
char* strtok(char* restrict s1, const char* restrict s2);
void* memset(void* s, int c, size_t n);
char* strerror(int errnum);
size_t strlen(const char* s);
*/
#include <__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
#include_next <string.h>
// MSVCRT, GNU libc and its derivates may already have the correct prototype in
// <string.h>. This macro can be defined by users if their C library provides
// the right signature.
#if defined(__CORRECT_ISO_CPP_STRING_H_PROTO) || defined(_LIBCPP_MSVCRT) || \
defined(__sun__) || defined(_STRING_H_CPLUSPLUS_98_CONFORMANCE_)
#define _LIBCPP_STRING_H_HAS_CONST_OVERLOADS
#endif
#if defined(__cplusplus) && !defined(_LIBCPP_STRING_H_HAS_CONST_OVERLOADS) && defined(_LIBCPP_PREFERRED_OVERLOAD)
extern "C++" {
inline _LIBCPP_INLINE_VISIBILITY
char* __libcpp_strchr(const char* __s, int __c) {return (char*)strchr(__s, __c);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
const char* strchr(const char* __s, int __c) {return __libcpp_strchr(__s, __c);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
char* strchr( char* __s, int __c) {return __libcpp_strchr(__s, __c);}
inline _LIBCPP_INLINE_VISIBILITY
char* __libcpp_strpbrk(const char* __s1, const char* __s2) {return (char*)strpbrk(__s1, __s2);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
const char* strpbrk(const char* __s1, const char* __s2) {return __libcpp_strpbrk(__s1, __s2);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
char* strpbrk( char* __s1, const char* __s2) {return __libcpp_strpbrk(__s1, __s2);}
inline _LIBCPP_INLINE_VISIBILITY
char* __libcpp_strrchr(const char* __s, int __c) {return (char*)strrchr(__s, __c);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
const char* strrchr(const char* __s, int __c) {return __libcpp_strrchr(__s, __c);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
char* strrchr( char* __s, int __c) {return __libcpp_strrchr(__s, __c);}
inline _LIBCPP_INLINE_VISIBILITY
void* __libcpp_memchr(const void* __s, int __c, size_t __n) {return (void*)memchr(__s, __c, __n);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
const void* memchr(const void* __s, int __c, size_t __n) {return __libcpp_memchr(__s, __c, __n);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
void* memchr( void* __s, int __c, size_t __n) {return __libcpp_memchr(__s, __c, __n);}
inline _LIBCPP_INLINE_VISIBILITY
char* __libcpp_strstr(const char* __s1, const char* __s2) {return (char*)strstr(__s1, __s2);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
const char* strstr(const char* __s1, const char* __s2) {return __libcpp_strstr(__s1, __s2);}
inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_PREFERRED_OVERLOAD
char* strstr( char* __s1, const char* __s2) {return __libcpp_strstr(__s1, __s2);}
}
#endif
#endif // _LIBCPP_STRING_H