musl/include/string.h
Rich Felker c8a9c22173 restore type of NULL to void * except when used in C++ programs
unfortunately this eliminates the ability of the compiler to diagnose
some dangerous/incorrect usage, but POSIX requires (as an extension to
the C language, i.e. CX shaded) that NULL have type void *. plain C
allows it to be defined as any null pointer constant.

the definition 0L is preserved for C++ rather than reverting to plain
0 to avoid dangerous behavior in non-conforming programs which use
NULL as a variadic sentinel. (it's impossible to use (void *)0 for C++
since C++ lacks the proper implicit pointer conversions, and other
popular alternatives like the GCC __null extension seem non-conforming
to the standard's requirements.)
2013-11-24 21:42:55 -05:00

107 lines
3.0 KiB
C

#ifndef _STRING_H
#define _STRING_H
#ifdef __cplusplus
extern "C" {
#endif
#include <features.h>
#ifdef __cplusplus
#define NULL 0L
#else
#define NULL ((void*)0)
#endif
#define __NEED_size_t
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
#define __NEED_locale_t
#endif
#include <bits/alltypes.h>
void *memcpy (void *__restrict, const void *__restrict, size_t);
void *memmove (void *, const void *, size_t);
void *memset (void *, int, size_t);
int memcmp (const void *, const void *, size_t);
void *memchr (const void *, int, size_t);
char *strcpy (char *__restrict, const char *__restrict);
char *strncpy (char *__restrict, const char *__restrict, size_t);
char *strcat (char *__restrict, const char *__restrict);
char *strncat (char *__restrict, const char *__restrict, size_t);
int strcmp (const char *, const char *);
int strncmp (const char *, const char *, size_t);
int strcoll (const char *, const char *);
size_t strxfrm (char *__restrict, const char *__restrict, size_t);
char *strchr (const char *, int);
char *strrchr (const char *, int);
size_t strcspn (const char *, const char *);
size_t strspn (const char *, const char *);
char *strpbrk (const char *, const char *);
char *strstr (const char *, const char *);
char *strtok (char *__restrict, const char *__restrict);
size_t strlen (const char *);
char *strerror (int);
#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
#include <strings.h>
#endif
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
char *strtok_r (char *__restrict, const char *__restrict, char **__restrict);
int strerror_r (int, char *, size_t);
char *stpcpy(char *__restrict, const char *__restrict);
char *stpncpy(char *__restrict, const char *__restrict, size_t);
size_t strnlen (const char *, size_t);
char *strdup (const char *);
char *strndup (const char *, size_t);
char *strsignal(int);
char *strerror_l (int, locale_t);
int strcoll_l (const char *, const char *, locale_t);
size_t strxfrm_l (char *__restrict, const char *__restrict, size_t, locale_t);
#endif
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
void *memccpy (void *__restrict, const void *__restrict, int, size_t);
#endif
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
char *strsep(char **, const char *);
size_t strlcat (char *, const char *, size_t);
size_t strlcpy (char *, const char *, size_t);
#endif
#ifdef _GNU_SOURCE
#define strdupa(x) strcpy(alloca(strlen(x)+1),x)
int strverscmp (const char *, const char *);
int strcasecmp_l (const char *, const char *, locale_t);
int strncasecmp_l (const char *, const char *, size_t, locale_t);
char *strchrnul(const char *, int);
char *strcasestr(const char *, const char *);
void *memmem(const void *, size_t, const void *, size_t);
void *memrchr(const void *, int, size_t);
void *mempcpy(void *, const void *, size_t);
#ifndef __cplusplus
char *basename();
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif