+/* Copyright (C) 1991-1993,1995-2004,2007,2009 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * ISO C99 Standard: 7.21 String handling <string.h>
+ */
+
+#ifndef _STRING_H
+#define _STRING_H 1
-#ifndef __STRING_H
-#define __STRING_H
#include <features.h>
-#include <sys/types.h>
+
+__BEGIN_DECLS
+
+/* Get size_t and NULL from <stddef.h>. */
+#define __need_size_t
+#define __need_NULL
#include <stddef.h>
-/* Basic string functions */
-/* Return the length of S. */
-extern size_t strlen __P ((__const char *__s));
-/* Append SRC onto DEST. */
-extern char *strcat __P ((char *__restrict __dest,
- __const char *__restrict __src));
-/* Append no more than N characters from SRC onto DEST. */
-extern char *strncat __P ((char *__restrict __dest,
- __const char *__restrict __src, size_t __n));
+__BEGIN_NAMESPACE_STD
+/* Copy N bytes of SRC to DEST. */
+extern void *memcpy (void *__restrict __dest,
+ const void *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(memcpy)
+/* Copy N bytes of SRC to DEST, guaranteeing
+ correct behavior for overlapping strings. */
+extern void *memmove (void *__dest, const void *__src, size_t __n)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(memmove)
+__END_NAMESPACE_STD
+/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
+ Return the position in DEST one byte past where C was copied,
+ or NULL if C was not found in the first N bytes of SRC. */
+#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN
+extern void *memccpy (void *__restrict __dest, const void *__restrict __src,
+ int __c, size_t __n)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(memccpy)
+#endif /* SVID. */
+
+
+__BEGIN_NAMESPACE_STD
+/* Set N bytes of S to C. */
+extern void *memset (void *__s, int __c, size_t __n) __THROW __nonnull ((1));
+libc_hidden_proto(memset)
+
+/* Compare N bytes of S1 and S2. */
+extern int memcmp (const void *__s1, const void *__s2, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(memcmp)
+
+/* Search N bytes of S for C. */
+extern void *memchr (const void *__s, int __c, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(memchr)
+__END_NAMESPACE_STD
+
+#ifdef __USE_GNU
+/* Search in S for C. This is similar to `memchr' but there is no
+ length limit. */
+extern void *rawmemchr (const void *__s, int __c)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(rawmemchr)
+
+/* Search N bytes of S for the final occurrence of C. */
+extern void *memrchr (const void *__s, int __c, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(memrchr)
+#endif
+
+
+__BEGIN_NAMESPACE_STD
/* Copy SRC to DEST. */
-extern char *strcpy __P ((char *__restrict __dest,
- __const char *__restrict __src));
+extern char *strcpy (char *__restrict __dest, const char *__restrict __src)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(strcpy)
/* Copy no more than N characters of SRC to DEST. */
-extern char *strncpy __P ((char *__restrict __dest,
- __const char *__restrict __src, size_t __n));
+extern char *strncpy (char *__restrict __dest,
+ const char *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(strncpy)
+
+/* Append SRC onto DEST. */
+extern char *strcat (char *__restrict __dest, const char *__restrict __src)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(strcat)
+/* Append no more than N characters from SRC onto DEST. */
+extern char *strncat (char *__restrict __dest, const char *__restrict __src,
+ size_t __n) __THROW __nonnull ((1, 2));
+libc_hidden_proto(strncat)
/* Compare S1 and S2. */
-extern int strcmp __P ((__const char *__s1, __const char *__s2));
+extern int strcmp (const char *__s1, const char *__s2)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strcmp)
/* Compare N characters of S1 and S2. */
-extern int strncmp __P ((__const char *__s1, __const char *__s2, size_t __n));
+extern int strncmp (const char *__s1, const char *__s2, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strncmp)
+
+/* Compare the collated forms of S1 and S2. */
+extern int strcoll (const char *__s1, const char *__s2)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strcoll)
+/* Put a transformation of SRC into no more than N bytes of DEST. */
+extern size_t strxfrm (char *__restrict __dest,
+ const char *__restrict __src, size_t __n)
+ __THROW __nonnull ((2));
+__END_NAMESPACE_STD
+
+#if defined __USE_XOPEN2K8 && defined __UCLIBC_HAS_XLOCALE__
+/* The following functions are equivalent to the both above but they
+ take the locale they use for the collation as an extra argument.
+ This is not standardsized but something like will come. */
+# include <xlocale.h>
+/* Compare the collated forms of S1 and S2 using rules from L. */
+extern int strcoll_l (const char *__s1, const char *__s2, __locale_t __l)
+ __THROW __attribute_pure__ __nonnull ((1, 2, 3));
+libc_hidden_proto(strcoll_l)
+/* Put a transformation of SRC into no more than N bytes of DEST. */
+extern size_t strxfrm_l (char *__dest, const char *__src, size_t __n,
+ __locale_t __l) __THROW __nonnull ((2, 4));
+libc_hidden_proto(strxfrm_l)
+#endif
+
+#if defined __USE_SVID || defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+/* Duplicate S, returning an identical malloc'd string. */
+extern char *strdup (const char *__s)
+ __THROW __attribute_malloc__ __nonnull ((1));
+libc_hidden_proto(strdup)
+#endif
+
+/* Return a malloc'd copy of at most N bytes of STRING. The
+ resultant string is terminated even if no null terminator
+ appears before STRING[N]. */
+#if defined __USE_XOPEN2K8
+extern char *strndup (const char *__string, size_t __n)
+ __THROW __attribute_malloc__ __nonnull ((1));
+libc_hidden_proto(strndup)
+#endif
+
+#if defined __USE_GNU && defined __GNUC__
+/* Duplicate S, returning an identical alloca'd string. */
+# define strdupa(s) \
+ (__extension__ \
+ ({ \
+ const char *__old = (s); \
+ size_t __len = strlen (__old) + 1; \
+ char *__new = (char *) __builtin_alloca (__len); \
+ (char *) memcpy (__new, __old, __len); \
+ }))
+
+/* Return an alloca'd copy of at most N bytes of string. */
+# define strndupa(s, n) \
+ (__extension__ \
+ ({ \
+ const char *__old = (s); \
+ size_t __len = strnlen (__old, (n)); \
+ char *__new = (char *) __builtin_alloca (__len + 1); \
+ __new[__len] = '\0'; \
+ (char *) memcpy (__new, __old, __len); \
+ }))
+#endif
+
+__BEGIN_NAMESPACE_STD
/* Find the first occurrence of C in S. */
-extern char *strchr __P ((__const char *__s, int __c));
+extern char *strchr (const char *__s, int __c)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(strchr)
/* Find the last occurrence of C in S. */
-extern char *strrchr __P ((__const char *__s, int __c));
-/* Duplicate S, returning an identical malloc'd string. */
-extern char *strdup __P ((__const char *__s));
+extern char *strrchr (const char *__s, int __c)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(strrchr)
+__END_NAMESPACE_STD
-/* Basic mem functions */
+#ifdef __USE_GNU
+/* This function is similar to `strchr'. But it returns a pointer to
+ the closing NUL byte in case C is not found in S. */
+extern char *strchrnul (const char *__s, int __c)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(strchrnul)
+#endif
-/* Copy N bytes of SRC to DEST. */
-extern __ptr_t memcpy __P ((__ptr_t __restrict __dest,
- __const __ptr_t __restrict __src, size_t __n));
-/* Copy no more than N bytes of SRC to DEST, stopping when C is found.
- Return the position in DEST one byte past where C was copied,
- or NULL if C was not found in the first N bytes of SRC. */
-extern __ptr_t memccpy __P ((__ptr_t __dest, __const __ptr_t __src,
- int __c, size_t __n));
-/* Search N bytes of S for C. */
-extern __ptr_t memchr __P ((__const __ptr_t __s, int __c, size_t __n));
-/* Set N bytes of S to C. */
-extern __ptr_t memset __P ((__ptr_t __s, int __c, size_t __n));
-/* Compare N bytes of S1 and S2. */
-extern int memcmp __P ((__const __ptr_t __s1, __const __ptr_t __s2,
- size_t __n));
-/* Copy N bytes of SRC to DEST, guaranteeing
- correct behavior for overlapping strings. */
-extern __ptr_t memmove __P ((__ptr_t __dest, __const __ptr_t __src,
- size_t __n));
+__BEGIN_NAMESPACE_STD
+/* Return the length of the initial segment of S which
+ consists entirely of characters not in REJECT. */
+extern size_t strcspn (const char *__s, const char *__reject)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strcspn)
+/* Return the length of the initial segment of S which
+ consists entirely of characters in ACCEPT. */
+extern size_t strspn (const char *__s, const char *__accept)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strspn)
+/* Find the first occurrence in S of any character in ACCEPT. */
+extern char *strpbrk (const char *__s, const char *__accept)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strpbrk)
+/* Find the first occurrence of NEEDLE in HAYSTACK. */
+extern char *strstr (const char *__haystack, const char *__needle)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strstr)
-/* Minimal (very!) locale support */
-#define strcoll strcmp
-#define strxfrm strncpy
+/* Divide S into tokens separated by characters in DELIM. */
+extern char *strtok (char *__restrict __s, const char *__restrict __delim)
+ __THROW __nonnull ((2));
+libc_hidden_proto(strtok)
+__END_NAMESPACE_STD
+
+/* Divide S into tokens separated by characters in DELIM. Information
+ passed between calls are stored in SAVE_PTR. */
+#if 0 /* uClibc: disabled */
+extern char *__strtok_r (char *__restrict __s,
+ const char *__restrict __delim,
+ char **__restrict __save_ptr)
+ __THROW __nonnull ((2, 3));
+#endif
+#if defined __USE_POSIX || defined __USE_MISC
+extern char *strtok_r (char *__restrict __s, const char *__restrict __delim,
+ char **__restrict __save_ptr)
+ __THROW __nonnull ((2, 3));
+libc_hidden_proto(strtok_r)
+#endif
-/* BSDisms */
-#define index strchr
-#define rindex strrchr
+#ifdef __USE_GNU
+/* Similar to `strstr' but this function ignores the case of both strings. */
+extern char *strcasestr (const char *__haystack, const char *__needle)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strcasestr)
+#endif
-/* Other common BSD functions */
-/* Set N bytes of S to 0. */
-extern void bzero __P ((__ptr_t __s, size_t __n));
+#ifdef __USE_GNU
+/* Find the first occurrence of NEEDLE in HAYSTACK.
+ NEEDLE is NEEDLELEN bytes long;
+ HAYSTACK is HAYSTACKLEN bytes long. */
+extern void *memmem (const void *__haystack, size_t __haystacklen,
+ const void *__needle, size_t __needlelen)
+ __THROW __attribute_pure__ __nonnull ((1, 3));
+
+/* Copy N bytes of SRC to DEST, return pointer to bytes after the
+ last written byte. */
+#if 0 /* uClibc: disabled */
+extern void *__mempcpy (void *__restrict __dest,
+ const void *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+#endif
+extern void *mempcpy (void *__restrict __dest,
+ const void *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(mempcpy)
+#endif
+
+
+__BEGIN_NAMESPACE_STD
+/* Return the length of S. */
+extern size_t strlen (const char *__s)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(strlen)
+__END_NAMESPACE_STD
+
+#ifdef __USE_XOPEN2K8
+/* Find the length of STRING, but scan at most MAXLEN characters.
+ If no '\0' terminator is found in that many characters, return MAXLEN. */
+extern size_t strnlen (const char *__string, size_t __maxlen)
+ __THROW __attribute_pure__ __nonnull ((1));
+libc_hidden_proto(strnlen)
+#endif
+
+
+__BEGIN_NAMESPACE_STD
+/* Return a string describing the meaning of the `errno' code in ERRNUM. */
+extern char *strerror (int __errnum) __THROW;
+libc_hidden_proto(strerror)
+__END_NAMESPACE_STD
+#if defined __USE_XOPEN2K || defined __USE_MISC
+/* Reentrant version of `strerror'.
+ There are 2 flavors of `strerror_r', GNU which returns the string
+ and may or may not use the supplied temporary buffer and POSIX one
+ which fills the string into the buffer.
+ To use the POSIX version, -D_XOPEN_SOURCE=600 or -D_POSIX_C_SOURCE=200112L
+ without -D_GNU_SOURCE is needed, otherwise the GNU version is
+ preferred. */
+# if defined __USE_XOPEN2K && !defined __USE_GNU
+/* Fill BUF with a string describing the meaning of the `errno' code in
+ ERRNUM. */
+extern int __xpg_strerror_r (int __errnum, char *__buf, size_t __buflen)
+ __THROW __nonnull ((2));
+libc_hidden_proto(__xpg_strerror_r)
+# ifdef __REDIRECT_NTH
+extern int __REDIRECT_NTH (strerror_r,
+ (int __errnum, char *__buf, size_t __buflen),
+ __xpg_strerror_r) __nonnull ((2));
+# else
+# define strerror_r __xpg_strerror_r
+# endif
+# else
+/* If a temporary buffer is required, at most BUFLEN bytes of BUF will be
+ used. */
+extern char *__glibc_strerror_r (int __errnum, char *__buf, size_t __buflen)
+ __THROW __nonnull ((2));
+libc_hidden_proto(__glibc_strerror_r)
+# ifdef __REDIRECT_NTH
+extern char * __REDIRECT_NTH (strerror_r,
+ (int __errnum, char *__buf, size_t __buflen),
+ __glibc_strerror_r) __nonnull ((2));
+# else
+# define strerror_r __glibc_strerror_r
+# endif
+# endif
+#endif
+
+#if 0 /*defined __USE_XOPEN2K8 && defined __UCLIBC_HAS_XLOCALE__*/
+/* Translate error number to string according to the locale L. */
+extern char *strerror_l (int __errnum, __locale_t __l) __THROW;
+#endif
+
+
+/* We define this function always since `bzero' is sometimes needed when
+ the namespace rules does not allow this. */
+#if 0 /* uClibc: disabled */
+extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
+#endif
+
+#ifdef __USE_BSD
+# ifdef __UCLIBC_SUSV3_LEGACY__
/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
-extern void bcopy __P ((__const __ptr_t __src, __ptr_t __dest, size_t __n));
+extern void bcopy (const void *__src, void *__dest, size_t __n)
+ __THROW __nonnull ((1, 2));
+
+/* Set N bytes of S to 0. */
+extern void bzero (void *__s, size_t __n) __THROW __nonnull ((1));
+
+/* Compare N bytes of S1 and S2 (same as memcmp). */
+extern int bcmp (const void *__s1, const void *__s2, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+
+/* Find the first occurrence of C in S (same as strchr). */
+extern char *index (const char *__s, int __c)
+ __THROW __attribute_pure__ __nonnull ((1));
+
+/* Find the last occurrence of C in S (same as strrchr). */
+extern char *rindex (const char *__s, int __c)
+ __THROW __attribute_pure__ __nonnull ((1));
+# else
+# ifdef __UCLIBC_SUSV3_LEGACY_MACROS__
+/* bcopy/bzero/bcmp/index/rindex are marked LEGACY in SuSv3.
+ * They are replaced as proposed by SuSv3. Don't sync this part
+ * with glibc and keep it in sync with strings.h. */
+
+# define bcopy(src,dest,n) (memmove((dest), (src), (n)), (void) 0)
+# define bzero(s,n) (memset((s), '\0', (n)), (void) 0)
+# define bcmp(s1,s2,n) memcmp((s1), (s2), (size_t)(n))
+# define index(s,c) strchr((s), (c))
+# define rindex(s,c) strrchr((s), (c))
+# endif
+# endif
+
+/* Return the position of the first bit set in I, or 0 if none are set.
+ The least-significant bit is position 1, the most-significant 32. */
+extern int ffs (int __i) __THROW __attribute__ ((__const__));
+libc_hidden_proto(ffs)
+
+/* The following two functions are non-standard but necessary for non-32 bit
+ platforms. */
+#ifdef __USE_GNU
+extern int ffsl (long int __l) __THROW __attribute__ ((__const__));
+# ifdef __GNUC__
+__extension__ extern int ffsll (long long int __ll)
+ __THROW __attribute__ ((__const__));
+# endif
+# endif
/* Compare S1 and S2, ignoring case. */
-extern int strcasecmp __P ((__const char *__s1, __const char *__s2));
+extern int strcasecmp (const char *__s1, const char *__s2)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strcasecmp)
+
/* Compare no more than N chars of S1 and S2, ignoring case. */
-extern int strncasecmp __P ((__const char *__s1, __const char *__s2,
- size_t __n));
-/* Find the first occurrence in S of any character in ACCEPT. */
-extern char *strpbrk __P ((__const char *__s, __const char *__accept));
+extern int strncasecmp (const char *__s1, const char *__s2, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strncasecmp)
+#endif /* Use BSD. */
+
+#if defined __USE_XOPEN2K8 && defined __UCLIBC_HAS_XLOCALE__
+/* Again versions of a few functions which use the given locale instead
+ of the global one. */
+extern int strcasecmp_l (const char *__s1, const char *__s2,
+ __locale_t __loc)
+ __THROW __attribute_pure__ __nonnull ((1, 2, 3));
+libc_hidden_proto(strcasecmp_l)
+
+extern int strncasecmp_l (const char *__s1, const char *__s2,
+ size_t __n, __locale_t __loc)
+ __THROW __attribute_pure__ __nonnull ((1, 2, 4));
+libc_hidden_proto(strncasecmp_l)
+#endif
+
+#ifdef __USE_BSD
/* Return the next DELIM-delimited token from *STRINGP,
terminating it with a '\0', and update *STRINGP to point past it. */
-extern char *strsep __P ((char **__restrict __stringp,
- __const char *__restrict __delim));
-/* Find the first occurrence of NEEDLE in HAYSTACK. */
-extern char *strstr __P ((__const char *__haystack, __const char *__needle));
-/* Divide S into tokens separated by characters in DELIM. */
-extern char *strtok __P ((char *__restrict __s,
- __const char *__restrict __delim));
-/* Return the length of the initial segment of S which
- consists entirely of characters not in REJECT. */
-extern size_t strcspn __P ((__const char *__s, __const char *__reject));
-/* Return the length of the initial segment of S which
- consists entirely of characters in ACCEPT. */
-extern size_t strspn __P ((__const char *__s, __const char *__accept));
+extern char *strsep (char **__restrict __stringp,
+ const char *__restrict __delim)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(strsep)
+#endif
+
+#ifdef __USE_XOPEN2K8
+/* Return a string describing the meaning of the signal number in SIG. */
+extern char *strsignal (int __sig) __THROW;
+libc_hidden_proto(strsignal)
+
+/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
+# if 0 /* uClibc: disabled */
+extern char *__stpcpy (char *__restrict __dest, const char *__restrict __src)
+ __THROW __nonnull ((1, 2));
+# endif
+extern char *stpcpy (char *__restrict __dest, const char *__restrict __src)
+ __THROW __nonnull ((1, 2));
+libc_hidden_proto(stpcpy)
+
+/* Copy no more than N characters of SRC to DEST, returning the address of
+ the last character written into DEST. */
+# if 0 /* uClibc: disabled */
+extern char *__stpncpy (char *__restrict __dest,
+ const char *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+# endif
+extern char *stpncpy (char *__restrict __dest,
+ const char *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+#endif
+#ifdef __USE_GNU
+/* Compare S1 and S2 as strings holding name & indices/version numbers. */
+extern int strverscmp (const char *__s1, const char *__s2)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+libc_hidden_proto(strverscmp)
-/* More BSD compatabilty */
-#define bcmp memcmp
+# if 0 /* uClibc does not support strfry or memfrob. */
+/* Sautee STRING briskly. */
+extern char *strfry (char *__string) __THROW __nonnull ((1));
-/* Linux silly hour */
-char *strfry __P ((char *));
+/* Frobnicate N bytes of S. */
+extern void *memfrob (void *__s, size_t __n) __THROW __nonnull ((1));
+# endif
+# ifndef basename
+/* Return the file name within directory of FILENAME. We don't
+ declare the function if the `basename' macro is available (defined
+ in <libgen.h>) which makes the XPG version of this function
+ available. */
+extern char *basename (const char *__filename) __THROW __nonnull ((1));
+# endif
+#endif /* __USE_GNU */
+
+
+#ifdef __USE_BSD
+/* Two OpenBSD extension functions. */
+extern size_t strlcat(char *__restrict dst, const char *__restrict src,
+ size_t n) __THROW __nonnull ((1, 2));
+libc_hidden_proto(strlcat)
+extern size_t strlcpy(char *__restrict dst, const char *__restrict src,
+ size_t n) __THROW __nonnull ((1, 2));
+libc_hidden_proto(strlcpy)
#endif
+
+__END_DECLS
+
+
+#if defined(_LIBC) && defined(__UCLIBC_HAS_STRING_ARCH_OPT__)
+# if defined __i386__
+# include <../libc/string/i386/string.h>
+# endif
+#endif
+
+#endif /* string.h */
OSDN Git Service
