+/* Copyright (C) 1991,92,93,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
-#ifndef __STRING_H
-#define __STRING_H
-#include <features.h>
-#include <sys/types.h>
-#include <stddef.h>
+ 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.
-/* Basic string functions */
+ 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.
-/* 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));
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
-/* Copy SRC to DEST. */
-extern char *strcpy __P ((char *__restrict __dest,
- __const char *__restrict __src));
-extern char *stpcpy __P ((char *__restrict __dest,
- __const char *__restrict __src));
-/* Copy no more than N characters of SRC to DEST. */
-extern char *strncpy __P ((char *__restrict __dest,
- __const char *__restrict __src, size_t __n));
+/*
+ * ISO C99 Standard: 7.21 String handling <string.h>
+ */
-/* Compare S1 and S2. */
-extern int strcmp __P ((__const char *__s1, __const char *__s2));
-/* Compare N characters of S1 and S2. */
-extern int strncmp __P ((__const char *__s1, __const char *__s2, size_t __n));
+#ifndef _STRING_H
+#define _STRING_H 1
-/* Find the first occurrence of C in S. */
-extern char *strchr __P ((__const char *__s, int __c));
-/* 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));
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* Get size_t and NULL from <stddef.h>. */
+#define __need_size_t
+#define __need_NULL
+#include <stddef.h>
-/* Basic mem functions */
/* Copy N bytes of SRC to DEST. */
-extern __ptr_t memcpy __P ((__ptr_t __restrict __dest,
- __const __ptr_t __restrict __src, size_t __n));
+extern void *memcpy (void *__restrict __dest,
+ __const void *__restrict __src, size_t __n) __THROW;
+/* 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;
+
/* 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));
+#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;
+#endif /* SVID. */
+
+
/* Set N bytes of S to C. */
-extern __ptr_t memset __P ((__ptr_t __s, int __c, size_t __n));
+extern void *memset (void *__s, int __c, size_t __n) __THROW;
+
/* 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));
+extern int memcmp (__const void *__s1, __const void *__s2, size_t __n)
+ __THROW __attribute_pure__;
+/* Search N bytes of S for C. */
+extern void *memchr (__const void *__s, int __c, size_t __n)
+ __THROW __attribute_pure__;
-/* Minimal (very!) locale support */
-extern int strcoll __P ((__const char *__s1, __const char *__s2));
-extern size_t strxfrm __P ((char *__restrict __dest,
- __const char *__restrict __src, size_t __n));
+/*#ifdef __USE_GNU*/
+#if 0
+/* 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__;
-/* BSDisms */
-extern char *index __P ((__const char *__s, int __c));
-extern char *rindex __P ((__const char *__s, int __c));
+#endif
+/* 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__;
-/* 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 __P ((int __i)) __attribute__ ((const));
-/* Other common BSD functions */
-/* Set N bytes of S to 0. */
-extern void bzero __P ((__ptr_t __s, size_t __n));
-/* 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));
+/* Copy SRC to DEST. */
+extern char *strcpy (char *__restrict __dest, __const char *__restrict __src)
+ __THROW;
+/* Copy no more than N characters of SRC to DEST. */
+extern char *strncpy (char *__restrict __dest,
+ __const char *__restrict __src, size_t __n) __THROW;
-/* Compare S1 and S2, ignoring case. */
-extern int strcasecmp __P ((__const char *__s1, __const char *__s2));
-/* 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));
-/* 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));
-extern char *strcasestr __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));
-/* Divide S into tokens separated by characters in DELIM. Information
- passed between calls are stored in SAVE_PTR. */
-extern char *__strtok_r __P ((char *__restrict __s,
- __const char *__restrict __delim,
- char **__restrict __save_ptr));
-#if defined __USE_POSIX || defined __USE_MISC
-extern char *strtok_r __P ((char *__restrict __s,
- __const char *__restrict __delim,
- char **__restrict __save_ptr));
-#endif
-/* 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));
+/* Append SRC onto DEST. */
+extern char *strcat (char *__restrict __dest, __const char *__restrict __src)
+ __THROW;
+/* Append no more than N characters from SRC onto DEST. */
+extern char *strncat (char *__restrict __dest, __const char *__restrict __src,
+ size_t __n) __THROW;
-/* Return a string describing the meaning of the signal number in SIG. */
-extern char *strsignal __P ((int __sig));
+/* Compare S1 and S2. */
+extern int strcmp (__const char *__s1, __const char *__s2)
+ __THROW __attribute_pure__;
+/* Compare N characters of S1 and S2. */
+extern int strncmp (__const char *__s1, __const char *__s2, size_t __n)
+ __THROW __attribute_pure__;
-/* More BSD compatabilty */
-int bcmp(const void *s1, const void *s2, size_t n);
+/* Compare the collated forms of S1 and S2. */
+extern int strcoll (__const char *__s1, __const char *__s2)
+ __THROW __attribute_pure__;
+/* 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;
-/* Linux silly hour */
-char *strfry __P ((char *));
+#if 0
+/*#ifdef __USE_GNU*/
+/* 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>
-/* 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 __P ((__const char *__string, size_t __maxlen));
+/* 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__;
+/* 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;
+#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__;
+#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_GNU
+extern char *strndup (__const char *__string, size_t __n)
+ __THROW __attribute_malloc__;
+#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 = __builtin_alloca (__len); \
+ char *__new = (char *) __builtin_alloca (__len); \
(char *) memcpy (__new, __old, __len); \
}))
({ \
__const char *__old = (s); \
size_t __len = strnlen (__old, (n)); \
- char *__new = __builtin_alloca (__len + 1); \
+ char *__new = (char *) __builtin_alloca (__len + 1); \
__new[__len] = '\0'; \
(char *) memcpy (__new, __old, __len); \
}))
+#endif
+/* Find the first occurrence of C in S. */
+extern char *strchr (__const char *__s, int __c) __THROW __attribute_pure__;
+/* Find the last occurrence of C in S. */
+extern char *strrchr (__const char *__s, int __c) __THROW __attribute_pure__;
+
+#if 0
+/*#ifdef __USE_GNU*/
+/* This funciton 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__;
#endif
+
+/* 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__;
+/* 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__;
+/* Find the first occurrence in S of any character in ACCEPT. */
+extern char *strpbrk (__const char *__s, __const char *__accept)
+ __THROW __attribute_pure__;
+/* Find the first occurrence of NEEDLE in HAYSTACK. */
+extern char *strstr (__const char *__haystack, __const char *__needle)
+ __THROW __attribute_pure__;
+
+#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__;
+#endif
+
+/* Divide S into tokens separated by characters in DELIM. */
+extern char *strtok (char *__restrict __s, __const char *__restrict __delim)
+ __THROW;
+
+/* Divide S into tokens separated by characters in DELIM. Information
+ passed between calls are stored in SAVE_PTR. */
+extern char *__strtok_r (char *__restrict __s,
+ __const char *__restrict __delim,
+ char **__restrict __save_ptr) __THROW;
+#if defined __USE_POSIX || defined __USE_MISC
+extern char *strtok_r (char *__restrict __s, __const char *__restrict __delim,
+ char **__restrict __save_ptr) __THROW;
+#endif
+
+#ifdef __USE_GNU
+#if 0
+/* 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__;
+#endif
+
+/* Copy N bytes of SRC to DEST, return pointer to bytes after the
+ last written byte. */
+extern void *__mempcpy (void *__restrict __dest,
+ __const void *__restrict __src, size_t __n) __THROW;
+extern void *mempcpy (void *__restrict __dest,
+ __const void *__restrict __src, size_t __n) __THROW;
+#endif
+
+
+/* Return the length of S. */
+extern size_t strlen (__const char *__s) __THROW __attribute_pure__;
+
+#ifdef __USE_GNU
+/* 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__;
+#endif
+
+
+/* Return a string describing the meaning of the `errno' code in ERRNUM. */
+extern char *strerror (int __errnum) __THROW;
+#ifdef __USE_MISC
+/* Reentrant version of `strerror'. If a temporary buffer is required, at
+ most BUFLEN bytes of BUF will be used. */
+extern char *strerror_r (int __errnum, char *__buf, size_t __buflen) __THROW;
+#endif
+
+/* We define this function always since `bzero' is sometimes needed when
+ the namespace rules does not allow this. */
+extern void __bzero (void *__s, size_t __n) __THROW;
+
+#if defined __USE_BSD
+/* Copy N bytes of SRC to DEST (like memmove, but args reversed). */
+extern void bcopy (__const void *__src, void *__dest, size_t __n) __THROW;
+
+/* Set N bytes of S to 0. */
+extern void bzero (void *__s, size_t __n) __THROW;
+
+/* 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__;
+
+/* Find the first occurrence of C in S (same as strchr). */
+extern char *index (__const char *__s, int __c) __THROW __attribute_pure__;
+
+/* Find the last occurrence of C in S (same as strrchr). */
+extern char *rindex (__const char *__s, int __c) __THROW __attribute_pure__;
+
+/* 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__));
+
+/* The following two functions are non-standard but necessary for non-32 bit
+ platforms. */
+# if 0
+/*# 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 (__const char *__s1, __const char *__s2)
+ __THROW __attribute_pure__;
+
+/* Compare no more than N chars of S1 and S2, ignoring case. */
+extern int strncasecmp (__const char *__s1, __const char *__s2, size_t __n)
+ __THROW __attribute_pure__;
+#endif /* Use BSD. */
+
+#if 0
+/*#ifdef __USE_GNU*/
+/* 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__;
+
+extern int __strncasecmp_l (__const char *__s1, __const char *__s2,
+ size_t __n, __locale_t __loc)
+ __THROW __attribute_pure__;
+#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 (char **__restrict __stringp,
+ __const char *__restrict __delim) __THROW;
+#endif
+
+#ifdef __USE_GNU
+#if 0
+/* Compare S1 and S2 as strings holding name & indices/version numbers. */
+extern int strverscmp (__const char *__s1, __const char *__s2)
+ __THROW __attribute_pure__;
+#endif
+
+/* Return a string describing the meaning of the signal number in SIG. */
+extern char *strsignal (int __sig) __THROW;
+
+/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
+extern char *__stpcpy (char *__restrict __dest, __const char *__restrict __src)
+ __THROW;
+extern char *stpcpy (char *__restrict __dest, __const char *__restrict __src)
+ __THROW;
+
+/* Copy no more than N characters of SRC to DEST, returning the address of
+ the last character written into DEST. */
+extern char *__stpncpy (char *__restrict __dest,
+ __const char *__restrict __src, size_t __n) __THROW;
+extern char *stpncpy (char *__restrict __dest,
+ __const char *__restrict __src, size_t __n) __THROW;
+
+#if 0
+/* Sautee STRING briskly. */
+extern char *strfry (char *__string) __THROW;
+
+/* Frobnicate N bytes of S. */
+extern void *memfrob (void *__s, size_t __n) __THROW;
+#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;
+# endif
+#endif
+
+#if 0
+#if defined __GNUC__ && __GNUC__ >= 2
+# if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__ \
+ && !defined __NO_INLINE__ && !defined __cplusplus
+/* When using GNU CC we provide some optimized versions of selected
+ functions from this header. There are two kinds of optimizations:
+
+ - machine-dependent optimizations, most probably using inline
+ assembler code; these might be quite expensive since the code
+ size can increase significantly.
+ These optimizations are not used unless the symbol
+ __USE_STRING_INLINES
+ is defined before including this header.
+
+ - machine-independent optimizations which do not increase the
+ code size significantly and which optimize mainly situations
+ where one or more arguments are compile-time constants.
+ These optimizations are used always when the compiler is
+ taught to optimize.
+
+ One can inhibit all optimizations by defining __NO_STRING_INLINES. */
+
+/* Get the machine-dependent optimizations (if any). */
+# include <bits/string.h>
+
+/* These are generic optimizations which do not add too much inline code. */
+# include <bits/string2.h>
+# endif
+#endif
+#endif
+
+__END_DECLS
+
+#endif /* string.h */
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