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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /string/string.h
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initial import
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+/* Copyright (C) 1991, 1992, 1993 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+/*
+ * ANSI Standard: 4.11 STRING HANDLING <string.h>
+ */
+
+#ifndef _STRING_H
+
+#define _STRING_H 1
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* Get size_t and NULL from <stddef.h>. */
+#define __need_size_t
+#define __need_NULL
+#include <stddef.h>
+
+
+/* Copy N bytes of SRC to DEST. */
+extern __ptr_t memcpy __P ((__ptr_t __dest, __const __ptr_t __src,
+ 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));
+
+/* 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));
+#if defined (__USE_SVID) || defined (__USE_BSD)
+extern __ptr_t memccpy __P ((__ptr_t __dest, __const __ptr_t __src,
+ int __c, size_t __n));
+#ifdef __OPTIMIZE__
+#define memccpy(dest, src, c, n) __memccpy((dest), (src), (c), (n))
+#endif /* Optimizing. */
+#endif /* SVID. */
+
+
+/* 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));
+
+/* Search N bytes of S for C. */
+extern __ptr_t memchr __P ((__const __ptr_t __s, int __c, size_t __n));
+
+
+/* Copy SRC to DEST. */
+extern char *strcpy __P ((char *__dest, __const char *__src));
+/* Copy no more than N characters of SRC to DEST. */
+extern char *strncpy __P ((char *__dest, __const char *__src, size_t __n));
+
+/* Append SRC onto DEST. */
+extern char *strcat __P ((char *__dest, __const char *__src));
+/* Append no more than N characters from SRC onto DEST. */
+extern char *strncat __P ((char *__dest, __const char *__src, size_t __n));
+
+/* 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));
+
+/* Compare the collated forms of S1 and S2. */
+extern int strcoll __P ((__const char *__s1, __const char *__s2));
+/* Put a transformation of SRC into no more than N bytes of DEST. */
+extern size_t strxfrm __P ((char *__dest, __const char *__src, size_t __n));
+
+#if defined (__USE_SVID) || defined (__USE_BSD)
+/* Duplicate S, returning an identical malloc'd string. */
+extern char *strdup __P ((__const char *__s));
+#endif
+
+/* 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));
+
+/* 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));
+/* Find the first occurence in S of any character in ACCEPT. */
+extern char *strpbrk __P ((__const char *__s, __const char *__accept));
+/* Find the first occurence 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 *__s, __const char *__delim));
+
+#ifdef __USE_GNU
+/* Find the first occurence of NEEDLE in HAYSTACK.
+ NEEDLE is NEEDLELEN bytes long;
+ HAYSTACK is HAYSTACKLEN bytes long. */
+extern __ptr_t memmem __P ((__const __ptr_t __haystack, size_t __haystacklen,
+ __const __ptr_t __needle, size_t __needlelen));
+#endif
+
+/* Return the length of S. */
+extern size_t strlen __P ((__const char *__s));
+
+/* Return a string describing the meaning of the errno code in ERRNUM. */
+extern char *strerror __P ((int __errnum));
+
+#ifdef __USE_BSD
+/* Find the first occurrence of C in S (same as strchr). */
+extern char *index __P ((__const char *__s, int __c));
+
+/* Find the last occurrence of C in S (same as strrchr). */
+extern char *rindex __P ((__const char *__s, int __c));
+
+/* 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));
+
+/* Set N bytes of S to 0. */
+extern void bzero __P ((__ptr_t __s, size_t __n));
+
+/* Compare N bytes of S1 and S2 (same as memcmp). */
+extern int bcmp __P ((__const __ptr_t __s1, __const __ptr_t __s2, size_t __n));
+
+/* 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));
+
+/* Compare S1 and S2, ignoring case. */
+extern int strcasecmp __P ((__const char *__s1, __const char *__s2));
+
+/* 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 **__stringp, __const char *__delim));
+#endif
+
+/* Copy no more than N characters of SRC to DEST, returning the address of
+ the last character written into DEST. */
+extern char *__stpncpy __P ((char *__dest, __const char *__src, size_t __n));
+
+#ifdef __USE_GNU
+/* 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));
+
+/* Return a string describing the meaning of the signal number in SIG. */
+extern char *strsignal __P ((int __sig));
+
+/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
+extern char *stpcpy __P ((char *__dest, __const char *__src));
+
+/* Copy no more than N characters of SRC to DEST, returning the address of
+ the last character written into DEST. */
+extern char *stpncpy __P ((char *__dest, __const char *__src, size_t __n));
+
+#ifdef __OPTIMIZE__
+#define stpncpy(dest, src, n) __stpncpy ((dest), (src), (n))
+#endif
+
+/* Sautee STRING briskly. */
+extern char *strfry __P ((char *__string));
+
+/* Frobnicate N bytes of S. */
+extern __ptr_t memfrob __P ((__ptr_t __s, size_t __n));
+#endif
+
+__END_DECLS
+
+#endif /* string.h */