#ifndef __STRING_H #define __STRING_H #include <features.h> #include <sys/types.h> #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)); /* Copy SRC to DEST. */ extern char *strcpy __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)); /* 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)); /* 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)); /* 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)); /* 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)); /* 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)); /* BSDisms */ extern char *index __P ((__const char *__s, int __c)); extern char *rindex __P ((__const char *__s, int __c)); /* 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)); /* 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)); /* 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)); /* Return a string describing the meaning of the signal number in SIG. */ extern char *strsignal __P ((int __sig)); /* More BSD compatabilty */ int bcmp(const void *s1, const void *s2, size_t n); /* Linux silly hour */ char *strfry __P ((char *)); /* 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)); /* 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 *) 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 = __builtin_alloca (__len + 1); \ __new[__len] = '\0'; \ (char *) memcpy (__new, __old, __len); \ })) #endif