#ifndef _STRING_H #include extern void *__memccpy (void *__dest, __const void *__src, int __c, size_t __n); extern size_t __strnlen (__const char *__string, size_t __maxlen) __attribute_pure__; extern char *__strsep (char **__stringp, __const char *__delim); extern int __strverscmp (__const char *__s1, __const char *__s2) __attribute_pure__; extern int __strncasecmp (__const char *__s1, __const char *__s2, size_t __n) __attribute_pure__; extern int __strcasecmp (__const char *__s1, __const char *__s2) __attribute_pure__; extern char *__strcasestr (__const char *__haystack, __const char *__needle) __attribute_pure__; extern char *__strdup (__const char *__string) __attribute_malloc__; extern char *__strndup (__const char *__string, size_t __n) __attribute_malloc__; extern void *__rawmemchr (__const void *__s, int __c) __attribute_pure__; extern char *__strchrnul (__const char *__s, int __c) __attribute_pure__; extern void *__memrchr (__const void *__s, int __c, size_t __n) __attribute_pure__; extern void *__memchr (__const void *__s, int __c, size_t __n) __attribute_pure__; extern int __ffs (int __i) __attribute__ ((const)); extern char *__strerror_r (int __errnum, char *__buf, size_t __buflen); /* Now the real definitions. We do this here since some of the functions above are defined as macros in the headers. */ #include /* Alternative version which doesn't pollute glibc's namespace. */ #undef strndupa #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