diff options
Diffstat (limited to 'string')
| -rw-r--r-- | string/string.h | 73 |
1 files changed, 44 insertions, 29 deletions
diff --git a/string/string.h b/string/string.h index d481e3fd3d..8b9a35784f 100644 --- a/string/string.h +++ b/string/string.h @@ -55,18 +55,20 @@ extern void *memset (void *__s, int __c, size_t __n) __THROW; /* Compare N bytes of S1 and S2. */ extern int memcmp (__const void *__s1, __const void *__s2, size_t __n) - __THROW; + __THROW __attribute_pure__; /* Search N bytes of S for C. */ -extern void *memchr (__const void *__s, int __c, size_t __n) __THROW; +extern void *memchr (__const void *__s, int __c, size_t __n) + __THROW __attribute_pure__; #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; +extern void *rawmemchr (__const void *__s, int __c) __THROW __attribute_pure__; /* Search N bytes of S for the final occurrence of C. */ -extern void *memrchr (__const void *__s, int __c, size_t __n) __THROW; +extern void *memrchr (__const void *__s, int __c, size_t __n) + __THROW __attribute_pure__; #endif @@ -85,13 +87,15 @@ extern char *strncat (char *__restrict __dest, __const char *__restrict __src, size_t __n) __THROW; /* Compare S1 and S2. */ -extern int strcmp (__const char *__s1, __const char *__s2) __THROW; +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; + __THROW __attribute_pure__; /* Compare the collated forms of S1 and S2. */ -extern int strcoll (__const char *__s1, __const char *__s2) __THROW; +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; @@ -104,7 +108,7 @@ extern size_t strxfrm (char *__restrict __dest, /* 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; + __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; @@ -148,33 +152,37 @@ extern char *strndup (__const char *__string, size_t __n) #endif /* Find the first occurrence of C in S. */ -extern char *strchr (__const char *__s, int __c) __THROW; +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; +extern char *strrchr (__const char *__s, int __c) __THROW __attribute_pure__; #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; +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; +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; +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; +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; +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; + __THROW __attribute_pure__; extern char *strcasestr (__const char *__haystack, __const char *__needle) - __THROW; + __THROW __attribute_pure__; #endif /* Divide S into tokens separated by characters in DELIM. */ @@ -196,7 +204,8 @@ extern char *strtok_r (char *__restrict __s, __const char *__restrict __delim, 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; + __const void *__needle, size_t __needlelen) + __THROW __attribute_pure__; /* Copy N bytes of SRC to DEST, return pointer to bytes after the last written byte. */ @@ -208,12 +217,13 @@ extern void *mempcpy (void *__restrict __dest, /* Return the length of S. */ -extern size_t strlen (__const char *__s) __THROW; +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; +extern size_t strnlen (__const char *__string, size_t __maxlen) + __THROW __attribute_pure__; #endif @@ -238,13 +248,14 @@ extern void bcopy (__const void *__src, void *__dest, size_t __n) __THROW; 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; +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; +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; +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. */ @@ -262,22 +273,25 @@ __extension__ extern int ffsll (long long int __ll) # endif /* Compare S1 and S2, ignoring case. */ -extern int __strcasecmp (__const char *__s1, __const char *__s2) __THROW; -extern int strcasecmp (__const char *__s1, __const char *__s2) __THROW; +extern int __strcasecmp (__const char *__s1, __const char *__s2) + __THROW __attribute_pure__; +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; + __THROW __attribute_pure__; #endif /* Use BSD. */ #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; + __locale_t __loc) __THROW __attribute_pure__; extern int __strncasecmp_l (__const char *__s1, __const char *__s2, - size_t __n, __locale_t __loc) __THROW; + size_t __n, __locale_t __loc) + __THROW __attribute_pure__; #endif #ifdef __USE_BSD @@ -289,7 +303,8 @@ extern char *strsep (char **__restrict __stringp, #ifdef __USE_GNU /* Compare S1 and S2 as strings holding name & indices/version numbers. */ -extern int strverscmp (__const char *__s1, __const char *__s2) __THROW; +extern int strverscmp (__const char *__s1, __const char *__s2) + __THROW __attribute_pure__; /* Return a string describing the meaning of the signal number in SIG. */ extern char *strsignal (int __sig) __THROW; |