char *index(const char *s, int c);
char *rindex(const char *s, int c);
DESCRIPTIONThe index() function returns a pointer to the first occurrence of the character c in the string s.
The rindex() function returns a pointer to the last occurrence of the character c in the string s.
The terminating null byte ('\0') is considered to be a part of the strings.
RETURN VALUEThe index() and rindex() functions return a pointer to the matched character or NULL if the character is not found.
ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7).
|index(), rindex()||Thread safety||MT-Safe|
CONFORMING TO4.3BSD; marked as LEGACY in POSIX.1-2001. POSIX.1-2008 removes the specifications of index() and rindex(), recommending strchr(3) and strrchr(3) instead.
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