NAME
index, rindex - locate character in string SYNOPSIS
#include
char *index(const char *s, int c); char *rindex(const char *s, int c); DESCRIPTION The 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 VALUE The index() and rindex() functions return a pointer to the matched character or NULL if the character is not found. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌──────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├──────────────────┼───────────────┼─────────┤ │index(), rindex() │ Thread safety │ MT-Safe │ └──────────────────┴───────────────┴─────────┘ CONFORMING TO
4.3BSD; marked as LEGACY in POSIX.1-2001. POSIX.1-2008 removes the specifications of index() and rindex(), recommending strchr(3) and str‐ rchr(3) instead. SEE ALSO memchr(3), strchr(3), string(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3) COLOPHON
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2011-09-21 INDEX(3)