INDEX(3)						     Linux Programmer's Manual							  INDEX(3)

NAME

       index, rindex - locate character in string

SYNOPSIS

       #include <strings.h>

       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 ('') 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 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2015-03-02								  INDEX(3)