INDEX
Section: Linux Programmer's Manual (3)
Updated: 2019-03-06
Page Index
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 ('\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
strrchr(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 5.10 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/.