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¶
Multithreading (see pthreads(7))¶
The
index() and
rindex() functions are thread-safe.
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 3.74 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
http://www.kernel.org/doc/man-pages/.
