RINDEX(3) BSD Library Functions Manual RINDEX(3)NAMErindex — locate character in string
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <strings.h>
char *
rindex(const char *s, int c);
DESCRIPTION
The rindex() function locates the last character matching c (converted to
a char) in the nul-terminated string s.
RETURN VALUES
A pointer to the character is returned if it is found; otherwise NULL is
returned. If c is ‘\0’, rindex() locates the terminating ‘\0’.
SEE ALSOindex(3), memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3),
strsep(3), strspn(3), strstr(3), strtok(3)STANDARDS
The rindex() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”). The
IEEE Std 1003.1-2004 (“POSIX.1”) revision marked it as legacy and recom‐
mended the use of strrchr(3) instead. The IEEE Std 1003.1-2008
(“POSIX.1”) revision removed rindex() from the specification.
HISTORY
A rindex() function appeared in Version 6 AT&T UNIX.
BSD April 29, 2010 BSD