NAME
rindex – 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 null-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 ALSO
index(3), memchr(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3)
HISTORY
A rindex() function appeared in Version 6 AT&T UNIX. Its prototype existed previously in ⟨string.h⟩ before it was moved to ⟨strings.h⟩ for IEEE Std 1003.1-2001 (“POSIX.1”) compliance.