June 4, 1993 RINDEX 3

### NAME

rindex - locate character in string

### LIBRARY

Standard C Library (libc, -lc)

### SYNOPSIS

```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 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`.