rindex() -- String Function (libc)

Find rightmost occurrence of a character in a string
#include <string.h>
char *rindex(string, c) char *string; char c;

rindex()  scans string  for the  last occurrence  of character  c. If  c is
found, rindex()  returns a  pointer to  it.  If it  is not  found, rindex()
returns NULL.

Example

This example  uses rindex() to  help strip a  sample file name  of the path
information.

#include <stdio.h>
#include <string.h>
#include <misc.h>
#define PATHSEP '/' /* path name separator */

main()
{
    char *testpath = "/foo/bar/baz";
    printf("Before massaging: %s\n", testpath);
    printf("After massaging: %s\n", basename(testpath));
    return(EXIT_SUCCESS);
}

char *basename(path)
char *path;
{
    char *cp;
    return (((cp = rindex(path, PATHSEP)) == NULL)
                     ? path : ++cp);
}

See Also

libc,
strchr(),
strrchr(),
string.h

Notes

You must include header file string.h in any program that uses rindex(), or
that program will not link correctly.

rindex() is now obsolete.  You should use strrchr() instead.

© 2012 by Stephen A. Ness