Copyright (c) 1983, 1993
The Regents of the University of California. All rights reserved.

%sccs.include.proprietary.roff%

@(#)index.3 8.1 (Berkeley) 06/05/93

C 5 index, rindex, lnblnk, len - tell about character objects (intrinsic) function index (string, substr)

character*(*) string, substr integer function rindex (string, substr)

character*(*) string, substr function lnblnk (string)

character*(*) string (intrinsic) function len (string)

character*(*) string

Index (rindex) returns the index of the first (last) occurrence of the substring substr in string, or zero if it does not occur. Index is an f77 intrinsic function; rindex is a library routine.

Lnblnk returns the index of the last non-blank character in string. This is useful since all f77 character objects are fixed length, blank padded. Intrinsic function len returns the size of the character object argument.