Best layout: Brian Westley Merlyn LeRoy (Brian Westley) Rosemount, Inc. 1121 Hamline Ave. N. #17 St. Paul, MN 55108 U.S.A. Compile and execute without arguments. Note: Your compiler must parse #define _ -a -_ as "--a" and not "-(-a)" or some other tokenized form. Some strictly conforming ANSI C Preprocessors may object to this. You might enjoy looking at the output of: cc -E westley.c Copyright (c) 1988, Landon Curt Noll & Larry Bassel. All Rights Reserved. Permission for personal, educational or non-profit use is granted provided this this copyright and notice are included in its entirety and remains unaltered. All other uses must receive prior permission in writing from both Landon Curt Noll and Larry Bassel.