diffint program

• By downloading this code you agree to the Source Code Use License (PDF).

• Pascal source code: diffint.p (wget instructions)
• Instructions on compiling
• MacOS binary: diffint
• Alphabetic List of Delila Programs
• Delila Programs by Most Recent Update
• Please report broken links
• delilabundle.zip = All Programs and MacOS Binaries
• Copyright Statement for Delila Programs

Documentation for the diffint program is below, with links to related programs in the "see also" section.

{   version = 1.12; (* of diffint.p 2022 Oct 29}

(* begin module describe.diffint *)
(*
name
   diffint: differences between integers

synopsis
   diffint(input: in, output: out);

files
   input: a set of integers, one per line.

   output: the difference between each integer and the previous one.

describe

   Difference between each integer in input and the
   previous one is given to the output.

documentation

see also

   Program that allows selection of columns and ranges of differences
    to be selected: diffintcut.p

author

   Thomas Dana Schneider

bugs

technical notes

   The program originally acted as if the integer before the first one
   is zero, but this creates artifacts.  The initial data point is now
   dropped.  However, data often comes separate into chunks.  This is
   marked by the comments.  So the program resets everytime there is a
   comment line.

   The name was changed to diffint (from difint) because that's
   closer to the Unix diff command.

   The program used to allow:

   "Lines that begin with an asterisk ('*') are first copied to the
   output."
   and
   'Lines that begin with "*" are ignored.'
   This is no longer true.

bugs
   DO NOT GIVE NON-INTEGERS TO THE CODE.
   If you do, it may give you strange differences.
   The code only checks for non-integers in the first character
   of each line.

*)
(* end module describe.diffint *)
{This manual page was created by makman 1.45}