The TDIFF component -does not work in 64 bit compiled app

[rudy999 2]

I had the requirement to compare to two text files (via Tmemo) and found the TDIFF component that worked exactly as I wanted. win32 app.

I just set the application to compile as a win64 bit app and the results were 'wrong'. (As verified with Notepad++ compare). No crash, no warning, just different results.

 

I am guessing the optimizations within the TDIFF unit and pointer use do not work in 64 bit target platform.

Description:      Component to list differences between two integer arrays   *
*                   using a "longest common subsequence" algorithm.            *
*                   Typically, this component is used to diff 2 text files     *
*                   once their individuals lines have been hashed.     *

 

I could not find another Component in JVCL - any alternatives out there?

 

Thank you in advance

[Guest]

have seen this Github repository:  https://github.com/rickard67/TextDiff

Text compare component for Delphi and Free Pascal

• Component TDiff *
• * Version: 5.02 *
• * Date: 23 May 2020 *
• * Compilers: Delphi 10.x *
• * Author: Angus Johnson - angusj-AT-myrealbox-DOT-com *
• * Copyright: © 2001-2009 Angus Johnson *
• * Updated by: Rickard Johansson (RJ TextEd)

 

hug

Edited February 12, 2021 by Guest

[rudy999 2]

Thank you !

I was able to download the GITHUB TDIFF and got the app working with identical results in Win32 or Win64.

 

I may have an incorrect setup but I had to add Winapi.Windows to the HashUnit (DWORD was not defined?)

to compile properly.

 

regards all

[David Heffernan 2300]

This is something that crops up over and again. Always get third party libraries from their main repos, and make sure you are up to date.