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Code Diff

Posted on 2003-12-10
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Last Modified: 2011-09-20
Hello

How can I create a code-diff?
I will see the differences between two files:
-identic lines
-changed lines
-added lines
-deleted lines
I need an algorithm or a program code to do this


bye
Ramoni
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Question by:Ramoni
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7 Comments
 
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Expert Comment

by:diarmaid
ID: 9912595
I not sure exactly what your looking for.
You can use 'FC' from the command line to compare txt (code) files
usage FC file1 file2, use fc /? to get a full list of options
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Author Comment

by:Ramoni
ID: 9918682
i dont know how the fc command works, but can i take it for arrays of string or only strings (with Cr)? and whats the return value of the function?

exactly im looking for a compare meachanism to compare two arrays of strings -line for line.
I want to show the differences of the two arrays:
deleted, added and changed lines.
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LVL 2

Expert Comment

by:diarmaid
ID: 9919282
You use FC to compare two files
Just open the (dos) command prompt and type in FC FILENAME1 FILENAME2 and it returns the differences.

To compare two arrays of strings, you will have to write a function to do it. Are the arrays going to be fixed size single dimension or  multi dimension arrays or are they goin to be dynamic.
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Author Comment

by:Ramoni
ID: 9919556
Thats my problem: how to write a function to compare the arrays.
I have two single dimension arrays, each array element for one line -> you can also create a "long" string with all elements of one array, and then compare the two strings.
I need a algorithm to compare..., within you can detect identic, deleted, added and changed lines.
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Accepted Solution

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Dang123 earned 40 total points
ID: 9920463
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Expert Comment

by:planocz
ID: 10260559
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:
No response from Ramoni from 12/11/2003 comment
Award points to Dang123 is recommend.
Please leave any comments here within the next seven days.
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!

planocz
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