Modify one character in a string

Marc 'BlackJack' Rintsch bj_666 at
Sat May 27 00:21:58 CEST 2006

In <roy-F85321.10044225052006 at>, Roy Smith wrote:

>> Also, how do I do this when dealing with a file ; which file mode
>> should I use and what function should I use to modify a single
>> character once in that file mode?
> This is a much more complicated question, because it depends on the details 
> of the operating system you're using.  On Unix, you can seek to a specific 
> place in a file, write a single character, seek to EOF, and you've done an 
> in-place single character edit of the file.

Why seeking to EOF after writing the byte?

	Marc 'BlackJack' Rintsch

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