Path: utzoo!attcan!uunet!samsung!usc!apple!anderson
From: anderson@Apple.COM (Clark Anderson)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Read/Write data
Keywords: read data from files
Message-ID: <44910@apple.Apple.COM>
Date: 18 Sep 90 02:33:47 GMT
References: <13768@hydra.gatech.EDU>
Organization: Apple Computer Inc., Cupertino, CA
Lines: 26




From: gt4586c@prism.gatech.EDU (WILLETT,THOMAS CARTER):
>A great I/O question:  why is it that i can write data out to a file
>using WRITELN much, much faster than i can read it back in using READLN?
>Would it be better to be using FSRead and FSWrite when writing data to
>a textfile?

It all depends on how Symantec implemented the READLN and WRITELN procedures.
Reading from a file means maintaining a buffer, handling end-of file
conditions, etc. Writing to a file is usually just doing a FSWrite to it.
There is a little bit more to be done, but not a whole lot.

Doing FSRead/Write yourself is more direct. Also, you can write to any directory
you like, whereas READLN and WRITELN limit you to the directory that your
application or project is in.
                                          --clark
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Clark Anderson                InterNet:  anderson@apple.com
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"I speak only for myself, much to my employer's relief..."
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