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- From: Thomas Binder (Gryf) <binder@rbg.informatik.th-darmstadt.de>
- Subject: Probs with MiNTLib
- Date: Wed, 9 Mar 94 13:29:35 MEZ
- Return-Receipt-To: binder@rbg.informatik.th-darmstadt.de
- Mailer: Elm [revision: 66.25]
-
- Hi all!
-
- As I played around with the MiNTLibs (PL 42, but the diffs to 43 and 44 show
- no differences in the files concerning my problems) I recognized two things:
-
- - scanf doesn't work properly with plain TOS
- - on TOS 4.01 stderr won't work
-
- The first problem is due to the function _read (in read.c). Fread (which is
- called in there) doesn't add the linefeed/cr to the buffer when the user
- completed the input by pressing return. So scanf still waits for the whitespace
- to end the input line, and you have to press return twice.
- As said before, this only happens *without* MiNT running. I solved the problem
- by always adding a linefeed to the buffer when MiNT is not running and the
- file read from is a tty. Is that OK?
-
- The second problem is due to an error(?) in the Falcon-TOS: Fforce(2, -1)
- returns EINHNDL, so anything written to stderr never appears on the screen.
- As far as I know, this Fforce-call was documented by ATARI, so I wondered why
- it didn't work. I then tried calling Fopen("CON:", 2) and *suprise*: I get
- handle 6, instead of -1 (as said in the german 'Profibuch'). So one solution
- (useable for all TOS-versions) would be calling Fforce(2, Fdup(1)), but since
- Fdup has some severe problems, I didn't use this way. Instead, I tried calling
- Fforce(2, Fopen("CON:", 2)), this works very nice. On old TOSes, the Fopen-
- call returns -1, on newer ones 6 (or higher), and Fforce will work again. The
- only disadvantage of this method is the the handle returned by the Fopen-call
- has to be closed (if it is >= 6), but that can easily be done in function
- exit. What do you think about that?
-
-
- If this suggestions are useable, I'll post the diffs later (could take some
- time).
-
-
- Ciao
-
- Thomas
-
-
- --
- /----------------------------------------------------------------------------\
- | Thomas Binder (IRCNick: Gryf) | "It all seems so stupid, it |
- | Hauptstrasse 43b | makes me want to give up, |
- | 61169 Friedberg | but why should I give up, |
- | Germany | when it all seems so |
- | Email: binder@rbg.informatik.th-darmstadt.de | stupid?" M. L. Gore |
- |----------------------------------------------------------------------------|
- | Auf frischer Tat ertappt - Dunkelheit bei Einbruch verhaftet! |
- \----------------------------------------------------------------------------/
-