Re: Understanding {$I-} {$I+} ioResult
"Prof. A Olowofoyeku (The African Chief)" <[email protected]>
| Newsgroups | gmane.comp.compilers.gpc |
|---|---|
| Message-ID | <[email protected]> |
On 26 Nov 2012 at 9:10, Baudouin Le Charlier wrote: [...] > > This is a historical factor, and there was no need to duplicate > > features that Borland already documented well, and which were well > > known to Borland Pascal/Delphi programmers. > > I am not sure they are so well known since you did not explain to me > why (i.e. by which miracle) a program that stops abruptly (when > compiled with $I-), stops normally if you add a call to ioResult > *after* the io statement that makes the original program fail. I doubt > very much that this could be explained in the original Borland > documentation and also that this behavior should be well known of > Borland Pascal programmers. As I said, the Borland Pascal/Delphi help files are freely available on the net. If you want to use Borland Pascal/Delphi compatibility features in GPC, you would do well to study the Borland documentation on those features. This is from a 20 year old Borland Turbo Pascal help file: [--- excerpt begins ---] $I: Input/Output-Checking Switch Enables or disables the automatic code generation that checks the result of a call to an I/O procedure Syntax: $I+ or $I- Default: $I+ Type: Local Command-Line: /$I+ or /$I- Menu Command: Options|Compiler|I/O Checking Remarks If an I/O procedure returns a non-zero I/O result when the $I switch is on, the program terminates, displaying a run-time error message. When the $I switch is off, you must use the IOResult function to check for I/O errors. [--- excerpt ends ---] Please let us stop this meaningless debate now. You would be far better off studying the Borland documentation. Should you think that this documentation really needs to be reproduced in the GPC documentation, please feel free to contribute the required documentation. Best regards, The Chief ------- Prof. Abimbola Olowofoyeku (The African Chief) Web: http://www.greatchief.plus.com _______________________________________________ Gpc mailing list [email protected] https://www.g-n-u.de/mailman/listinfo/gpc