On Wednesday 19 March 2003 16:39, you wrote: > Anton Tichawa wrote: > > Well, safety is still important. You should use the returned count in > > your procedure to be on the safe soide. The end might come sooner than > > expected. > > Right now I terminate the program if all data can not be read in one go and > I have not have any problems with it. However you are completely right that > I should use the returned count, the problem is that I don't know how to > tell blockread to start from somewhere within my buffer-array and from the > start. Of course I could just copy the buffer-content to another array, but > this seems awful clumpsy. >
Please post the data declarations (e. g. var Count: Integer; const MAX_BUFFER_SIZE = .. etc.). Normally, an index starts from 0 upwards, e. g. if you had: const MAX_BUFFER_SIZE = 8; then index runs from 0 up to 7. When you want to access the first array entry, you use index 0; when you want to access the nth entry (e. g. n = 4), you use index n - 1 (e. g. 4 - 1 = 3). This direct indexing when writing to or reading from the buffer will save resources, such as cpu time, memory, power, ..; and it makes your program overall faster. It might increase safety, too, because copying too many times by itself might be erroneous due to hardware failures. Anton Tichawa. ---------- "Adas Methode war, wie sich zeigen wird, Tagträume in offenbar korrekte Berechnungen einzuweben." Doris Langley Moore: Ada, Countess of Lovelace (London 1977). ---------- Anton Tichawa Volkertstrasse 19 / 20 A-1020 Wien mobil: +43 664 52 07 907 email: [EMAIL PROTECTED] ---------- _______________________________________________ fpc-pascal maillist - [EMAIL PROTECTED] http://lists.freepascal.org/mailman/listinfo/fpc-pascal
