Solved

read an old file

Posted on 1999-01-25
8
128 Views
Last Modified: 2010-04-06
i try to read an old data file containing records with the same structure (strings, integers, user types, reals, ...) created with a tpw-program. i can read all this values but reals partially only. i thought the real of tpw and d3 is even the same!
what should i do?
0
Comment
Question by:Saxon
  • 3
  • 2
  • 2
  • +1
8 Comments
 
LVL 3

Expert Comment

by:KE
ID: 1363284
I don't know for D3 - in D4 there's a special Real48 type to deal with old style 6 byte reals.

0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 1363285
Hi Saxon,

the real-typ is the same as in the whole pascal family from Borland.
Try other types (single, double, extended...).

How shows the partially real?
Maybe you should use the compiler-directive {$A-}, or otherwise, if A-.
Maybe you should use the keyword packed in your recorddefinition, or otherwise, if packed.

meikl

0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 1363286
Hi Saxon, Hi KE,

      the real-typ is the same as in the whole pascal family from Borland.

except D4 i see.

meikl
0
Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

 
LVL 12

Expert Comment

by:rwilson032697
ID: 1363287
Yup - Borland toasted the real type in D4, you will need to use some code to convert between the real type and IEEE double.

I can provide this if you like.

Raymond.

0
 

Author Comment

by:Saxon
ID: 1363288
partially means that i get 0 or values like -6.89764587638756e-18
i´ll try $A and packed
sorry for delay
0
 

Author Comment

by:Saxon
ID: 1363289
it´s working now! i changed my d3 record to packed and the sun grews up!
kretzschmar should receive the points!
Ich danke Dir!
Lutz
0
 
LVL 27

Accepted Solution

by:
kretzschmar earned 50 total points
ID: 1363290
Hi Lutz,

ich freue mich, daß ich dir helfen konnte.
In diesem Sinne wünsche ich dir für die Zukunft viel Spaß und möglichst wenig Probleme beim Programmieren mit Delphi.

meikl :-)
0
 
LVL 12

Expert Comment

by:rwilson032697
ID: 1363291
Hey, my German must be improving - I understood most of that!
0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

In this tutorial I will show you how to use the Windows Speech API in Delphi. I will only cover basic functions such as text to speech and controlling the speed of the speech. SAPI Installation First you need to install the SAPI type library, th…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question