Solved

Does Delphi 2006 have an unsigned 64bit int?

Posted on 2006-11-07
2
1,386 Views
Last Modified: 2008-02-01
Is there a UInt64 or an ULongLong in version '06?

I've been using Delphi 6 and am considering an upgrade if this data type is supported.

Thanks.

m.
0
Comment
Question by:mugman21
2 Comments
 
LVL 17

Accepted Solution

by:
Wim ten Brink earned 75 total points
ID: 17900812
Haven't found it in the helpfiles of D2006 so the answer is "No". But do you really need an unsigned 64-bits numeric type? Because that would be a real huge number.
0
 
LVL 1

Assisted Solution

by:mavrj
mavrj earned 50 total points
ID: 17964879
There is not unsigned Int64 in Delphi

http://www.delphibasics.co.uk/RTL.asp?Name=Int64

If you HAVE to deal with unsigned Int64 you can still manage complex in-memory operation by casting Int64 to byte/word/dword array and perform your operation on a byte/word/dword basis with basic operation and carryover. This would yield to poor code as it would not benefit from compilation optimization that may append on Int64.

Finally you can look at MMX qword instruction to perform your task. You would then need to code your function in assembler. I've tried to do so with delphi 2005 but it couldn't support the MMX assembler instructions so I hat to code the small part of code in HEX. That was really painful!

Hope that helps!

Yvan
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Objective: - This article will help user in how to convert their numeric value become words. How to use 1. You can copy this code in your Unit as function 2. than you can perform your function by type this code The Code   (CODE) The Im…
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
This tutorial demonstrates a quick way of adding group price to multiple Magento products.
This is a video describing the growing solar energy use in Utah. This is a topic that greatly interests me and so I decided to produce a video about it.

929 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

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now