Rudy Velthuis

Current status: "{actor} updated blog post community.embarcadero.com/write-blog-post" - 1 year ago
Member since: Friday, 21 March 2014
Last login: 2 weeks ago
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Note that JonesForth is a terribly incomplete and non-standard implementation of Forth, even at a basic level. I also dabbled with writing a Forth in 386 asm, and started with JonesForth as an example, but soon found I had to rewrite most of it to ma

Rudy Velthuis replied to the topic 'Directives' in the forum. 8 months ago

>I have two classes with the same name, but one of them have datasnap configurations, and other have firedac local >connection. the two classes are implemented in differents units.>>When the user set the tipe of connection in the login form, the system changes the connection class for one of them.
Do something like:
if UserChoosesBla then
begin
MyQuery := UnitWithBla.TBlaQuery.Create(params);
// Set up bla query
end
else
begin
MyQuery := UnitWithFoo.TFooQuery.Create(params);
// set up Foo query
end;
// Use MyQuery. You can check for type with: if MyQuery.InheritsFrom(...) then

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Rudy Velthuis updated blog post It is working again in Blogs 1 year ago

It appears that I am able to write posts again. YAY! Expect to see more here. And it looks as if the comments were restored as well. Thank you, Embarcadero! ...

Rudy Velthuis updated blog post It is working again in Blogs 1 year ago

It appears that I am able to write posts again. YAY! Expect to see more here. And it looks as if the comments were restored as well. Thank you, Embarcadero! ...

Rudy Velthuis updated blog post It is working again in Programming 1 year ago

It appears that I am able to write posts again. YAY! Expect to see more here. And it looks as if the comments were restored as well. Thank you, Embarcadero! ...

Rudy Velthuis updated blog post It is working again in Programming 1 year ago

It appears that I am able to write posts again. YAY! Expect to see more here. And it looks as if the comments were restored as well. Thank you, Embarcadero! ...

Rudy Velthuis created new blog post It is working again in Blogs 1 year ago

It appears that I am able to write posts again. YAY! Expect to see more here. And it looks as if the comments were restored as well. Thank you, Embarcadero! ...

This blog doesn't seem to be functional. I can't write, edit or administer my posts. Please head to rvelthuis.blogspot.com, over which I have... Show more

I would like to have the ability to write and administer/edit my posts. That seems to be impossible, right now.

Rudy Velthuis updated blog post In Delphi, is addition commutative? in Blogs 2 years ago

Answer: no, not necessarily. Despite the existence of operator precedence, i.e. the fact that the following X := 3 + 4 * 5; results in 23 and not in 35, the order of operands can still have an effect. In my ...