Author: Alexandru Ciobanu

DeHL 0.4: Linq-ifying Delphi

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Since I have started working on DeHL, one of the main purposes was to get to the point where I could use Linq-like extensions on collection classes. Of course I could not call the new functionality Linq since…

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More about enumerables

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In the last post I have described how enumeration works in Delphi. Now I will try to expand the subject a bit and make a more general description of what enumerability actually means and how it can solve…

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Enumerables in Delphi

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It is not a surprise that most programming languages in our time have the built-in support for enumerators/iterators. This is a mandatory feature since enumerators and enumerable collections simplify the development of applications and make the code cleaner….

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DeHL 0.3 is out

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I’m proud to announce the 0.3 version of DeHL library. This release focused on bug-fixes and extensions to type support engine. This version should pretty much stabilize what I started and should leave me more time to extend…

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Test

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Testing feeds. Ignore me!

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I hate integers!

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Did I catch your attention? I guess I did if you are reading this. Just to be clear, I don’t hate integers — I hate using integers (a.k.a. signed numbers) where they don’t make sense. For example let’s…

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DeHL 0.2.3 released

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Not many changes in this release: Fixed a bug in BigCardinal related to zero-length numbers BigCardinals embedded in variants now properly negate. Support for the NOT operation for BigCardinal. … As usual some tests. 0.2.3 is based on…

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DeHL 2.2 Released

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In this release I have changed the name of the library from DelphiHelperLib to DeHL to be shorter. The most important changes in this release are: Renamed the library to DeHL in hopes to remove the length of…

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How To: Invokable Variants

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In this post I will try to explain how to create a “late-bound” dictionary based on invokable variants. Most of the techniques related to the creation of a custom Variant data type are already described in How To:…

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Little warning

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If you’re ever going to write a custom invokable variant read the following, otherwise just skip this post. I will not detail on how to create a custom invokable variant type (that is a matter for another post),…

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