Using Generics to Manipulate Enumerated Types

I’d like to present a short class written by my colleague at work. Why? Because I just love how it uses the generics syntax to simplify some operations on enumerated types.

Like me, he hated the hoops one must jump through to convert an instance of an enumerated type to a string, to check if an integer value that was read from some storage contains a valid integer representation of some enumerated value and to enumerate (no pun intended) over such a type. Unlike me, he did something about that and wrote a Spring-inspired Range<T>.

Numbers I Should Keep In Mind

Name	Nanoseconds
L1 cache reference	0.5
Branch mispredict	5.0
L2 cache reference	7.0
Mutex lock/unlock	100.0
Main memory reference	100.0
Compress 1K bytes with Zippy	10,000.0
Send 2K bytes over 1 Gbps network	20,000.0
Read 1 MB sequentially from memory	250,000.0
Round trip within same datacenter	500,000.0
Rusty disk seek	10,000,000.0
Read 1 MB sequentially from network	10,000,000.0
Read 1 MB sequentially from disk	30,000,000.0
Send packet from CA->Netherlands->CA	150,000,000.0

From always excellent kellabyte.

Embarcadero Academy: The Power of XE3

Next Wednesday (March 13^th) we have organized a presentation for all users that are afraid to upgrade and are staying (for example) with Delphi 7. In “The Power of XE3” session I’ll go through all^* new features added to the Delphi and C++ Builder since Delphi 7 days. We’ll discuss language changes, platform changes, framework changes, additions to the VCL, RTL, database layer …

Register here.

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^* As much as humanly possible. There are simply too many to cover them all.

Developer Wanted

The following text is a job offer for a Slovenian developer and is therefore written in Slovenian language.

Iščemo Delphi razvijalca za izpeljavo večmesečnega projekta. Zahteve: zna (ali se je pripravljen naučiti) osnovega dela z zbirnikom. Delovno mesto je v Ljubljani. Delo na domu ni možno.

Projekt je dvodelen, prva faza vsebuje predelavo aplikacij na MS Ribbon, druga pa predelavo taistih aplikacij, da se bodo prevedle za Win64.

Ob uspešni izvedbi projekta obstaja tudi možnost zaposlitve za nedoločen čas.

Prijave (s CV) in dodatna vprašanja pošljite na sandra.support@fab-online.com, v subject pa vpišite "razpis Delphi".

Če vas zanima, s čim se ukvarjamo, si oglejte www.fab-online.com.