Vadmyst's Life Chronicles

Determining .NET Assembly Target Platform

noreply@blogger.com (Vadym Stetsiak) — Fri, 14 Oct 2011 00:53:51 PDT

.NET assembly can be built with different platform targets: any CPU, x86 or x64. But if all you got is already built binary file: how to determine what is exe or dll target platform? In .NET...

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Fastest Way To Retrieve Custom Attributes for a Type Member

noreply@blogger.com (Vadym Stetsiak) — Sun, 18 Jul 2010 13:19:38 PDT

In my previous posts (Performance Issues When Comparing Strings in .NET and When string.ToLower() is Evil) string related operations were discussed. In this post we'll examine performance issues...

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Type inference in generic methods

noreply@blogger.com (Vadym Stetsiak) — Thu, 08 Jul 2010 13:37:45 PDT

Did you know that in .NET generic methods have type inference? It can also be named as implicit typing. Let's see how type inference looks in code. In the sample below there is a class with...

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Thread Safe Collection Iteration Techniques

noreply@blogger.com (Vadym Stetsiak) — Fri, 18 Jun 2010 01:26:38 PDT

Under multithreaded environment every operation should be tested and analyzed from the viewpoint of thread-safety. That is check every data structure what will happen if it is accessed/changed from...

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AesManaged class Key and KeySize properties issue

noreply@blogger.com (Vadym Stetsiak) — Tue, 15 Jun 2010 08:38:42 PDT

Today when working with AesManaged class I've encountered very strange behavior. If you have a code like this - you're in trouble: AesManaged aes = new AesManaged(); aes.Key = key; aes.KeySize =...

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The Big Bang Theory sitcom scientific background

noreply@blogger.com (Vadym Stetsiak) — Wed, 28 Apr 2010 07:35:36 PDT

Usually I do not write about TV. But the serial in the subject is one of my favorite. Recently I've found blog of the guy who does scientific background for that sitcom. There are a lot of...

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Refactoring code with lambda expressions

noreply@blogger.com (Vadym Stetsiak) — Tue, 15 Jun 2010 11:44:59 PDT

Without much ado lets go straight to the code that needs to be refactored: bool SomeMethod(long param) { // // some prefix code // try { //do specific job here return...

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Mono: C# compiler bug with property inheritance

noreply@blogger.com (Vadym Stetsiak) — Thu, 03 Jun 2010 07:50:41 PDT

The bug appeared quite unexpectedly. In Visual Studio code sample below compiled fine. But doing the same with Mono C# compiler results in error: Compiler Error CS0546: 'Derived2.Accessor.set':...

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MSSQL DATEDIFF Equivalent in MySQL

noreply@blogger.com (Vadym Stetsiak) — Sun, 13 Dec 2009 02:19:22 PST

Recently I was porting T-SQL (MSSQL) code into SQL dialect used by MySQL. Process went smoothly until I have stuck with dates. Especially intervals between two dates. In T-SQL datediff function is...

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String Compare Performance in D

noreply@blogger.com (Vadym Stetsiak) — Fri, 20 Nov 2009 14:22:00 PST

A while ago I was measuring performance of string comparison in .NET. Today I played with string type in D programming language and decided to make similar tests. D is relatively new language...

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Local Computer Connection Failure When Using ActiveSync

noreply@blogger.com (Vadym Stetsiak) — Wed, 18 Nov 2009 11:54:58 PST

Not so long ago I have encountered strange problem with Windows Mobile device connectivity when using ActiveSync. Here is long story cut short and the solution I came up with. Server software...

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Performance Issues When Comparing .NET Strings

noreply@blogger.com (Vadym Stetsiak) — Wed, 11 Nov 2009 14:13:53 PST

Every time when you want to use string.Compare("str1", "str2", true) for case insensitive string comparison - think twice. To illustrate my point I am bringing this example: int iters =...

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Howto: C++ Class Conversion Operator in .CPP file

noreply@blogger.com (Vadym Stetsiak) — Thu, 24 Sep 2009 06:53:01 PDT

In case someone did not know how to do this. It took me some time to figure out the right syntax for writing conversion operator implementation in the CPP file. Here is the definition of the...

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Complex Keys In Generic Dictionary

noreply@blogger.com (Vadym Stetsiak) — Tue, 23 Jun 2009 14:09:36 PDT

Let us start with the quiz about generic dictionary. Dictionary simpleDict = new Dictionary(StringComparer.OrdinalIgnoreCase); simpleDict["name1"] = "value"; simpleDict["Name1"] = "value2";What value...

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Check If Local Port Is Available For TCP Socket

noreply@blogger.com (Vadym Stetsiak) — Thu, 07 May 2009 09:35:30 PDT

From time to time we need to check if specified port is not occupied. It can be some sort of setup action where we install server product and want to assure that tcp listener will start without any...

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Discovering System Endianess

noreply@blogger.com (Vadym Stetsiak) — Wed, 29 Apr 2009 13:20:24 PDT

When doing network programming we send bytes to and from peers. These bytes sometimes constitute complex protocols. Let us assume we have simple message exchange protocol with some header and some...

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Windows Vista Defragmentation Tools

noreply@blogger.com (Vadym Stetsiak) — Thu, 26 Mar 2009 14:51:04 PDT

Windows Vista by default uses NTFS file system. Sooner or later files on it will start to fragment. Fragmentation can lead to significant disk I/O performance decrease. Common way how to handle...

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Image Watermarking

noreply@blogger.com (Vadym Stetsiak) — Sun, 15 Mar 2009 15:14:37 PDT

We all know that when image is posted on the internet it no longer belongs to you. It can be arguable, but nevertheless, any user with browser can simply save it on HDD and you can do nothing about...

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Searching for Similar Words. Similarity Metric

noreply@blogger.com (Vadym Stetsiak) — Mon, 19 Jan 2009 14:16:51 PST

How one can find out if two or more words are similar? I do not mean semantically similar (synonyms aren't taken into consideration), but visually similar. Consider, these two words, "sample1" and...

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Bit Flags: The Simple Way

noreply@blogger.com (Vadym Stetsiak) — Fri, 07 Nov 2008 02:50:47 PST

Time from time we face the need or (for some of us) an opprotunity to mess with the bit fields. As we all know bytes consist of bits. Bit can have two values "0" and "1". Using this knowledge we can...

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Handling Windows Operating System Version Mess

noreply@blogger.com (Vadym Stetsiak) — Mon, 01 Jun 2009 03:27:21 PDT

Operating System (OS) like any other software should have a version. So do new OSes from Microsoft. Sometimes OS version is crucial for the installation software development process. Some products...

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"Using" magic or working with type aliases

noreply@blogger.com (Vadym Stetsiak) — Fri, 18 Jul 2008 00:26:00 PDT

Generics in C# allow us specify and construct rather complex types. For instance, we can create a dictionary that maps Id number with the name: Dictionary<int, string> idNameMapping;We can...

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The basics of secure data exchange under TCP

noreply@blogger.com (Vadym Stetsiak) — Sat, 28 Jun 2008 12:26:35 PDT

Doing data exchange in plain text is very convenient and easy to implement but what can you do to prevent eavesdropping, tampering, and message forgery of the data you send back and forth? Here's...

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Hashing in .NET (cryptography related battle tactics)

noreply@blogger.com (Vadym Stetsiak) — Wed, 18 Jun 2008 13:55:28 PDT

Those who think I'm going to talk about stuff related to hashish or hash brown are totally not right. (By the way I do like hash brown as well as this great Japanese liquor ;) ) I will be talking...

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Seeking CSS Enlightenment

noreply@blogger.com (Vadym Stetsiak) — Tue, 27 May 2008 14:44:18 PDT

Nowadays it is hard to find software developer or web-designer that doesn't know what CSS is all about. I must say that until recently, I didn't realize what potential CSS has. I found a place in...

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