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Version 2.0.0.2 released. Summary: RantPack is a utility library I maintain and actively use. The main themes of this library are functional programming, patterns, immutable/pressitent collections, future and other threading primitives. I've placed the
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"If you implement equality in a child class, including operators, you must implement the equality operators in the base class." Unfortunately this is another case of learn the hard way but makes sense when you think about it. The below code snippet is
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I like Enums and use them frequently for options and behavior. To an extent I use Enum's to control behavior. For example enum Kind { Kind1, Kind2, Kind3 } class Example { private Kind m_kind; public int SomeAction() { switch (m_kind1) { case
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Recently I've done a bit of posting about the difficulties of properly implementing equality in VB (and DotNet in general). While most of the problems can be fixed with a standard snippet the one really hard to implement issue is GetHashCode(). The rules
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I released a new version of RantPack today. Mostly this is a bug fix release with a couple of minor new features. https://code.msdn.microsoft.com/Release/ProjectReleases.aspx?ProjectName=RantPack&ReleaseId=1119 Features Added a way to shim Immutable
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A recent check in of mine raised a few eye brows during reviews. I checked in a few macros which ended with/contained a "do{}while(0)" and people were curious as to why. In my experience there are two main uses for it. Insert an empty statement with no
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One action I find frustrating in C# is where a particular action needs to be taken based off of the type of a particular object. Ideally I would like to solve this with a switch statement but switch statements only support constant expressions in C# so
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This is a bit of a follow up to a previous post we discussed how to properly implement equality in VB. Several users commented/asked that IEquatable(Of T) could be used in place of overriding Equals(). Since IEquatable(Of T) doesn't define a GetHashCode()
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Many developers want to implement equality functions for their objects. DotNet made equality a deep part of the framework and added support all the way up to System.Object with Equals and GetHashCode . In addition to the strongly enforced
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Really this guideline is a bit longer but putting it all in a blog title seemed a bit too much. The full guideline should read: "If a generic class constructor arguments contain types of all generic parameters, provide a static method named
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Previously we discussed the opposite problem. This is a lesser but often more frustrating problem because there is no, AFAIK, built in solution for the BCL. However it's problem that can be solved once and reused with a generic solution. IComparable<T>
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IComparable(Of T) is an interface saying "I can compare myself to other objects of the same type". And IComparer(Of T) is an interface saying "I can compare two objects of this type.". Often API's which need to perform
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One API that seems to be missing from List(Of T) is a BinaryInsert method. Especially since there is already a BinarySearch method. Binary insert is a method for inserting a value into an already sorted list. Since the list is already sorted
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CComObject::CreateInstance is a light weight method for creating instances of COM objects in your code. Unfortunately the design of the API makes it easy to introduce subtle errors into your code. The two problems are it encourages manually ref counting
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It's often useful to ensure that actions occur on specific threads, in particular event handlers. Take Windows Forms for instance where all operations on a Control must occur on the thread it was created on. Typically this is not a problem
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