Linked by Rüdiger Klaehn on Thu 5th Aug 2004 05:00 UTC
One of the most awaited features of Microsoft .NET 2.0 is generics. Generics promise to increase type safety, improve performance, reduce code duplication and eliminate unnessecary casts. The most obvious application of generics in the framework class library are the generic collections in the new System.Collections.Generic namespace. Much has been written about those, but they are not the topic of this article.
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You point out, that writing a wrapper class would be to slow, which is true. But adding the IArithmetic interface would only relieve you of the work of writing those wrapper classes, performance wise.
Even if the numbers will not be stored as objects but as real int and float fields, the generic code still has to call the Add method instead of just issuing the ADD IL opcode. In the end, this might save you a little space since just an int needs to stored, but the unnecessary function call remains.