Steven Giesel • 5/12/2022

Why are sealed classes faster in C#? And should I seal them?

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This technical article analyzes why sealed classes in C# can offer minor performance improvements, primarily by eliminating the need for virtual function dispatch and simplifying type checks with 'is' and 'as' operators. It includes benchmark data and discusses the practical trade-offs, noting the gains are often negligible but interesting from a low-level perspective.

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#performance #c #type checking
Why are sealed classes faster in C#? And should I seal them?

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