Steven Giesel • 4/17/2023

Covariance and Contravariance in C#

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This technical article provides a detailed explanation of covariance and contravariance in C# generics. It defines both concepts, illustrates them with examples using interfaces like IEnumerable<out T> and IComparer<in T>, and demonstrates how they improve code flexibility and reusability compared to using generic constraints or base types directly.

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#c #.net #generics
Covariance and Contravariance in C#

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