csharp / expert
Snippet
Generic Math via Static Abstract Members
Static abstract members in interfaces allow C# to define operators and static properties within an interface. This is the foundation of 'Generic Math', enabling developers to write generic algorithms that work across all numeric types (int, float, decimal, etc.) by constraining type parameters to the INumber<T> interface.
snippet.cs
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using System.Numerics;public static class MathUtils {public static T SumAll<T>(IEnumerable<T> values) where T : INumber<T> {T result = T.Zero;foreach (var value in values) {result += value;}return result;}}// Usagedouble dSum = MathUtils.SumAll(new[] { 1.5, 2.5 });int iSum = MathUtils.SumAll(new[] { 10, 20 });
Breakdown
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where T : INumber<T>
Constrains T to types that implement the standard numeric interface, including operators.
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T result = T.Zero;
Accesses the static Zero property defined in the interface for the specific type T.
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result += value;
Uses the static '+' operator defined on the interface to perform addition on generic types.