Anthony Giretti • 11/23/2025

C# 14: User-Defined Compound Assignment Operators

This article details the new C# 14 feature enabling developers to define custom compound assignment operators (e.g., +=, -=). It explains how this provides control over in-place operation semantics, contrasts it with previous compiler-synthesized behavior, and highlights benefits like cleaner APIs, domain-specific logic, and performance gains for value types. It includes a code example and practical considerations for implementation.

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#programming languages #c #Dotnet