EqualityComparer<T>.GetHashCode(T) Method
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When overridden in a derived class, serves as a hash function for the specified object for hashing algorithms and data structures, such as a hash table.
public:
abstract int GetHashCode(T obj);public abstract int GetHashCode(T obj);override this.GetHashCode : 'T -> intPublic MustOverride Function GetHashCode (obj As T) As Integer- obj
- T
The object for which to get a hash code.
A hash code for the specified object.
The type of obj is a reference type and obj is null.
Implementations are required to ensure that if the Equals(T, T) method returns true for two objects x and y, then the value returned by the GetHashCode(T) method for x must equal the value returned for y.
| Product | Versions |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
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