RAD Studio VCL Reference
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IEqualityComparer.GetHashCode Method
IEqualityComparer Interface | IEqualityComparer Members | Generics.Defaults Namespace | Description | See Also
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GetHashCode is a generic method used to generate the hash code for a value.

Pascal
function GetHashCode(const Value: T): Integer;
C++
__fastcall int GetHashCode(const T Value);
Description

Use GetHashCode to generate the hash code for the given input value. Any class that implements the IEqualityComparer interface is expected to provide the implementation for the GetHashCode method.

Note: The generated hash codes are not required to be unique. Still, we recommend that the generated values be as different as possible from one another.  

Two equal values are required to have the same hash code, while two different values are not required to have different hash codes.

 

 

See Also
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