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SpeedString concatenation

The SpeedString class boost performance on string concatenation. Almost every VB developer uses strValue = strValue & NewData as concatenation. The SpeedString class does the same, but a few hunderds times faster (something up to 1000 times).
This project demonstrates the use of my SpeedString class and compares the execution times of both methods.

Inputs
Syntax: SpeedString.Append StringValue, [StringLength] The length is optional. Note that it also provides a faster method for the LEFT method.

Returns
Syntax: SpeedString.Data Returns as string containing the concatenated data.

API Declarations
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)

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