RAD Studio VCL Reference
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System.Low Function

Returns the lowest value in a range.

Pascal
procedure Low(X);
C++
Low( X);

System

In Delphi code, call Low to obtain the lowest value or first element of an Ordinal, Array or ShortString. Result type is X, or the index type of X where X is either a type identifier or a variable reference.

Type 
Low returns 
Ordinal type (includes Int64)  
The lowest value in the range of the type  
Array type  
The lowest value within the range of the index type of the array  
short string type  
Returns 0  
Open array  
Returns 0  
short string parameter  
Returns 0  

 

High 

VarArrayLowBound

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