System.Low

• Up to Parent: System

Delphi

function Low(var X): Integer;

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.pas	System	System

Description

Returns the lowest value in a range.

In Delphi code, call Low to obtain the lowest value or first element of an Ordinal, Array, or ShortString. The 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 is within the range of the index type of the array.
short string type	Returns 0. Note: Zero elements is the string length.
Open array	Returns 0.
AnsiString	Returns 1 when Zero Based Strings is off; otherwise, it returns 0.
WideString	Returns 1 when Zero Based Strings is off; otherwise, it returns 0.
UnicodeString	Returns 1 when Zero Based Strings is off; otherwise, it returns 0.
short string parameter (OpenString)	Returns 0. Note: Zero elements is the string length.

Note: Low does not apply for array properties.

See Also

• High

• VarArrayLowBound

• Delphi Intrinsic Routines

Code Examples

• SystemLow (Delphi)