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Reference for unit 'System' (#rtl)

Low

Return lowest index of open array or enumerated

Declaration

Source position: system.fpd line 49

function Low(

Arg: TypeOrVariable

):TOrdinal;

The return value of Low depends on it's argument:

If the argument is an ordinal type, Low returns the lowest value in the range of the given ordinal type.
If the argument is an array type or an array type variable then Low returns the lowest possible value of it's index.
If the argument is an open array identifier in a function or procedure, then Low returns the lowest element of the array, which is always zero.
If the argument is a set type then it returns the lowest value of the underlying ordinal type.

The return type is always the same type as the type of the argument.

for an example, see High.

None.

High		Return highest index of open array or enumerated
Ord		Return ordinal value of an ordinal type.
Pred		Return previous element for an ordinal type.
Succ		Return next element of ordinal type.