[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] |
Return ordinal value of an ordinal type.
Source position: system.fpd line 57
function Ord( |
X: TOrdinal |
):LongInt; |
Ord returns the Ordinal value of a ordinal-type variable X.
Historical note:
Originally, Pascal did not have typecasts and ord was a necessary function in order to do certain operations on non-integer ordinal types. With the arrival of typecasting a generic approach became possible, making ord mostly obsolete. However ord is not considered deprecated and remains in wide use today.
None.
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Convert byte value to character value |
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Return next element of ordinal type. |
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Return previous element for an ordinal type. |
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Return highest index of open array or enumerated |
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Return lowest index of open array or enumerated |
Program Example45; { Program to demonstrate the Ord,Pred,Succ functions. } Type TEnum = (Zero, One, Two, Three, Four); Var X : Longint; Y : TEnum; begin X:=125; Writeln (Ord(X)); { Prints 125 } X:=Pred(X); Writeln (Ord(X)); { prints 124 } Y:= One; Writeln (Ord(y)); { Prints 1 } Y:=Succ(Y); Writeln (Ord(Y)); { Prints 2} end.