Ada Programming/Attributes/'Last

Description

X'Last, where X is any scalar type (for example integer, enumerated, real), is an attribute that represents the last value (upper bound) in the range of type X. The value returned is of type X.

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Example

type My_Enum is (Enum1, Enum2, Enum3);
type My_Int  is range -1 .. 5;
... 
pragma Assert (My_Enum'Last = Enum3);  -- OK
pragma Assert (My_Int'Last  = 5);      -- OK
pragma Assert (My_Int'Last  = 4);      -- Wrong!
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Last modified on 5 January 2009, at 23:55