Difference between revisions of "Const"
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Revision as of 17:50, 12 January 2013
Syntax
const[ ]
Semantics
Enforces the read only property of a variable.
Example
var a:Int; a:=34; a:(a :: const[]); a:=33;
The code in the above example will produce an error. Whilst the first assignment (a:=34) is legal, on the subsequent line the programmer has modified the type of a to be that of a combined with the type const. The second assignment is attempting the modify a now read only variable and will fail.
