5. Constant declarations
A constant declaration associates an identifier with a constant value.
| ConstantDeclaration | = | IdentDef "=" ConstExpression.
|
| ConstExpression | = | Expression.
|
A constant expression is an expression that can be evaluated by a mere textual
scan without actually executing the program. Its operands are constants (Ch.8) or predeclared functions (Ch.10.3) that can be evaluated at compile time.
Examples of constant declarations are:
N = 100
limit = 2*N - 1
fullSet = {MIN(SET) .. MAX(SET)}
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Geßwein; 8. Juni 1995