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The built-in function LEN in BlackBox accepts a type T as an actual
parameter as well as a variable of type T.
For example, given the declarations:
TYPE
IntArray = ARRAY 10 OF INTEGER;
VAR
ia: IntArray;
the compiler will accept either of the following forms:
LEN(ia)
LEN(IntArray)
Is the acceptance of a typename as a parameter intentional or an
accident?
I can't decide either way by looking at the language report, but the
following lead me to think that it is accidental:
1) I cannot find any examples in the documentation where a type rather
than a variable is used as a parameter to LEN.
2) A parameter named v (for variable?) is used in the definition of LEN
i.e. LEN(v) whereas T (for TYPE?) is used in the definition of MAX i.e.
MAX(T) which does expect a type.
Chris Burrows
CFB Software
http://www.cfbsoftware.com/gpcp
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Received on Mon Dec 13 2004 - 07:25:47 UTC