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HELP ISVECTORCLASS John Williams, June 1985 ISVECTORCLASS(item) -> key or FALSE This procedure tests whether its argument, which can be any POPLOG object, is a vector type data-structure. If so, it returns the object's key, otherwise it returns FALSE. For example: isvectorclass('foo') => ** <key string> isvectorclass([f o o]) => ** <false> vectorclass bitstring 1; isvectorclass(initbitstring(5)) => ** <key bitstring> See also: *ISRECORDCLASS, *ISEXTERNALCLASS, *VECTORCLASS, *VECTORS, *CLASSES --- C.all/help/isvectorclass ------------------------------------------- --- Copyright University of Sussex 1988. All rights reserved. ----------