CVL                      Convert String to Long Integer

 y@ = CVL(4-byte-string)

    Converts a four-byte string expression to a long integer numeric
    variable.

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      Notes:    Because of the way Turbo Basic stores numbers in random
                access files, numbers have to be converted to strings
                before they can be written to disk; when read from the
                disk, they must be reconverted from strings to numbers.

                A long integer must be converted to a string (via MKL$)
                before being stored in a random access file. To retrieve
                it, first assign it to a file buffer field (with GET),
                then use CVL.