NAME
    LengthArgstring - Returns the length value stored in the argstring
SYNOPSIS
    length = LengthArgstring(argstring)
    D0                       A0
    ULONG LengthArgstring(UBYTE *);
FUNCTION
    This function returns the length value stored in the argstring.
    This is *NOT* the same as doing a strlen() type call on the
    argstring.  (Note that argstrings may contain NULLs)
INPUTS
    argstring - A pointer to an argstring that was created by ARexx
RESULTS
    length - The length of the argstring.
EXAMPLE
SEE ALSO
    createargstring()
BUGS