The following programs demonstrate the use of the BASED ON clause
    to declare types. Both the C and Pascal programs use the BASED
    ON clause to declare the function, job_name. These programs pass
    the value of the field JOB_CODE to the function. The function
    determines the job title associated with the job code and passes
    the job title back to the calling program. Note that in the C
    program a program variable, temp_job_name, is required so that
    the function can return the job title to the calling program.
    In Pascal, function values are returned to the calling program
    automatically.