* hello world example

public function main
    globals
        myptr pointer to int
    types
        socket prototype
            externals
                fd int
            procedure returning fd

        vfprintf prototype
            procedure

        myalias alias int
    procedure
        display "socket=" socket etc
        display ", vfprintf=" vfprintf
        display "this is a string"
        display cast "this is a string" to pointer to void