mat@hou4b.UUCP (Mark Terribile) (12/26/84)
A friend, who can't post, has asked me to put this up. Please send mail to him, not to me! Merry X-snacks! (a former dessert) There has been a lot of discussion about casting a pointer to char as a pointer to a function, but Whitesmith's has gone one better. Here is a page from section 2 describing 'onexit' which is passed a pointer to a function returning a function to a pointer!!!!! (copied without anybodys permission, so don't tell) NAME: onexit - call function on program exit SYNOPSIS VOID (*onexit())(pfn) VOID (*(*pfn)())(); FUNCTION onexit registers the function pointed at by pfn, to be called on program exit. The function at pfn is obligated to return the pointer returned by the onexit call, so that any previously registered functions can also be called. RETURNS onexit returns a pointer to another function; it is guaranteed to be non-null EXAMPLE GLOBAL VOID (*(*nextguy)())(), (*thisguy())(); if( !nextguy ) nextguy = onexit (&thisguy); SEE ALSO exit BUGS the type declaractions defy description, and are still wrong +----------------------------------------+ | Jeff 'oh my gawd - another one' Skot | | who's spending too much time at ATT IS | | in beautiful downtown Somerset N.J. | | but known to you as abnji!jeff | +----------------------------------------+ -- from Mole End Mark Terribile (scrape .. dig ) hou4b!mat ,.. .,, ,,, ..,***_*.