In message: <[EMAIL PROTECTED]> Joerg Sonnenberger <[EMAIL PROTECTED]> writes: : On Thu, Jul 13, 2006 at 11:16:18AM +0530, Kamal R. Prasad wrote: : > Im sorry I didn't understand you. setjmp() stores a few register contents : > [notably ip] in a jmpbuf -which are restored after a longjmp(). How is the : > try/catch mechanism more efficient than a setjmp()/longjmp() in terms of : > space/time complexity? : : Because you have to run setjmp for *every* try{}, independent of whether : it is ever actually needed.
It is worse than even that. You have to run setjmp for every frame, because there could be an exception thrown from a lower frame to an upper frame and you have to cleanup your frame when that happens. Variables go out of scope, and must be destructed, etc. Warner _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"