09-Feb-2014 02:17, Walter Bright пишет:
On 2/7/2014 12:51 PM, Dmitry Olshansky wrote:
It's deh.d or rather deh_win32./ deh_win64_posix.d and it doesn't look
like
_all_ that lot especially if you have no finally blocks and the only
catch is
the top-most catch-all.
It's a heluva lot slower than "jmp".
If you can show me how a single unconditional jump propagates error code
4 calls up the stack I'm sold.
I do understand it's slow, it's not that slow to make difference in the
discussed case. It's all about jumping to the wrong conclusions.
To put it in one pitch: it should be possible to throw/catch in excess
of 100k exceptions per second no problem at all (assuming a single core
of some run of the mill modern CPU).
Nobody is asking to optimize it better then the normal flow.
--
Dmitry Olshansky
