Timely bug: today's explanation of the Diablo3 gold-duping market
crash. http://pastebin.com/YYPM4uQK
On 4/29/2013 10:43 PM, Jack Moffitt wrote:
For the most part, nobody checks. They weighed the cost of those errors
against the potential performance loss and decided they would prefer to
go fast.
In C the checking is just too ugly without operator overloading. In C++ you
can make it look nice, but it's a lot more expensive than it could be if you
had compiler support, I expect. Even so, in the browser we write a lot of
checking code. Other browsers do too.
I came across Tim Sweeny's POPL presentation[1] again today and
spotted page 30 where he claims 50% of the bugs in AAA games come
from:
- array bounds
- deref of null pointers
- integer overflow
- accessing unintialized vars
http://www.st.cs.uni-saarland.de/edu/seminare/2005/advanced-fp/docs/sweeny.pdf
jack.
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