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Replying to @johnregehr
@johnregehr@i0n1c to be fair, anyone using gcc instead of clang has decided they don't expect security ;)1 reply 0 retweets 5 likes -
Replying to @thegrugq
@thegrugq@johnregehr@i0n1c You are aware that this particular optimization is performed equally by clang and gcc? https://goo.gl/4eCTes1 reply 1 retweet 2 likes -
Replying to @ch3root
@ch3root@thegrugq@johnregehr@i0n1c When could that comparison possibly be useful anyway?1 reply 0 retweets 0 likes -
Replying to @RichFelker
@RichFelker Well that little dance that musl does to set f.rend in src/stdlib/strtol.c is only a different kind of UB.2 replies 0 retweets 0 likes -
Replying to @volatile_void
@spun_off Yes, it should be done with uintptr_t, but really index/count, not pos/end, should be used.
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Replying to @RichFelker
@spun_off The latter bad design was to match glibc ABI for binary stuff that pokes at internals (due to getc/putc macros), but...
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Replying to @RichFelker
@spun_off ...we could instead put perma-nulls at those offsets in FILE and use a pos/len representation elsewhere in the structure.
1 reply 0 retweets 0 likes
@spun_off It will just take a lot of work to refit all the code using them.
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