News for hackers. Stuff that matters.

A comment on C99 doesn't need function bodies, or 'VLAs are Turing complete'. Parent comment

Re:C99 doesn't need function bodies, or 'VLAs are Turing com... by astrange on Friday August 05, 2022 @01:12AM (#32351997)
They're not unsafe (in the memory sense) as long as they check for overflow and reliably crash if there is one.
[ Parent | on HN ]
Re:C99 doesn't need function bodies, or 'VLAs are Turing com... by naasking on Friday August 05, 2022 @03:33AM (#32352886)
If a lot of platforms don't implement this check reliably, then it's unsafe in practice at this time, even if not in theory.
[ Parent | on HN ]
Re:C99 doesn't need function bodies, or 'VLAs are Turing com... by astrange on Friday August 05, 2022 @07:40AM (#32354700)
Who out there has a version of stack checking that doesn't actually check the stack…? If it doesn't check by default, as C doesn't, then it's not "as long as".
[ Parent | on HN ]