Functions in Swift must be annotated to allow discarding their results without a... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		saagarjha on April 22, 2020 \| parent \| context \| favorite \| on: You’ve Got 0-Click Mail: Unassisted iOS Attacks RC... Functions in Swift must be annotated to allow discarding their results without a warning.

cozzyd on April 22, 2020 [–]

At least on on my system, ftruncate is annotated with __wur, so a simple -D_FORTIFY_SOURCE would suffice to produce a warning in this case.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact