On Sat, 2 Aug 2025, Martin Uecker wrote: > In preparation N3652, this removes some UB from the conditional > operator when forming a composite type. This is an improvement > also for earlier language modes (previously I submitted PR108931 > for this). > > Bootstrapped and regression tested on x86_64. > > > c: Evaluate size expression only in the active branch of conditional > operator [PR108931] > > For size expressions in the branches of the conditional operator should > be evaluated only for the active branch. To achieve this, construct > also the size expressions for the composite type as conditional > expressions depending on the condition of the conditional operator. > The change avoids some undefined behavior removed by N3652, but the > new constraints for C2Y are not yet implemented.
OK. -- Joseph S. Myers josmy...@redhat.com
